Static Ram Source
Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg preferred. I
have already tried mouser and digi key only to find that my order has been
permanently back ordered. I would like it to be dip so I can breadboard with
it. It seems like these are fading out of existence but my use is not.
Does any one know of a place where I can purchase a 1 meg dip SRAM that has
it in stock?
Thanks,
btw the mouser parts were less than $3.00 so any suggestions would be nice
if there were within that range.
have already tried mouser and digi key only to find that my order has been
permanently back ordered. I would like it to be dip so I can breadboard with
it. It seems like these are fading out of existence but my use is not.
Does any one know of a place where I can purchase a 1 meg dip SRAM that has
it in stock?
Thanks,
btw the mouser parts were less than $3.00 so any suggestions would be nice
if there were within that range.
Comments
I need something 256k-1meg 300ns or less is acceptable.
DIP is also preffered.
I have also tried mouser and digikey with no luck.
Ryan
> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg preferred.
I
> have already tried mouser and digi key only to find that my order has been
> permanently back ordered. I would like it to be dip so I can breadboard
with
> it. It seems like these are fading out of existence but my use is not.
>
> Does any one know of a place where I can purchase a 1 meg dip SRAM that
has
> it in stock?
>
> Thanks,
>
> btw the mouser parts were less than $3.00 so any suggestions would be nice
> if there were within that range.
>
>
>
>
>I am also looking for an SRAM chip...
>I need something 256k-1meg 300ns or less is acceptable.
>DIP is also preffered.
>I have also tried mouser and digikey with no luck.
>Ryan
>
>
>> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg preferred.
>I
>> have already tried mouser and digi key only to find that my order has been
>> permanently back ordered. I would like it to be dip so I can breadboard
>with
>> it. It seems like these are fading out of existence but my use is not.
>>
>> Does any one know of a place where I can purchase a 1 meg dip SRAM that
>has
>> it in stock?
>>
>> Thanks,
>>
>> btw the mouser parts were less than $3.00 so any suggestions would be nice
>> if there were within that range.
>>
>>
Gents:
You haven't given all that much information in the way of exacting
specifications,
but I would expect Jameco might have what your seeking. Did either of you
expect
such a device to be Stamp compatable, or is this an OT request ?
Regards,
Bruce
>>
>>
>
>
>
>
>
with a stamp...well if a stamp had more I/O and memory :-)
MP3 player actualy .. I need it for the buffer
> You haven't given all that much information in the way of exacting
> specifications,
> but I would expect Jameco might have what your seeking. Did either of you
> expect
> such a device to be Stamp compatable, or is this an OT request ?
>
> Regards,
>
> Bruce
>Its for a PIC project .. picbasic pro... so I am sure It could be done
>with a stamp...well if a stamp had more I/O and memory :-)
>MP3 player actualy .. I need it for the buffer
>
Hummm Ole Ryan-
Runnin' me around in a circle again <g>.
Let me say this differently - what are the specifications, or what chip
was used in the sample/example or instructions ?
The kind of information required is:
Access -
parallal (multi-pin data) or
serial (single pin data),
and if single pin data what access method
SPI,
Microwire,
I2C, or what
If I offer a chip which doesn't meet the needs of your program, you'll have
to
change the program. If that's okay - fine - the answer is proably Jameco.
They
have all sorts of DIP SRAM. If you want to be more specific, I've got scads of
references and links, as well as datasheets, etc. I *WAS* just trying to save
us some time at MIDNITE last night ... hummm <sun's up already, g>.
Lemme know
Bruce
>> You haven't given all that much information in the way of exacting
>> specifications,
>> but I would expect Jameco might have what your seeking. Did either of you
>> expect
>> such a device to be Stamp compatable, or is this an OT request ?
>>
>> Regards,
>>
>> Bruce
>
>
>
>
>
>
or digi key had. It is for a stamp produt but it will eventually be ported
to a pic once it works so i need decent specs <100 ns seek, etc.
Maybe on another thought i am trying to share a 16 bit bus with a ide hard
drive ram and some other periphials. I thought it would work because only 1
device uses the bus at once and is in hiz the rest of the time. I tried it
with a 2k sram i had laying around and returns mostly garbage. Only a few
bytes get through undisturbed, using the hard drive or not. But connect it
directly it works fine. The only explanation i had was the 15 inch ide
cable was acting like an antenna.
How do i get it to source and sink more? The hard drive works fine and that
is connected to the cable.
Thanks
Mike
Original Message
From: "Bruce Bates" <bvbates@i...>
To: <basicstamps@egroups.com>
Sent: Saturday, April 22, 2000 1:56 AM
Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> At 12:19 AM 4/22/00 -0400, Ryan Pogge promulgated:
> >I am also looking for an SRAM chip...
> >I need something 256k-1meg 300ns or less is acceptable.
> >DIP is also preffered.
> >I have also tried mouser and digikey with no luck.
> >Ryan
> >
> >
> >> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg
preferred.
> >I
> >> have already tried mouser and digi key only to find that my order has
been
> >> permanently back ordered. I would like it to be dip so I can breadboard
> >with
> >> it. It seems like these are fading out of existence but my use is not.
> >>
> >> Does any one know of a place where I can purchase a 1 meg dip SRAM that
> >has
> >> it in stock?
> >>
> >> Thanks,
> >>
> >> btw the mouser parts were less than $3.00 so any suggestions would be
nice
> >> if there were within that range.
> >>
> >>
> Gents:
>
> You haven't given all that much information in the way of exacting
> specifications,
> but I would expect Jameco might have what your seeking. Did either of you
> expect
> such a device to be Stamp compatable, or is this an OT request ?
>
> Regards,
>
> Bruce
>
>
> >>
> >>
> >
> >
> >
> >
> >
>
>
>
>
and temp space to decode fat32. That is why im looking for a parallel and
because this is a prototype I would like to use dip to use in my breadboard.
The minimum transfer rate I can have is about 25 KB/s which is like 200,000
baud in serial so that may not be an option. I can read data from the drive
at about 200 KB/s and using this bandwidth would be helpful.
Thanks
Mike
Original Message
From: "Ryan Pogge" <rpogge@1...>
To: <basicstamps@egroups.com>
Sent: Saturday, April 22, 2000 2:06 AM
Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> Its for a PIC project .. picbasic pro... so I am sure It could be done
> with a stamp...well if a stamp had more I/O and memory :-)
> MP3 player actualy .. I need it for the buffer
>
> > You haven't given all that much information in the way of exacting
> > specifications,
> > but I would expect Jameco might have what your seeking. Did either of
you
> > expect
> > such a device to be Stamp compatable, or is this an OT request ?
> >
> > Regards,
> >
> > Bruce
>
>
>
>
>
>
>I tried jameco and they have a 512K for $13, not even close to what mouser
>or digi key had. It is for a stamp produt but it will eventually be ported
>to a pic once it works so i need decent specs <100 ns seek, etc.
>
>Maybe on another thought i am trying to share a 16 bit bus with a ide hard
>drive ram and some other periphials.
A shared bus is an animal, all unto itself. There are timing and connectivity
issues, along with buffering, etc. If you're looking for that kind of
processor,
you're into Intel, Zilog, Motorola, etc with ancillary peripheral abilities.
I haven't looked recently at the Scenix site, but I'd kinda doubt they have an
IDE (ATA) driver peripheral - yet. It's certainly worth a look [noparse][[/noparse]
www.scenix.com ]
and head for the virtual peripheral (VP) library.
Have fun with it though !
Bruce
I thought it would work because only 1
>device uses the bus at once and is in hiz the rest of the time. I tried it
>with a 2k sram i had laying around and returns mostly garbage. Only a few
>bytes get through undisturbed, using the hard drive or not. But connect it
>directly it works fine. The only explanation i had was the 15 inch ide
>cable was acting like an antenna.
>
>How do i get it to source and sink more? The hard drive works fine and that
>is connected to the cable.
>
>Thanks
>Mike
>
Original Message
>From: "Bruce Bates" <bvbates@i...>
>To: <basicstamps@egroups.com>
>Sent: Saturday, April 22, 2000 1:56 AM
>Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
>
>
>> At 12:19 AM 4/22/00 -0400, Ryan Pogge promulgated:
>> >I am also looking for an SRAM chip...
>> >I need something 256k-1meg 300ns or less is acceptable.
>> >DIP is also preffered.
>> >I have also tried mouser and digikey with no luck.
>> >Ryan
>> >
>> >
>> >> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg
>preferred.
>> >I
>> >> have already tried mouser and digi key only to find that my order has
>been
>> >> permanently back ordered. I would like it to be dip so I can breadboard
>> >with
>> >> it. It seems like these are fading out of existence but my use is not.
>> >>
>> >> Does any one know of a place where I can purchase a 1 meg dip SRAM that
>> >has
>> >> it in stock?
>> >>
>> >> Thanks,
>> >>
>> >> btw the mouser parts were less than $3.00 so any suggestions would be
>nice
>> >> if there were within that range.
>> >>
>> >>
>> Gents:
>>
>> You haven't given all that much information in the way of exacting
>> specifications,
>> but I would expect Jameco might have what your seeking. Did either of you
>> expect
>> such a device to be Stamp compatable, or is this an OT request ?
>>
>> Regards,
>>
>> Bruce
>>
>>
>> >>
>> >>
>> >
>> >
>> >
>> >
>> >
>>
>>
>>
>>
>
>
>
>
>
yep parallel, again 16 bit bus...
> If I offer a chip which doesn't meet the needs of your program, you'll
have
> to
> change the program.
hey I can do that.!
Ryan
> I tried jameco and they have a 512K for $13, not even close to what mouser
> or digi key had. It is for a stamp produt but it will eventually be
ported
> to a pic once it works so i need decent specs <100 ns seek, etc.
> Maybe on another thought i am trying to share a 16 bit bus with a ide hard
> drive ram and some other periphials. I thought it would work because only
1
> device uses the bus at once and is in hiz the rest of the time. I tried
it
> with a 2k sram i had laying around and returns mostly garbage. Only a few
> bytes get through undisturbed, using the hard drive or not. But connect it
> directly it works fine. The only explanation i had was the 15 inch ide
> cable was acting like an antenna.
hmm I didnt have that problem... I cut an ide cable down to about 4 inches
for mine...
try that , although i doubt thats what is causeing it.
> How do i get it to source and sink more? The hard drive works fine and
that
> is connected to the cable.
u think that would work?
"You think thats air your breathing now?"
Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> At 09:49 AM 4/22/00 -0400, Michael Licitra promulgated:
> >I tried jameco and they have a 512K for $13, not even close to what
mouser
> >or digi key had. It is for a stamp produt but it will eventually be
ported
> >to a pic once it works so i need decent specs <100 ns seek, etc.
> >
> >Maybe on another thought i am trying to share a 16 bit bus with a ide
hard
> >drive ram and some other periphials.
>
> A shared bus is an animal, all unto itself. There are timing and
connectivity
> issues, along with buffering, etc. If you're looking for that kind of
> processor,
> you're into Intel, Zilog, Motorola, etc with ancillary peripheral
abilities.
> I haven't looked recently at the Scenix site, but I'd kinda doubt they
have an
> IDE (ATA) driver peripheral - yet. It's certainly worth a look [noparse][[/noparse]
> www.scenix.com ]
> and head for the virtual peripheral (VP) library.
>
> Have fun with it though !
>
> Bruce
>
>
> I thought it would work because only 1
> >device uses the bus at once and is in hiz the rest of the time. I tried
it
> >with a 2k sram i had laying around and returns mostly garbage. Only a
few
> >bytes get through undisturbed, using the hard drive or not. But connect
it
> >directly it works fine. The only explanation i had was the 15 inch ide
> >cable was acting like an antenna.
> >
> >How do i get it to source and sink more? The hard drive works fine and
that
> >is connected to the cable.
> >
> >Thanks
> >Mike
> >
Original Message
> >From: "Bruce Bates" <bvbates@i...>
> >To: <basicstamps@egroups.com>
> >Sent: Saturday, April 22, 2000 1:56 AM
> >Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> >
> >
> >> At 12:19 AM 4/22/00 -0400, Ryan Pogge promulgated:
> >> >I am also looking for an SRAM chip...
> >> >I need something 256k-1meg 300ns or less is acceptable.
> >> >DIP is also preffered.
> >> >I have also tried mouser and digikey with no luck.
> >> >Ryan
> >> >
> >> >
> >> >> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg
> >preferred.
> >> >I
> >> >> have already tried mouser and digi key only to find that my order
has
> >been
> >> >> permanently back ordered. I would like it to be dip so I can
breadboard
> >> >with
> >> >> it. It seems like these are fading out of existence but my use is
not.
> >> >>
> >> >> Does any one know of a place where I can purchase a 1 meg dip SRAM
that
> >> >has
> >> >> it in stock?
> >> >>
> >> >> Thanks,
> >> >>
> >> >> btw the mouser parts were less than $3.00 so any suggestions would
be
> >nice
> >> >> if there were within that range.
> >> >>
> >> >>
> >> Gents:
> >>
> >> You haven't given all that much information in the way of exacting
> >> specifications,
> >> but I would expect Jameco might have what your seeking. Did either of
you
> >> expect
> >> such a device to be Stamp compatable, or is this an OT request ?
> >>
> >> Regards,
> >>
> >> Bruce
> >>
> >>
> >> >>
> >> >>
> >> >
> >> >
> >> >
> >> >
> >> >
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
>
>
>
is, or a pin out?
Thanks
Original Message
From: "Ryan Pogge" <rpogge@1...>
To: <basicstamps@egroups.com>
Sent: Sunday, April 23, 2000 1:51 AM
Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> how about just useing an old 30 pin SIMM?
> u think that would work?
>
> "You think thats air your breathing now?"
>
> Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
>
>
> > At 09:49 AM 4/22/00 -0400, Michael Licitra promulgated:
> > >I tried jameco and they have a 512K for $13, not even close to what
> mouser
> > >or digi key had. It is for a stamp produt but it will eventually be
> ported
> > >to a pic once it works so i need decent specs <100 ns seek, etc.
> > >
> > >Maybe on another thought i am trying to share a 16 bit bus with a ide
> hard
> > >drive ram and some other periphials.
> >
> > A shared bus is an animal, all unto itself. There are timing and
> connectivity
> > issues, along with buffering, etc. If you're looking for that kind of
> > processor,
> > you're into Intel, Zilog, Motorola, etc with ancillary peripheral
> abilities.
> > I haven't looked recently at the Scenix site, but I'd kinda doubt they
> have an
> > IDE (ATA) driver peripheral - yet. It's certainly worth a look [noparse][[/noparse]
> > www.scenix.com ]
> > and head for the virtual peripheral (VP) library.
> >
> > Have fun with it though !
> >
> > Bruce
> >
> >
> > I thought it would work because only 1
> > >device uses the bus at once and is in hiz the rest of the time. I
tried
> it
> > >with a 2k sram i had laying around and returns mostly garbage. Only a
> few
> > >bytes get through undisturbed, using the hard drive or not. But connect
> it
> > >directly it works fine. The only explanation i had was the 15 inch ide
> > >cable was acting like an antenna.
> > >
> > >How do i get it to source and sink more? The hard drive works fine and
> that
> > >is connected to the cable.
> > >
> > >Thanks
> > >Mike
> > >
Original Message
> > >From: "Bruce Bates" <bvbates@i...>
> > >To: <basicstamps@egroups.com>
> > >Sent: Saturday, April 22, 2000 1:56 AM
> > >Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> > >
> > >
> > >> At 12:19 AM 4/22/00 -0400, Ryan Pogge promulgated:
> > >> >I am also looking for an SRAM chip...
> > >> >I need something 256k-1meg 300ns or less is acceptable.
> > >> >DIP is also preffered.
> > >> >I have also tried mouser and digikey with no luck.
> > >> >Ryan
> > >> >
> > >> >
> > >> >> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg
> > >preferred.
> > >> >I
> > >> >> have already tried mouser and digi key only to find that my order
> has
> > >been
> > >> >> permanently back ordered. I would like it to be dip so I can
> breadboard
> > >> >with
> > >> >> it. It seems like these are fading out of existence but my use is
> not.
> > >> >>
> > >> >> Does any one know of a place where I can purchase a 1 meg dip SRAM
> that
> > >> >has
> > >> >> it in stock?
> > >> >>
> > >> >> Thanks,
> > >> >>
> > >> >> btw the mouser parts were less than $3.00 so any suggestions would
> be
> > >nice
> > >> >> if there were within that range.
> > >> >>
> > >> >>
> > >> Gents:
> > >>
> > >> You haven't given all that much information in the way of exacting
> > >> specifications,
> > >> but I would expect Jameco might have what your seeking. Did either of
> you
> > >> expect
> > >> such a device to be Stamp compatable, or is this an OT request ?
> > >>
> > >> Regards,
> > >>
> > >> Bruce
> > >>
> > >>
> > >> >>
> > >> >>
> > >> >
> > >> >
> > >> >
> > >> >
> > >> >
> > >>
> > >>
> > >>
> > >>
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
>
>
>
>
>
algorithms to the best of my knowledge.
Regards,
Al Williams
AWC
*Connect a PS/2 keyboard to your Stamp, PIC, SX, or other microcontroller
project: http://www.al-williams.com/awce/pak6.htm
>
Original Message
> From: Michael Licitra [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=iLjr6vwGEyjJP3Vf-PEXkjyYaMJ1ORc1QrsR_Wig9S6bChEgAZwW7V3jy7fuwJcDJ0caDDcBwOc]mikel2@b...[/url
> Sent: Sunday, April 23, 2000 9:39 AM
> To: basicstamps@egroups.com
> Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
>
>
> That is a good idea, I never considered it. Do you know what
> type of ram it
> is, or a pin out?
>
> Thanks
>
Original Message
> From: "Ryan Pogge" <rpogge@1...>
> To: <basicstamps@egroups.com>
> Sent: Sunday, April 23, 2000 1:51 AM
> Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
>
>
> > how about just useing an old 30 pin SIMM?
> > u think that would work?
> >
> > "You think thats air your breathing now?"
> >
> > Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> >
> >
> > > At 09:49 AM 4/22/00 -0400, Michael Licitra promulgated:
> > > >I tried jameco and they have a 512K for $13, not even close to what
> > mouser
> > > >or digi key had. It is for a stamp produt but it will eventually be
> > ported
> > > >to a pic once it works so i need decent specs <100 ns seek, etc.
> > > >
> > > >Maybe on another thought i am trying to share a 16 bit bus with a ide
> > hard
> > > >drive ram and some other periphials.
> > >
> > > A shared bus is an animal, all unto itself. There are timing and
> > connectivity
> > > issues, along with buffering, etc. If you're looking for that kind of
> > > processor,
> > > you're into Intel, Zilog, Motorola, etc with ancillary peripheral
> > abilities.
> > > I haven't looked recently at the Scenix site, but I'd kinda doubt they
> > have an
> > > IDE (ATA) driver peripheral - yet. It's certainly worth a look [noparse][[/noparse]
> > > www.scenix.com ]
> > > and head for the virtual peripheral (VP) library.
> > >
> > > Have fun with it though !
> > >
> > > Bruce
> > >
> > >
> > > I thought it would work because only 1
> > > >device uses the bus at once and is in hiz the rest of the time. I
> tried
> > it
> > > >with a 2k sram i had laying around and returns mostly
> garbage. Only a
> > few
> > > >bytes get through undisturbed, using the hard drive or not.
> But connect
> > it
> > > >directly it works fine. The only explanation i had was the
> 15 inch ide
> > > >cable was acting like an antenna.
> > > >
> > > >How do i get it to source and sink more? The hard drive
> works fine and
> > that
> > > >is connected to the cable.
> > > >
> > > >Thanks
> > > >Mike
> > > >
Original Message
> > > >From: "Bruce Bates" <bvbates@i...>
> > > >To: <basicstamps@egroups.com>
> > > >Sent: Saturday, April 22, 2000 1:56 AM
> > > >Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> > > >
> > > >
> > > >> At 12:19 AM 4/22/00 -0400, Ryan Pogge promulgated:
> > > >> >I am also looking for an SRAM chip...
> > > >> >I need something 256k-1meg 300ns or less is acceptable.
> > > >> >DIP is also preffered.
> > > >> >I have also tried mouser and digikey with no luck.
> > > >> >Ryan
> > > >> >
> > > >> >
> > > >> >> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg
> > > >preferred.
> > > >> >I
> > > >> >> have already tried mouser and digi key only to find
> that my order
> > has
> > > >been
> > > >> >> permanently back ordered. I would like it to be dip so I can
> > breadboard
> > > >> >with
> > > >> >> it. It seems like these are fading out of existence
> but my use is
> > not.
> > > >> >>
> > > >> >> Does any one know of a place where I can purchase a 1
> meg dip SRAM
> > that
> > > >> >has
> > > >> >> it in stock?
> > > >> >>
> > > >> >> Thanks,
> > > >> >>
> > > >> >> btw the mouser parts were less than $3.00 so any
> suggestions would
> > be
> > > >nice
> > > >> >> if there were within that range.
> > > >> >>
> > > >> >>
> > > >> Gents:
> > > >>
> > > >> You haven't given all that much information in the way of exacting
> > > >> specifications,
> > > >> but I would expect Jameco might have what your seeking.
> Did either of
> > you
> > > >> expect
> > > >> such a device to be Stamp compatable, or is this an OT request ?
> > > >>
> > > >> Regards,
> > > >>
> > > >> Bruce
> > > >>
> > > >>
> > > >> >>
> > > >> >>
> > > >> >
> > > >> >
> > > >> >
> > > >> >
> > > >> >
> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
>
>
>
"You think thats air your breathing now?"
> That is a good idea, I never considered it. Do you know what type of ram
it
> is, or a pin out?
>
> Thanks
>
Original Message
> From: "Ryan Pogge" <rpogge@1...>
> To: <basicstamps@egroups.com>
> Sent: Sunday, April 23, 2000 1:51 AM
> Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
>
>
> > how about just useing an old 30 pin SIMM?
> > u think that would work?
> >
> > "You think thats air your breathing now?"
> >
> > Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> >
> >
> > > At 09:49 AM 4/22/00 -0400, Michael Licitra promulgated:
> > > >I tried jameco and they have a 512K for $13, not even close to what
> > mouser
> > > >or digi key had. It is for a stamp produt but it will eventually be
> > ported
> > > >to a pic once it works so i need decent specs <100 ns seek, etc.
> > > >
> > > >Maybe on another thought i am trying to share a 16 bit bus with a ide
> > hard
> > > >drive ram and some other periphials.
> > >
> > > A shared bus is an animal, all unto itself. There are timing and
> > connectivity
> > > issues, along with buffering, etc. If you're looking for that kind of
> > > processor,
> > > you're into Intel, Zilog, Motorola, etc with ancillary peripheral
> > abilities.
> > > I haven't looked recently at the Scenix site, but I'd kinda doubt they
> > have an
> > > IDE (ATA) driver peripheral - yet. It's certainly worth a look [noparse][[/noparse]
> > > www.scenix.com ]
> > > and head for the virtual peripheral (VP) library.
> > >
> > > Have fun with it though !
> > >
> > > Bruce
> > >
> > >
> > > I thought it would work because only 1
> > > >device uses the bus at once and is in hiz the rest of the time. I
> tried
> > it
> > > >with a 2k sram i had laying around and returns mostly garbage. Only
a
> > few
> > > >bytes get through undisturbed, using the hard drive or not. But
connect
> > it
> > > >directly it works fine. The only explanation i had was the 15 inch
ide
> > > >cable was acting like an antenna.
> > > >
> > > >How do i get it to source and sink more? The hard drive works fine
and
> > that
> > > >is connected to the cable.
> > > >
> > > >Thanks
> > > >Mike
> > > >
Original Message
> > > >From: "Bruce Bates" <bvbates@i...>
> > > >To: <basicstamps@egroups.com>
> > > >Sent: Saturday, April 22, 2000 1:56 AM
> > > >Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> > > >
> > > >
> > > >> At 12:19 AM 4/22/00 -0400, Ryan Pogge promulgated:
> > > >> >I am also looking for an SRAM chip...
> > > >> >I need something 256k-1meg 300ns or less is acceptable.
> > > >> >DIP is also preffered.
> > > >> >I have also tried mouser and digikey with no luck.
> > > >> >Ryan
> > > >> >
> > > >> >
> > > >> >> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg
> > > >preferred.
> > > >> >I
> > > >> >> have already tried mouser and digi key only to find that my
order
> > has
> > > >been
> > > >> >> permanently back ordered. I would like it to be dip so I can
> > breadboard
> > > >> >with
> > > >> >> it. It seems like these are fading out of existence but my use
is
> > not.
> > > >> >>
> > > >> >> Does any one know of a place where I can purchase a 1 meg dip
SRAM
> > that
> > > >> >has
> > > >> >> it in stock?
> > > >> >>
> > > >> >> Thanks,
> > > >> >>
> > > >> >> btw the mouser parts were less than $3.00 so any suggestions
would
> > be
> > > >nice
> > > >> >> if there were within that range.
> > > >> >>
> > > >> >>
> > > >> Gents:
> > > >>
> > > >> You haven't given all that much information in the way of exacting
> > > >> specifications,
> > > >> but I would expect Jameco might have what your seeking. Did either
of
> > you
> > > >> expect
> > > >> such a device to be Stamp compatable, or is this an OT request ?
> > > >>
> > > >> Regards,
> > > >>
> > > >> Bruce
> > > >>
> > > >>
> > > >> >>
> > > >> >>
> > > >> >
> > > >> >
> > > >> >
> > > >> >
> > > >> >
> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
>
>
>
>
"You think thats air your breathing now?"
> Garden variety SIMMs are dynamic RAM and require sophisticated refresh
> algorithms to the best of my knowledge.
>
> Regards,
>
> Al Williams
> AWC
> *Connect a PS/2 keyboard to your Stamp, PIC, SX, or other microcontroller
> project: http://www.al-williams.com/awce/pak6.htm
>
>
> >
Original Message
> > From: Michael Licitra [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=uX7-IeF7PwYszNBpbHTCz_i4JOywdChnywBkwXvOp34ioE8h9qSGuK9Mt8J1XXUmTyXYgpaTnY2_]mikel2@b...[/url
> > Sent: Sunday, April 23, 2000 9:39 AM
> > To: basicstamps@egroups.com
> > Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> >
> >
> > That is a good idea, I never considered it. Do you know what
> > type of ram it
> > is, or a pin out?
> >
> > Thanks
> >
Original Message
> > From: "Ryan Pogge" <rpogge@1...>
> > To: <basicstamps@egroups.com>
> > Sent: Sunday, April 23, 2000 1:51 AM
> > Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> >
> >
> > > how about just useing an old 30 pin SIMM?
> > > u think that would work?
> > >
> > > "You think thats air your breathing now?"
> > >
> > > Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> > >
> > >
> > > > At 09:49 AM 4/22/00 -0400, Michael Licitra promulgated:
> > > > >I tried jameco and they have a 512K for $13, not even close to what
> > > mouser
> > > > >or digi key had. It is for a stamp produt but it will eventually
be
> > > ported
> > > > >to a pic once it works so i need decent specs <100 ns seek, etc.
> > > > >
> > > > >Maybe on another thought i am trying to share a 16 bit bus with a
ide
> > > hard
> > > > >drive ram and some other periphials.
> > > >
> > > > A shared bus is an animal, all unto itself. There are timing and
> > > connectivity
> > > > issues, along with buffering, etc. If you're looking for that kind
of
> > > > processor,
> > > > you're into Intel, Zilog, Motorola, etc with ancillary peripheral
> > > abilities.
> > > > I haven't looked recently at the Scenix site, but I'd kinda doubt
they
> > > have an
> > > > IDE (ATA) driver peripheral - yet. It's certainly worth a look [noparse][[/noparse]
> > > > www.scenix.com ]
> > > > and head for the virtual peripheral (VP) library.
> > > >
> > > > Have fun with it though !
> > > >
> > > > Bruce
> > > >
> > > >
> > > > I thought it would work because only 1
> > > > >device uses the bus at once and is in hiz the rest of the time. I
> > tried
> > > it
> > > > >with a 2k sram i had laying around and returns mostly
> > garbage. Only a
> > > few
> > > > >bytes get through undisturbed, using the hard drive or not.
> > But connect
> > > it
> > > > >directly it works fine. The only explanation i had was the
> > 15 inch ide
> > > > >cable was acting like an antenna.
> > > > >
> > > > >How do i get it to source and sink more? The hard drive
> > works fine and
> > > that
> > > > >is connected to the cable.
> > > > >
> > > > >Thanks
> > > > >Mike
> > > > >
Original Message
> > > > >From: "Bruce Bates" <bvbates@i...>
> > > > >To: <basicstamps@egroups.com>
> > > > >Sent: Saturday, April 22, 2000 1:56 AM
> > > > >Subject: Re: [noparse][[/noparse]basicstamps] Static Ram Source
> > > > >
> > > > >
> > > > >> At 12:19 AM 4/22/00 -0400, Ryan Pogge promulgated:
> > > > >> >I am also looking for an SRAM chip...
> > > > >> >I need something 256k-1meg 300ns or less is acceptable.
> > > > >> >DIP is also preffered.
> > > > >> >I have also tried mouser and digikey with no luck.
> > > > >> >Ryan
> > > > >> >
> > > > >> >
> > > > >> >> Hi, I am looking for a place to buy a 512 - 4 meg SRAM. 1 meg
> > > > >preferred.
> > > > >> >I
> > > > >> >> have already tried mouser and digi key only to find
> > that my order
> > > has
> > > > >been
> > > > >> >> permanently back ordered. I would like it to be dip so I can
> > > breadboard
> > > > >> >with
> > > > >> >> it. It seems like these are fading out of existence
> > but my use is
> > > not.
> > > > >> >>
> > > > >> >> Does any one know of a place where I can purchase a 1
> > meg dip SRAM
> > > that
> > > > >> >has
> > > > >> >> it in stock?
> > > > >> >>
> > > > >> >> Thanks,
> > > > >> >>
> > > > >> >> btw the mouser parts were less than $3.00 so any
> > suggestions would
> > > be
> > > > >nice
> > > > >> >> if there were within that range.
> > > > >> >>
> > > > >> >>
> > > > >> Gents:
> > > > >>
> > > > >> You haven't given all that much information in the way of
exacting
> > > > >> specifications,
> > > > >> but I would expect Jameco might have what your seeking.
> > Did either of
> > > you
> > > > >> expect
> > > > >> such a device to be Stamp compatable, or is this an OT request ?
> > > > >>
> > > > >> Regards,
> > > > >>
> > > > >> Bruce
> > > > >>
> > > > >>
> > > > >> >>
> > > > >> >>
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >>
> > > > >>
> > > > >>
> > > > >>
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
>
>
>
>
socketed cyrus CY7C199 SRAM chips 256K
YAY!
Ryan
> >I tried jameco and they have a 512K for $13, not even close to what
mouser
> >or digi key had. It is for a stamp produt but it will eventually be
ported
> >to a pic once it works so i need decent specs <100 ns seek, etc.
> >> >I am also looking for an SRAM chip...
> >> >I need something 256k-1meg 300ns or less is acceptable.
> >> >DIP is also preffered.
> >> >I have also tried mouser and digikey with no luck.
> >> >Ryan