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Is there any common IC chip that can be used as buffer? — Parallax Forums

Is there any common IC chip that can be used as buffer?

ArchiverArchiver Posts: 46,084
edited 2004-07-20 20:09 in General Discussion
Am wondering if there is any IC chip that I can use as a buffer. Not
having a buffer is a real pain in the tuckus for my project. Any
comment would be greatly appreciated.
Eric

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 01:29
    For a buffer, I have used the 74LC244 & 74LC245 for projects not involving
    the Stamp - I really don't know why they wouldn't work with the Stamp and I
    will probably try one or both at some point.
    Original Message
    From: Eric Berg [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=MIflFwzkqutwP0GtNXaO0wylKi5Qi1fiokYTBSm0mnB3T5lL1eKF9Ejv4nlOD124Q72NdUMdBms]khufumen@y...[/url
    Sent: Monday, July 19, 2004 5:25 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be used as
    buffer?


    Am wondering if there is any IC chip that I can use as a buffer. Not
    having a buffer is a real pain in the tuckus for my project. Any
    comment would be greatly appreciated.
    Eric



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  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 01:39
    Can't find those chips at Newark or Digikey. Are you certain about
    the spelling?
    Eric

    --- In basicstamps@yahoogroups.com, "BH" <okay_2@c...> wrote:
    > For a buffer, I have used the 74LC244 & 74LC245 for projects not
    involving
    > the Stamp - I really don't know why they wouldn't work with the
    Stamp and I
    > will probably try one or both at some point.
    >
    >
    Original Message
    > From: Eric Berg [noparse][[/noparse]mailto:khufumen@y...]
    > Sent: Monday, July 19, 2004 5:25 PM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be
    used as
    > buffer?
    >
    >
    > Am wondering if there is any IC chip that I can use as a buffer.
    Not
    > having a buffer is a real pain in the tuckus for my project. Any
    > comment would be greatly appreciated.
    > Eric
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the
    Subject and
    > Body of the message will be ignored.
    >
    > Yahoo! Groups Links
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 01:51
    Whoops!!! What I meant was 74LS244 or 74LS245, (must have had a senior
    moment), sorry.
    Original Message
    From: Eric Berg [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=NxQyBWejbctrMofV3lgpoakJrELk403OBVkICoYkfZoaKmMiM18MuvHexGO4X-Bhc1ySRSpnlOIq8A]khufumen@y...[/url
    Sent: Monday, July 19, 2004 5:40 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Re: Is there any common IC chip that can be used
    as buffer?


    Can't find those chips at Newark or Digikey. Are you certain about
    the spelling?
    Eric

    --- In basicstamps@yahoogroups.com, "BH" <okay_2@c...> wrote:
    > For a buffer, I have used the 74LC244 & 74LC245 for projects not
    involving
    > the Stamp - I really don't know why they wouldn't work with the
    Stamp and I
    > will probably try one or both at some point.
    >
    >
    Original Message
    > From: Eric Berg [noparse][[/noparse]mailto:khufumen@y...]
    > Sent: Monday, July 19, 2004 5:25 PM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be
    used as
    > buffer?
    >
    >
    > Am wondering if there is any IC chip that I can use as a buffer.
    Not
    > having a buffer is a real pain in the tuckus for my project. Any
    > comment would be greatly appreciated.
    > Eric
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the
    Subject and
    > Body of the message will be ignored.
    >
    > Yahoo! Groups Links



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  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 02:30
    I should have said a data buffer for holding a couple
    of bytes of data coming in over the serial port.
    Eric


    --- BH <okay_2@c...> wrote:
    > Whoops!!! What I meant was 74LS244 or 74LS245,
    > (must have had a senior
    > moment), sorry.
    >
    >
    Original Message
    > From: Eric Berg [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=6VJ-RkqDXbwHrelbiUiKjcHmS-IQz8SYp_pU3iYkxcR4h33Ypeo2Q1TUDJXIWX8xxsuuov0b674N6ieg]khufumen@y...[/url
    > Sent: Monday, July 19, 2004 5:40 PM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Re: Is there any common IC
    > chip that can be used
    > as buffer?
    >
    >
    > Can't find those chips at Newark or Digikey. Are you
    > certain about
    > the spelling?
    > Eric
    >
    > --- In basicstamps@yahoogroups.com, "BH"
    > <okay_2@c...> wrote:
    > > For a buffer, I have used the 74LC244 & 74LC245
    > for projects not
    > involving
    > > the Stamp - I really don't know why they wouldn't
    > work with the
    > Stamp and I
    > > will probably try one or both at some point.
    > >
    > >
    Original Message
    > > From: Eric Berg [noparse][[/noparse]mailto:khufumen@y...]
    > > Sent: Monday, July 19, 2004 5:25 PM
    > > To: basicstamps@yahoogroups.com
    > > Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip
    > that can be
    > used as
    > > buffer?
    > >
    > >
    > > Am wondering if there is any IC chip that I can
    > use as a buffer.
    > Not
    > > having a buffer is a real pain in the tuckus for
    > my project. Any
    > > comment would be greatly appreciated.
    > > Eric
    > >
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed.
    > Text in the
    > Subject and
    > > Body of the message will be ignored.
    > >
    > > Yahoo! Groups Links
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
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    >
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    >
    >
    >
    >
    >
    >
    >
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    >
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  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 02:31
    Hi Eric:

    I am not sure what you are referring to as far as a buffer. Do you mean a
    Serial Buffer ?? or are you referring to some chip to drive an output and
    isolate it from the stamp? If you are referring to a Serial Buffer there
    is a great one made by S Parks and all the info for it's construction is in
    the files section of this site. This ia a 1K PIC based serial buffer that
    is really neat and works great.

    Another Eric
    Original Message
    From: "Eric Berg" <khufumen@y...>
    To: <basicstamps@yahoogroups.com>
    Sent: Monday, July 19, 2004 8:25 PM
    Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be used as
    buffer?


    > Am wondering if there is any IC chip that I can use as a buffer. Not
    > having a buffer is a real pain in the tuckus for my project. Any
    > comment would be greatly appreciated.
    > Eric
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    > Yahoo! Groups Links
    >
    >
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 03:06
    Eric,
    Yes, I'm looking for a serial buffer. I looked under the files
    section and saw a text file for a serial buffer saying to refer to
    Peter H. Anderson's web site for purchasing. When I went to the web
    site I did not find the pic in question. Any help you can offer?
    Eric

    --- In basicstamps@yahoogroups.com, "Eric Adams" <hugs102@b...>
    wrote:
    > Hi Eric:
    >
    > I am not sure what you are referring to as far as a buffer. Do
    you mean a
    > Serial Buffer ?? or are you referring to some chip to drive an
    output and
    > isolate it from the stamp? If you are referring to a Serial
    Buffer there
    > is a great one made by S Parks and all the info for it's
    construction is in
    > the files section of this site. This ia a 1K PIC based serial
    buffer that
    > is really neat and works great.
    >
    > Another Eric
    >
    Original Message
    > From: "Eric Berg" <khufumen@y...>
    > To: <basicstamps@yahoogroups.com>
    > Sent: Monday, July 19, 2004 8:25 PM
    > Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be
    used as
    > buffer?
    >
    >
    > > Am wondering if there is any IC chip that I can use as a buffer.
    Not
    > > having a buffer is a real pain in the tuckus for my project. Any
    > > comment would be greatly appreciated.
    > > Eric
    > >
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the
    Subject and
    > Body of the message will be ignored.
    > >
    > > Yahoo! Groups Links
    > >
    > >
    > >
    > >
    > >
    > >
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 03:48
    At 06:29 PM 7/19/2004, BH wrote:
    >For a buffer, I have used the 74LC244 & 74LC245 for projects not involving
    >the Stamp - I really don't know why they wouldn't work with the Stamp and I
    >will probably try one or both at some point.

    I'm guessing that you mean "HC" or "LS" rather than "LC" in the above part
    numbers. Of the two, the HC parts are better for just about all
    situations. Much lower current consumption and about double the output
    drive capability than the "LS" parts.

    dwayne

    --
    Dwayne Reid <dwayner@p...>
    Trinity Electronics Systems Ltd Edmonton, AB, CANADA
    (780) 489-3199 voice (780) 487-6397 fax

    Celebrating 20 years of Engineering Innovation (1984 - 2004)
    .-. .-. .-. .-. .-. .-. .-. .-. .-. .-
    `-' `-' `-' `-' `-' `-' `-' `-' `-'
    Do NOT send unsolicited commercial email to this email address.
    This message neither grants consent to receive unsolicited
    commercial email nor is intended to solicit commercial email.
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 04:20
    It has been quite a while since I built anything of consequence so it is
    good to hear about the "HC" line. I have seen the "HC" part numbers but I
    guess I was just stuck in a rut. I appreciate your input...
    Original Message
    From: Dwayne Reid [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=YS8Fy71hMUkKeKE-xmzuSQZemJXVCpPK5674BFXojugDED8HaD4hfUv2Ec-SHQHQbG-evLd2Bn9qQzbrPNM]dwayner@p...[/url
    Sent: Monday, July 19, 2004 7:49 PM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be used
    as buffer?


    At 06:29 PM 7/19/2004, BH wrote:
    >For a buffer, I have used the 74LC244 & 74LC245 for projects not involving
    >the Stamp - I really don't know why they wouldn't work with the Stamp and I
    >will probably try one or both at some point.

    I'm guessing that you mean "HC" or "LS" rather than "LC" in the above part
    numbers. Of the two, the HC parts are better for just about all
    situations. Much lower current consumption and about double the output
    drive capability than the "LS" parts.

    dwayne

    --
    Dwayne Reid <dwayner@p...>
    Trinity Electronics Systems Ltd Edmonton, AB, CANADA
    (780) 489-3199 voice (780) 487-6397 fax

    Celebrating 20 years of Engineering Innovation (1984 - 2004)
    .-. .-. .-. .-. .-. .-. .-. .-. .-. .-
    `-' `-' `-' `-' `-' `-' `-' `-' `-'
    Do NOT send unsolicited commercial email to this email address.
    This message neither grants consent to receive unsolicited
    commercial email nor is intended to solicit commercial email.



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  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 04:26
    The serial buffer was designed by S Parkis and was put in the file system
    some time last year. Check further if you cannot find it then let me know
    it is really neat. Steve is a regular on this site and always has some great
    info.

    Eric A

    Original Message
    From: "Eric Berg" <khufumen@y...>
    To: <basicstamps@yahoogroups.com>
    Sent: Monday, July 19, 2004 10:06 PM
    Subject: [noparse][[/noparse]basicstamps] Re: Is there any common IC chip that can be used as
    buffer?


    > Eric,
    > Yes, I'm looking for a serial buffer. I looked under the files
    > section and saw a text file for a serial buffer saying to refer to
    > Peter H. Anderson's web site for purchasing. When I went to the web
    > site I did not find the pic in question. Any help you can offer?
    > Eric
    >
    > --- In basicstamps@yahoogroups.com, "Eric Adams" <hugs102@b...>
    > wrote:
    > > Hi Eric:
    > >
    > > I am not sure what you are referring to as far as a buffer. Do
    > you mean a
    > > Serial Buffer ?? or are you referring to some chip to drive an
    > output and
    > > isolate it from the stamp? If you are referring to a Serial
    > Buffer there
    > > is a great one made by S Parks and all the info for it's
    > construction is in
    > > the files section of this site. This ia a 1K PIC based serial
    > buffer that
    > > is really neat and works great.
    > >
    > > Another Eric
    > >
    Original Message
    > > From: "Eric Berg" <khufumen@y...>
    > > To: <basicstamps@yahoogroups.com>
    > > Sent: Monday, July 19, 2004 8:25 PM
    > > Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be
    > used as
    > > buffer?
    > >
    > >
    > > > Am wondering if there is any IC chip that I can use as a buffer.
    > Not
    > > > having a buffer is a real pain in the tuckus for my project. Any
    > > > comment would be greatly appreciated.
    > > > Eric
    > > >
    > > >
    > > >
    > > > To UNSUBSCRIBE, just send mail to:
    > > > basicstamps-unsubscribe@yahoogroups.com
    > > > from the same email address that you subscribed. Text in the
    > Subject and
    > > Body of the message will be ignored.
    > > >
    > > > Yahoo! Groups Links
    > > >
    > > >
    > > >
    > > >
    > > >
    > > >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
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  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 04:36
    The file is files/buffer.txt by steve_in_nevada

    Original Message
    From: "Eric Adams" <hugs102@b...>
    To: <basicstamps@yahoogroups.com>
    Sent: Monday, July 19, 2004 11:26 PM
    Subject: Re: [noparse][[/noparse]basicstamps] Re: Is there any common IC chip that can be used
    as buffer?


    > The serial buffer was designed by S Parkis and was put in the file system
    > some time last year. Check further if you cannot find it then let me know
    > it is really neat. Steve is a regular on this site and always has some
    great
    > info.
    >
    > Eric A
    >
    >
    >
    Original Message
    > From: "Eric Berg" <khufumen@y...>
    > To: <basicstamps@yahoogroups.com>
    > Sent: Monday, July 19, 2004 10:06 PM
    > Subject: [noparse][[/noparse]basicstamps] Re: Is there any common IC chip that can be used as
    > buffer?
    >
    >
    > > Eric,
    > > Yes, I'm looking for a serial buffer. I looked under the files
    > > section and saw a text file for a serial buffer saying to refer to
    > > Peter H. Anderson's web site for purchasing. When I went to the web
    > > site I did not find the pic in question. Any help you can offer?
    > > Eric
    > >
    > > --- In basicstamps@yahoogroups.com, "Eric Adams" <hugs102@b...>
    > > wrote:
    > > > Hi Eric:
    > > >
    > > > I am not sure what you are referring to as far as a buffer. Do
    > > you mean a
    > > > Serial Buffer ?? or are you referring to some chip to drive an
    > > output and
    > > > isolate it from the stamp? If you are referring to a Serial
    > > Buffer there
    > > > is a great one made by S Parks and all the info for it's
    > > construction is in
    > > > the files section of this site. This ia a 1K PIC based serial
    > > buffer that
    > > > is really neat and works great.
    > > >
    > > > Another Eric
    > > >
    Original Message
    > > > From: "Eric Berg" <khufumen@y...>
    > > > To: <basicstamps@yahoogroups.com>
    > > > Sent: Monday, July 19, 2004 8:25 PM
    > > > Subject: [noparse][[/noparse]basicstamps] Is there any common IC chip that can be
    > > used as
    > > > buffer?
    > > >
    > > >
    > > > > Am wondering if there is any IC chip that I can use as a buffer.
    > > Not
    > > > > having a buffer is a real pain in the tuckus for my project. Any
    > > > > comment would be greatly appreciated.
    > > > > Eric
    > > > >
    > > > >
    > > > >
    > > > > To UNSUBSCRIBE, just send mail to:
    > > > > basicstamps-unsubscribe@yahoogroups.com
    > > > > from the same email address that you subscribed. Text in the
    > > Subject and
    > > > Body of the message will be ignored.
    > > > >
    > > > > Yahoo! Groups Links
    > > > >
    > > > >
    > > > >
    > > > >
    > > > >
    > > > >
    > >
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the Subject
    and
    > Body of the message will be ignored.
    > >
    > > Yahoo! Groups Links
    > >
    > >
    > >
    > >
    > >
    > >
    >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
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  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 15:27
    >Eric,
    >Yes, I'm looking for a serial buffer.

    There is also the MAX3100, which is a UART and 8 byte fifo buffer
    that connects to the Stamp via SERIN/SEROUT. App note and links at
    this URL: <http://www.emesystems.com/BS2IrDA.htm>. The URL
    emphasizes the IrDA capability of the chip, but it is just as capable
    of straight RS232.
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 15:34
    Also see http://www.wd5gnr.com/suart.htm.

    Regards,

    Al Williams
    AWC
    * New Kits: http://www.awce.com/kits.htm

    Original Message
    From: Tracy Allen [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=RxM36yoY0tFwp0YQToaZIMOx18Z9NqSU7b9ZIzm6waPlKvbndhDhLulBeLyrx3AbG0IQrrpVS8NpcLn7]tracy@e...[/url
    Sent: Tuesday, July 20, 2004 9:28 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Re: Is there any common IC chip that can be used as
    buffer?

    >Eric,
    >Yes, I'm looking for a serial buffer.

    There is also the MAX3100, which is a UART and 8 byte fifo buffer that
    connects to the Stamp via SERIN/SEROUT. App note and links at this URL:
    <http://www.emesystems.com/BS2IrDA.htm>. The URL emphasizes the IrDA
    capability of the chip, but it is just as capable of straight RS232.


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  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 16:55
    Here is a 32 byte serial buffer chip.
    http://www.protean-logic.com/tickit/rsb509CX_HTML_Cutsheet.htm
    Not sure if it is still available.

    regards peter
    Original Message
    From: "Tracy Allen" <tracy@e...>
    To: <basicstamps@yahoogroups.com>
    Sent: Tuesday, July 20, 2004 4:27 PM
    Subject: [noparse][[/noparse]basicstamps] Re: Is there any common IC chip that can be used as
    buffer?


    > >Eric,
    > >Yes, I'm looking for a serial buffer.
    >
    > There is also the MAX3100, which is a UART and 8 byte fifo buffer
    > that connects to the Stamp via SERIN/SEROUT. App note and links at
    > this URL: <http://www.emesystems.com/BS2IrDA.htm>. The URL
    > emphasizes the IrDA capability of the chip, but it is just as capable
    > of straight RS232.
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    > Yahoo! Groups Links
    >
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 17:58
    They have a new website and now also offer 64byte buffers:
    http://www.proteanlogic.com/product_periph_rs232.shtml
    regards peter
    Original Message
    From: "Peter Verkaik" <peterverkaik@b...>
    To: <basicstamps@yahoogroups.com>
    Sent: Tuesday, July 20, 2004 5:55 PM
    Subject: **SPAM: Re: [noparse][[/noparse]basicstamps] Re: Is there any common IC chip that can
    be used as buffer?


    > Here is a 32 byte serial buffer chip.
    > http://www.protean-logic.com/tickit/rsb509CX_HTML_Cutsheet.htm
    > Not sure if it is still available.
    >
    > regards peter
  • ArchiverArchiver Posts: 46,084
    edited 2004-07-20 20:09
    Thanks for all your help. I think I'll be trying the
    maxim chip. I talked to the owner of protean-logic and
    the rs232 serial buffer chips are still in the beta
    stage.

    Eric


    --- Peter Verkaik <peterverkaik@b...> wrote:
    > Here is a 32 byte serial buffer chip.
    >
    http://www.protean-logic.com/tickit/rsb509CX_HTML_Cutsheet.htm
    > Not sure if it is still available.
    >
    > regards peter
    >
    >
    Original Message
    > From: "Tracy Allen" <tracy@e...>
    > To: <basicstamps@yahoogroups.com>
    > Sent: Tuesday, July 20, 2004 4:27 PM
    > Subject: [noparse][[/noparse]basicstamps] Re: Is there any common IC
    > chip that can be used as
    > buffer?
    >
    >
    > > >Eric,
    > > >Yes, I'm looking for a serial buffer.
    > >
    > > There is also the MAX3100, which is a UART and 8
    > byte fifo buffer
    > > that connects to the Stamp via SERIN/SEROUT. App
    > note and links at
    > > this URL:
    > <http://www.emesystems.com/BS2IrDA.htm>. The URL
    > > emphasizes the IrDA capability of the chip, but it
    > is just as capable
    > > of straight RS232.
    > >
    > >
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