Seven segment display drivers
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Posts: 46,084
Hi:
I'm hoping to drive a six digit seven-segment display with my basic
stamp II. The MAX7219 seems to do extactly what I want, but it's a
little expensive and doesn't seem too easy to find.
IS there a cheaper alternative?
DmACQ
I'm hoping to drive a six digit seven-segment display with my basic
stamp II. The MAX7219 seems to do extactly what I want, but it's a
little expensive and doesn't seem too easy to find.
IS there a cheaper alternative?
DmACQ
Comments
>Hi:
>
>I'm hoping to drive a six digit seven-segment display with my basic
>stamp II. The MAX7219 seems to do extactly what I want, but it's a
>little expensive and doesn't seem too easy to find.
> IS there a cheaper alternative?
You might have a look at our EDE707 IC. It is around 15% less expensive
that the MAX part and in stock. Up to 8 digits with counter functionality
also. Datasheet at www.elabinc.com
-Todd Peterson
E-Lab Digital Engineering, Inc.
www.elabinc.com (816) 257-9954
alternative.
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
Original Message
From: dmacq1 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=WnFM5a6MP_c0ZhTC3WF8nAqdpOmeuA8aR-ZS6SCkGLsS6yh3aim6MM6DinWd5Hm42Uj2IC_b1nKb]dmacq@i...[/url
Sent: Monday, June 14, 2004 2:37 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] SEVEN SEGMENT DISPLAY DRIVERS
Hi:
I'm hoping to drive a six digit seven-segment display with my basic
stamp II. The MAX7219 seems to do extactly what I want, but it's a
little expensive and doesn't seem too easy to find. IS there a cheaper
alternative?
DmACQ
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anode or common cathode?
If the unit has a common anode or cathode........I have been looking for a 5
digit seven segment display, you mentioned you want to drive a 6 digit
display.
Who is the manufacturer?
Ken
================
Hi:
I'm hoping to drive a six digit seven-segment display with my basic
stamp II. The MAX7219 seems to do extactly what I want, but it's a
little expensive and doesn't seem too easy to find.
IS there a cheaper alternative?
DmACQ
[noparse][[/noparse]Non-text portions of this message have been removed]
Thanks for your thoughts.
With any luck I'll be making a lot of these things so I'm trying to keep the parts (and
the
hole-drilling to a minimum.
But what you suggest may be a good way to start.
Thanks for your thoughts.
macQ
> I believe 6 x 74HCT595 could be used to drive such
> a display -- with more programming than the 7219.
>
> I thought Jameco, JDR Microdevices, or certainly
> Maxim-IC would have these.
>
> --- In basicstamps@yahoogroups.com, smartdim@a... wrote:
> > Are wiring up 6 individual 7 segment displays or does the unit have
> a common
> > anode or common cathode?
> >
> > If the unit has a common anode or cathode........I have been
> looking for a 5
> > digit seven segment display, you mentioned you want to drive a 6
> digit
> > display.
> >
> > Who is the manufacturer?
> >
> > Ken
> >
> > ================
> >
> > Hi:
> >
> > I'm hoping to drive a six digit seven-segment display with my basic
> > stamp II. The MAX7219 seems to do extactly what I want, but it's a
> > little expensive and doesn't seem too easy to find.
> > IS there a cheaper alternative?
> >
> > DmACQ
> >
> >
> > [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
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message will be ignored.
>
> Yahoo! Groups Links
>
>
>
>
>
Thanks for your thoughts.
With any luck I'll be making a lot of these things so I'm trying to keep the parts (and
the
hole-drilling to a minimum.
The price of the 6276 is right though.
And I liked your clock.
macQ
> Hi DmACQ:
>
> The Allegro 6276 is about $2 each IC in small qty. Serial input, DC LED
> drive with adjustable drive current makes for BRIGHT displays, and
> there's no limit on the number of digits. Up to 90 ma per LED with an
> total for the chip just under 1.5 Amps against a LED supply voltage of
> 17 Volts max, good for all LED colors or series LED connections like are
> used in large 7-segment digits. Each 6276 has 16 current sinks that
> can be used to drive 2 each CA 7-segment digit + d.p., 1 each CA
> alphanumeric LED character (with a couple of unused pins), or 16
> individual LEDs. So for a 6 digit display you need 3 chips for under $7
> total in small quantities. See:
>
> http://www.allegromicro.com/sf/6276/
>
> A 6 digit clock I made at:
> http://www.pacificsites.com/~brooke/LED1PC2.shtml
>
> Have Fun,
>
> Brooke Clarke, N6GCE
> http://www.PRC68.com
>
>
> >Date: Mon, 14 Jun 2004 19:37:28 -0000
> > From: "dmacq1" <dmacq@i...>
> >Subject: SEVEN SEGMENT DISPLAY DRIVERS
> >
> >Hi:
> >
> >I'm hoping to drive a six digit seven-segment display with my basic
> >stamp II. The MAX7219 seems to do extactly what I want, but it's a
> >little expensive and doesn't seem too easy to find.
> > IS there a cheaper alternative?
> >
> >DmACQ
> >
>
>
>
>
> 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
>
>
>
>
>
Know of any software written to drive two of the MC14489s?i
> They are stackable, just like the MAX7219 -- and much easier to come by.
>
> -- Jon Williams
> -- Applications Engineer, Parallax
> -- Dallas Office
>
>
>
Original Message
> From: dmacq1 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=_5MX9Y3FThVMHx9u6onmKQO4lT80CX-mtJ20cODV9mcQlenyYu50ejZkE3mVxKYvqeXXMfW1uCC_]dmacq@i...[/url
> Sent: Tuesday, June 15, 2004 12:29 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Re: SEVEN SEGMENT DISPLAY DRIVERS
>
>
> ---
>
> Hi Jon:
>
> That is a good alternative -- too bad it only drives five digits though.
> Thanks for your help.
>
> Cheers
>
> MaCQ
>
> In basicstamps@yahoogroups.com, "Jon Williams" <jwilliams@p...> wrote:
> > While not a direct replacement, the Motorola MC14489 is a viable
> > alternative.
> >
> > -- Jon Williams
> > -- Applications Engineer, Parallax
> > -- Dallas Office
> >
> >
> >
Original Message
> > From: dmacq1 [noparse][[/noparse]mailto:dmacq@i...]
> > Sent: Monday, June 14, 2004 2:37 PM
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] SEVEN SEGMENT DISPLAY DRIVERS
> >
> >
> > Hi:
> >
> > I'm hoping to drive a six digit seven-segment display with my basic
> > stamp II. The MAX7219 seems to do extactly what I want, but it's a
> > little expensive and doesn't seem too easy to find. IS there a
> > cheaper alternative?
> >
> > DmACQ
> >
> >
> >
> >
> >
> > 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
> >
> >
> >
> >
> >
> >
> >
> > This message has been scanned by WebShield. Please report SPAM to
> > abuse@p...
>
>
>
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>
>
>
>
>
>
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>
a display -- with more programming than the 7219.
I thought Jameco, JDR Microdevices, or certainly
Maxim-IC would have these.
--- In basicstamps@yahoogroups.com, smartdim@a... wrote:
> Are wiring up 6 individual 7 segment displays or does the unit have
a common
> anode or common cathode?
>
> If the unit has a common anode or cathode........I have been
looking for a 5
> digit seven segment display, you mentioned you want to drive a 6
digit
> display.
>
> Who is the manufacturer?
>
> Ken
>
> ================
>
> Hi:
>
> I'm hoping to drive a six digit seven-segment display with my basic
> stamp II. The MAX7219 seems to do extactly what I want, but it's a
> little expensive and doesn't seem too easy to find.
> IS there a cheaper alternative?
>
> DmACQ
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
The Allegro 6276 is about $2 each IC in small qty. Serial input, DC LED
drive with adjustable drive current makes for BRIGHT displays, and
there's no limit on the number of digits. Up to 90 ma per LED with an
total for the chip just under 1.5 Amps against a LED supply voltage of
17 Volts max, good for all LED colors or series LED connections like are
used in large 7-segment digits. Each 6276 has 16 current sinks that
can be used to drive 2 each CA 7-segment digit + d.p., 1 each CA
alphanumeric LED character (with a couple of unused pins), or 16
individual LEDs. So for a 6 digit display you need 3 chips for under $7
total in small quantities. See:
http://www.allegromicro.com/sf/6276/
A 6 digit clock I made at:
http://www.pacificsites.com/~brooke/LED1PC2.shtml
Have Fun,
Brooke Clarke, N6GCE
http://www.PRC68.com
>Date: Mon, 14 Jun 2004 19:37:28 -0000
> From: "dmacq1" <dmacq@i...>
>Subject: SEVEN SEGMENT DISPLAY DRIVERS
>
>Hi:
>
>I'm hoping to drive a six digit seven-segment display with my basic
>stamp II. The MAX7219 seems to do extactly what I want, but it's a
>little expensive and doesn't seem too easy to find.
> IS there a cheaper alternative?
>
>DmACQ
>
Interesting product, nice price.
The large number of transistors seems a little daunting though,
particualrily since I may need to make a number of these things.
Thanks for your thoughts.
MacQ
---
In basicstamps@yahoogroups.com, Todd Peterson <toddp@e...> wrote:
> At 07:37 PM 6/14/2004 +0000, you wrote:
>
> >Hi:
> >
> >I'm hoping to drive a six digit seven-segment display with my basic
> >stamp II. The MAX7219 seems to do extactly what I want, but it's a
> >little expensive and doesn't seem too easy to find.
> > IS there a cheaper alternative?
>
> You might have a look at our EDE707 IC. It is around 15% less
expensive
> that the MAX part and in stock. Up to 8 digits with counter
functionality
> also. Datasheet at www.elabinc.com
>
>
> -Todd Peterson
> E-Lab Digital Engineering, Inc.
> www.elabinc.com (816) 257-9954
Hi Jon:
That is a good alternative -- too bad it only drives five digits though.
Thanks for your help.
Cheers
MaCQ
In basicstamps@yahoogroups.com, "Jon Williams" <jwilliams@p...> wrote:
> While not a direct replacement, the Motorola MC14489 is a viable
> alternative.
>
> -- Jon Williams
> -- Applications Engineer, Parallax
> -- Dallas Office
>
>
>
Original Message
> From: dmacq1 [noparse][[/noparse]mailto:dmacq@i...]
> Sent: Monday, June 14, 2004 2:37 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] SEVEN SEGMENT DISPLAY DRIVERS
>
>
> Hi:
>
> I'm hoping to drive a six digit seven-segment display with my basic
> stamp II. The MAX7219 seems to do extactly what I want, but it's a
> little expensive and doesn't seem too easy to find. IS there a cheaper
> alternative?
>
> DmACQ
>
>
>
>
>
> 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
>
>
>
>
>
>
>
> This message has been scanned by WebShield. Please report SPAM to
> abuse@p...
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
Original Message
From: dmacq1 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=3eIrVmyta86nBZBVdzPiMB9SuIG5rtq4MusJ-Ov3uzUFde5d7Z5VlpSkJkC6PP8Gfwbx6_jwk3Q0U54aAA]dmacq@i...[/url
Sent: Tuesday, June 15, 2004 12:29 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: SEVEN SEGMENT DISPLAY DRIVERS
---
Hi Jon:
That is a good alternative -- too bad it only drives five digits though.
Thanks for your help.
Cheers
MaCQ
In basicstamps@yahoogroups.com, "Jon Williams" <jwilliams@p...> wrote:
> While not a direct replacement, the Motorola MC14489 is a viable
> alternative.
>
> -- Jon Williams
> -- Applications Engineer, Parallax
> -- Dallas Office
>
>
>
Original Message
> From: dmacq1 [noparse][[/noparse]mailto:dmacq@i...]
> Sent: Monday, June 14, 2004 2:37 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] SEVEN SEGMENT DISPLAY DRIVERS
>
>
> Hi:
>
> I'm hoping to drive a six digit seven-segment display with my basic
> stamp II. The MAX7219 seems to do extactly what I want, but it's a
> little expensive and doesn't seem too easy to find. IS there a
> cheaper alternative?
>
> DmACQ
>
>
>
>
>
> 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
>
>
>
>
>
>
>
> This message has been scanned by WebShield. Please report SPAM to
> abuse@p...
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shouldn't be that hard.
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
Original Message
From: dmacq@i... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=wTpfgCR7gNFrSB05Gi-oDq9GMincUmey29j-p7QJvPCqO79Kwg9SvQWBAwfueoJKg_3v2rYefCGkWw]dmacq@i...[/url
Sent: Tuesday, June 15, 2004 9:10 AM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Re: SEVEN SEGMENT DISPLAY DRIVERS
Well, maybe I should consider that, the price is very attractive. Know
of any software written to drive two of the MC14489s?i
> They are stackable, just like the
MAX7219 -- and much easier to come by.
>
> -- Jon Williams
> -- Applications Engineer, Parallax
> -- Dallas Office
>
>
>
Original Message
> From: dmacq1 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=wTpfgCR7gNFrSB05Gi-oDq9GMincUmey29j-p7QJvPCqO79Kwg9SvQWBAwfueoJKg_3v2rYefCGkWw]dmacq@i...[/url
> Sent: Tuesday, June 15, 2004 12:29 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Re: SEVEN SEGMENT DISPLAY DRIVERS
>
>
> ---
>
> Hi Jon:
>
> That is a good alternative -- too bad it only drives five digits
> though. Thanks for your help.
>
> Cheers
>
> MaCQ
>
> In basicstamps@yahoogroups.com, "Jon Williams" <jwilliams@p...>
> wrote:
> > While not a direct replacement, the Motorola MC14489 is a viable
> > alternative.
> >
> > -- Jon Williams
> > -- Applications Engineer, Parallax
> > -- Dallas Office
> >
> >
> >
Original Message
> > From: dmacq1 [noparse][[/noparse]mailto:dmacq@i...]
> > Sent: Monday, June 14, 2004 2:37 PM
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] SEVEN SEGMENT DISPLAY DRIVERS
> >
> >
> > Hi:
> >
> > I'm hoping to drive a six digit seven-segment display with my basic
> > stamp II. The MAX7219 seems to do extactly what I want, but it's a
> > little expensive and doesn't seem too easy to find. IS there a
> > cheaper alternative?
> >
> > DmACQ
> >
> >
> >
> >
> >
> > 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
> >
> >
> >
> >
> >
> >
> >
> > This message has been scanned by WebShield. Please report SPAM to
> > abuse@p...
>
>
>
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>
>
>
>
>
>
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