7 segment displays ?

[sunny]

Browsing the eagle library I have come across some displays which,
it seems, are 7 segment led display that take binary as an input. Is
this possible, are there such devices ? I always thought that the
displays themselves are very dumb and have pins for the individual
segments.
Tia.

 

[Sir Charles W. Shults III]

"sunny" <nomail@btinternet.com> wrote in message
news:biva35$6bt$1@hercules.btinternet.com...

Browsing the eagle library I have come across some displays which,
it seems, are 7 segment led display that take binary as an input. Is
this possible, are there such devices ? I always thought that the
displays themselves are very dumb and have pins for the individual
segments.
Tia.

Of course it's possible. How do you think the binary in a digital counter
is displayed? It is typically binary coded decimal, or if you use straight
binary, then a hex code variety. But the displays can be dumb or smart, your
choice.

Cheers!

Chip Shults
My robotics, space and CGI web page - http://home.cfl.rr.com/aichip

 

[Dr. Anton Squeegee]

In article <biva35$6bt$1@hercules.btinternet.com>, sunny says...

Browsing the eagle library I have come across some displays which,
it seems, are 7 segment led display that take binary as an input. Is
this possible, are there such devices ? I always thought that the
displays themselves are very dumb and have pins for the individual
segments.

Most do, but there have been (and are) displays made that have the
decoding chip built in. HP used to make these (don't know if they still
do), and I've seen them used in several of their instruments including
the 8640 series RF signal generator.


--
Dr. Anton Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
kyrrin a/t bluefeathertech d-o=t c&o&m
"Quando Omni Flunkus Moritati" (Red Green)

 

[Allen Bong]

"Dr. Anton Squeegee" <SpammersAreVermin@dev.null> wrote in message
news:MPG.19bd0367c44a6599899ff@192.168.42.131...

In article <biva35$6bt$1@hercules.btinternet.com>, sunny says...

Browsing the eagle library I have come across some displays which,
it seems, are 7 segment led display that take binary as an input. Is
this possible, are there such devices ? I always thought that the
displays themselves are very dumb and have pins for the individual
segments.

Most do, but there have been (and are) displays made that have the
decoding chip built in. HP used to make these (don't know if they still
do), and I've seen them used in several of their instruments including
the 8640 series RF signal generator.

The HP part number is 5082-7340 and the TI also have a part TIL-311 which
have a latch/decoder/driver built in. The datsheet is available at

http://groups.yahoo.com/group/cosmacelf/files/DataSheets/

Allen