HPQDSP-2543

[bbiandov]

I found some old Cellular one TDMA phones and took the cute looking 8 character dot matrix displays but can't find any spec sheet on them

Can someoe point me to the right direction. Those are made by HP and have markings QDSP-2543 with 24 pins total

I cant find anything similar either so to extrapolate the pins. The 5x7 characters are totally cute and I would really like to get this baby going so your help will be appreciated

~B

 

[hotwaterwizard]

QDSP-2543

Hewlett-
Packard 72R09626J07
# on part 8 5x7 0.2' tall characters in two pre-attached HP HDSP series pkgs.
Each pkg has 12 pins. High efficiency red. Used by IBM, others

http://www.geocities.com/rxtxtubes/pa00031.htm
http://www.sampson-jeff.com/lcdindex.htm
**broken link removed**

 

[arun.ece]

hey

how old is tdma and is it still used please let me know , what is the new methords employed other than tdma

 

[bbiandov]

Hotwaterwizard, thanks so much!

 

[evandude]

Talk about a fast-paced thread!