FYI I have a small number of DataMan S4 programmers for possible re-homing.
Can be supplied with new NiCad packs and own modification of replacing
internal coin cell battery.
(Coin cell battery is soldered to the PCB and goes permanently flat in a
couple of days with no NiCad pack fitted... Found this out the hard way!)
Regards
Sid Jones
-----Original Message-----
From: Mike Katz via cctalk
Sent: Thursday, June 04, 2026 3:18 AM
To: Jon Elson via cctalk
Cc: Mike Katz
Subject: [cctalk] Re: HN482764G EPROMS
Jon,
The Hitachi part has a 21V programming voltage. I don't know if the T48
can go that high? I will have to check.
Thank you for your time. If you want to send me the part numbers, I
will figure out what will work the best for me.
Thank you,
Mike
On 6/3/2026 2:41 PM, Jon Elson via cctalk wrote:
On 6/3/26 11:15, Mike Katz via cctalk wrote:
Does anyone have any HN482764G or other 250nS or faster 2764 EPROMs they
can let go of inexpensively?
I could use 4 or 5. I will generate the shipping label from here so you
don't have to worry about the shipping costs.
I have 6 AM2764 devices. I have 5 that are AM2764ADC with the notation
for 12.5V PGM.
Looking these up, it seems that they are 250 ns Tacc. I also have an
AM2764DC, not sure what the difference is. I also have a bunch of Intel,
Fujitsu and TI 2764's, I can get you the exact part #'s if you want to try
looking them up.
Jon
