I have a EMP10 from Needhams Electronics. I'm needing to program and burn a AM2708DC Eprom. I don't have a 2708 in the device list to select of any manufacturer. 2716 is where the lists start. Does anyone know any way around this with the software I have? Is there an older version of software out there for the EMP10 that might have the 2708 Eprom?

Thanks in advance for any help.

 

Howdy, be sure the programming software is compatible with the manufacturer of the 2716 you buy. Different manufacturers have different timing and voltage parameters in devices this old, later ones (2764+) pretty much settled into a standard.

A 2716 is simply twice as large (16384 bits, 2048 bytes) versus the 2708 (8196 bits, 1024 bytes). As such it has one more address line, A10 in your case, just lock it the same BOTH in the programmer And the target device.

Compare the pinouts, data & address lines 0-9 are in the same places, Some difference in control lines. Be especially aware of 3 voltage (+5,+12,-5) versus single (+5) versions and use of pins 18-24.

You can also take advantage of the larger space and have 2 different device routines, just tag the highest address line to a switch to ground and a 10k pullup to +5. I've done this several times, quite a while ago... Good Hunting... <<<)))