Programming 2708's - test-drb@ccmp.vtda.org

28 Jun 2005

On Jun 28 2005,  1:48, lee davison wrote:
...
   Sure
you're not looking at the specs for a 2716?  Tony's
 information is correct for a 3-rail 2708 according to my
 Intel, Motorola, Texas data books. 
 Yup, I'm reading from the Softy notes. I do have a datasheet
 for a 2708 but that only says "it is customary to begin with
 the '0' address" and that there are two programming voltages,
 +12v on the PE pin and +25v pulse on the program pin. With
 that part, identified only as N2708 on the sheet, the pulse
 is 1.0ms minimum and the total time per location is a minimum
 of 100ms. 
The standard programming voltage is 26V for 2708s and 3-rail 2716s
(like the Texas ones).  It's 25V for single-rail 2716s.

N2708 is a Signetics part.  Somewhat later than the Intel and others.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York