2532 +----o----+ A7 | 1 24| Vcc A6 | 2 23| A8 A5 | 3 22| A9 A4 | 4 21| Vpp (A11 on 2732A) A3 | 5 20| PD/PGM (G*Vpp on 2732A) A2 | 6 19| A10 A1 | 7 18| A11 (E* on 2732A) A0 | 8 17| Q8 Q1 | 9 16| Q7 Q2 |10 15| Q6 Q3 |11 14| Q5 Vss |12 13| Q4 +---------+ To program the 2532, the PGM input is pulsed low for each address to be programmed. This is equivalent to the /E on the 2732A which is pulsed low during programming. So, to program a 2532 on a 2732A programmer, cross the following pins: 2532 pin to 2732A pin 18 21 (A11) 20 18 (pgm pulse low pin, low for read) 21 20 (Vpp prog voltage input)