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John Dondzila wrote:
>
> Does anyone know how to use standard 2716's
> on a Space Invaders board ?
>
> I've been looking all over for pinouts
> for these damn TMS2716's but have had no luck.

A normal (non-TMS) 2716 versus a TMS2716 pins out like this:

<----- normal 2716 -----><---- TMS2716 pin redefinitions ---->

    +-----+  +-----+
 A7 |1    +--+   24| VCC  <--- Vcc/PE (PE is Program Enable)
 A6 |2           23| A8
 A5 |3           22| A9
 A4 |4           21| VPP  <--- Vbb (-5 volts)
 A3 |5           20| /OE  <--- A10
 A2 |6           19| A10  <--- Vdd (+12 volts)
 A1 |7    2716   18| /CE  <--- S/PGM (chip select/program)
 A0 |8           17| D7
 D0 |9           16| D6
 D1 |10          15| D5
 D2 |11          14| D4
GND |12          13| D3
    +--------------+

 


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