82S129

256*4
   +------+
A6 |1   16| Vcc
A5 |2   15| A7
A4 |3   14| CE2/
A3 |4   13| CE1/
A0 |5   12| O1
A1 |6   11| O2
A2 |7   10| O3
GND|8    9| O4
   +------+

   Signetics     MMI     TI       Harris  Raytheon  AMD      National  Intel    Fujitsu
   ---------     ---     --       ------  --------  ---      --------  -----    -------
   82S129        6301    24S10    7611-5    29661   27S21     74S287   3621      7052