SRAM 1k x 4
From Citylan
SRAM 1K x 4 (DIP18, 300mil)
4Kb, 512B, 400hex4 bit
2114 2148 AM2148 AM9114 D2148H HM6148 HN472114 MM2114N NMC2148HJ SY2114 SY2148H TMM314 UM2148-1 uPD2114
+--\/--+ A6 |1 18| Vcc A5 |2 17| A7 A4 |3 16| A8 A3 |4 15| A9 A0 |5 14| IO1 A1 |6 13| IO2 A2 |7 12| IO3 CE/ |8 11| IO4 GND |9 10| WE/ +------+