23256
32K x 8 ROM

PIN DESC FUNCTION 1 Vpp 5V DC 2-10,21,23-27 A0-A14 Address Bus Inputs. 11-13,15-19 D0-D7 Data Outputs. 14 GND Ground. 20 CE Chip Enable. 22 OE Output Enable. 28 Vcc 5V DC Input.

2016
2K x 8 STATIC RAM

PIN DESC FUNCTION 1-8,19,22,23 A0-A10 Address Bus Inputs. 9-11,13-17 D0-D7 Common Data Input/Output Lines. 12 Vss Ground. 18 CS Chip Select Enable, Low Active. 20 OE Output Enable, Low Active. 21 WE Write (Input) Enable, Low Active. 24 Vcc 5V DC Input.