Casio TE-2200 - Page 29

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4-9. SRAM (US only, IC14, 15: M68AF128BM70MC6U)
4-9-1. Pin Assignment
4-9-2. Pin Function
4-9-3. Block Diagram
A0-A16 Address Inputs
DQ0-DQ7 Data Input/Output
E1, E2 Chip Enable
G Output Enable
W Write Enable
V
CC
Supply Voltage
V
SS
Ground
ROW
DECODER
A7
A16
DQ0
DQ7
COLUMN
DECODER
I/O CIRCUITS
A0
A6
W
G
MEMORY
ARRAY
V
CC
V
SS
E2
E1
17
A0-A16
W
DQ0-DQ7
V
CC
V
SS
8
E1
G
E2