MSM54C864 Datasheet, PDF (3/33 Pages) OKI electronic componets – 65,536-Word X 8-Bit Multiport DRAM

¡ Semiconductor
BLOCK DIAGRAM
W1/IO1 - W8/IO8
I/O Buffer
(RAM)
Timing Generator
MSM54C864
SIO1 - SIO8
I/O Buffer
(SAM)
Write
Control
Write per
Bit Control
Mask
Register
(8 Bit)
V_CC
V_SS
256 ¥ 256 ¥ 8
Cell Array
Row Decoder
Column Address
Buffer
Row Address
Buffer
A0 - A7
Serial Address
Counter
Refresh
Counter
3/33