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********** C-MOS 256
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9 A0 A1 A2 A3 A4 A5 A6 A7 A8 I/O 1 I/O 2 I/O 3 I/O 4 1 2 24 25
LH64256BK-60 IL08
4 BITS DYNAMIC RAM
I/O1 1 I/O2 2 WE 3 RAS 4 5 NC
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GND 26 25 I/O4 24 I/O3 23 CAS 22 OE
10 11 12 14 15 16 17 18
4 23 3 22
RAS CAS WE OE
A0 9 A1 10 A2 11 A3 12 13 VDD(+5V)
18 A8 17 A7 16 A6 15 A5 14 A4
INPUT A0 - A8 RAS CAS WE OE
; ; ; ; ;
ADDRESS ROW ADDRESS STROBE COLUMN ADDRESS STROBE WRITE ENABLE (H : READ, L : WRITE) DATA OUTPUT ENABLE
INPUT/OUTPUT I/O 1 - I/O 4 ; DATA
OE
22
OE CLOCK GENERATOR R/W CLOCK GENERATOR SENSE AMP.
LH64256BK-60 Datasheet
