UPD444012A-X Datasheet, PDF (10/24 Pages) NEC – 4M-BIT CMOS STATIC RAM 256K-WORD BY 16-BIT EXTENDED TEMPERATURE OPERATION

Read Cycle Timing Chart
Address (Input)
/CE1 (Input)
CE2 (Input)
/OE (Input)
/LB, /UB (Input)
I/O (Output)
tRC
tAA
tCO1
tLZ1
tCO2
tLZ2
tOE
tOLZ
tBA
tBLZ
High impedance
Remark In read cycle, /WE should be fixed to high level.
µPD444012A-X
tOH
tHZ1
tHZ2
tOHZ
tBHZ
Data out
10
Data Sheet M14464EJ5V0DS