CY7C1021CV26 Datasheet, PDF (7/9 Pages) Cypress Semiconductor – 1-Mbit (64K x 16) Static RAM

Switching Waveforms (continued)
Write Cycle No. 3 (WE Controlled, LOW)
t_WC
ADDRESS
CY7C1021CV26
CE
t_SA
WE
BHE, BLE
DATA I/O
t_SCE
t_AW
t_PWE
t_BW
t_HZWE
t_SD
t_HA
t_HD
t_LZWE
Truth Table
CE OE WE BLE BHE
I/O₁–I/O₈
H X XX
X
High-Z
L L HL
L
Data Out
L
H
Data Out
H
L
High-Z
L X LL
L
Data In
L
H
Data In
H
L
High-Z
L H HX
X
High-Z
L X XH
H
High-Z
I/O₉–I/O₁₆
High-Z
Data Out
High-Z
Data Out
Data In
High-Z
Data In
High-Z
High-Z
Mode
Power-down
Read – All bits
Read – Lower bits only
Read – Upper bits only
Write – All bits
Write – Lower bits only
Write – Upper bits only
Selected, Outputs Disabled
Selected, Outputs Disabled
Ordering Information
Speed
(ns)
15
Ordering Code
CY7C1021CV26-15ZE
Package
Name
Z44
Package Type
44-lead TSOP Type II
Power
Standby (I_SB)
Active (I_CC)
Active (I_CC)
Active (I_CC)
Active (I_CC)
Active (I_CC)
Active (I_CC)
Active (I_CC)
Active (I_CC)
Operating
Range
Automotive
Document #: 38-05589 Rev. **
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