CY7C1021-10 CYPRESS [Cypress Semiconductor], CY7C1021-10 Datasheet - Page 6

• Manufacturer Part Number: CY7C1021-10
• Description: 64K x 16 Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Switching Waveforms
Truth Table
Document #: 38-05054 Rev. **
CE
Write Cycle No.3 (WE Controlled, LOW)
BHE, BLE
H
DATA I/O
L
L
L
L
ADDRESS
OE
CE
WE
X
X
H
X
L
WE
H
H
X
L
X
X
L
L
H
L
L
H
X
H
BLE
X
L
H
L
L
H
L
X
H
BHE
t
SA
(continued)
High Z
Data Out
Data Out
High Z
Data In
Data In
High Z
High Z
High Z
I/O
1
–I/O
8
t
AW
High Z
Data Out
High Z
Data Out
Data In
High Z
Data In
High Z
High Z
I/O
t
SCE
9
–I/O
t
t
t
BW
WC
HZWE
16
t
PWE
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
t
SD
Mode
t
HD
t
LZWE
t
HA
Standby (I
Active (I
Active (I
Active (I
Active (I
Active (I
Active (I
Active (I
Active (I
CY7C1021
Power
CC
CC
CC
CC
CC
CC
CC
CC
Page 6 of 9
1021-10
SB
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