8 / 10 page
CY7C1041B
8
Truth Table
CE
OE
WE
BLE
BHE
I/O0–I/O7
I/O8–I/O15
Mode
Power
H
X
X
X
X
High Z
High Z
Power Down
Standby (ISB)
L
L
H
L
L
Data Out
Data Out
Read All bits
Active (ICC)
L
L
H
L
H
Data Out
High Z
Read Lower bits only
Active (ICC)
L
L
H
H
L
High Z
Data Out
Read Upper bits only
Active (ICC)
L
X
L
L
L
Data In
Data In
Write All bits
Active (ICC)
L
X
L
L
H
Data In
High Z
Write Lower bits only
Active (ICC)
L
X
L
H
L
High Z
Data In
Write Upper bits only
Active (ICC)
L
H
H
X
X
High Z
High Z
Selected, Outputs Disabled
Active (ICC)
Switching Waveforms (continued)
Write Cycle No. 3 (WE Controlled, LOW)
OE
1041B-10
tHD
tSD
tSCE
tHA
tAW
tPWE
tWC
tBW
DATA I/O
ADDRESS
CE
WE
BHE, BLE
tSA
tLZWE
tHZWE