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CY7C194B
CY7C195B
Document #: 38-05409 Rev. *A
Page 9 of 13
Write Cycle No. 1 (WE Controlled) 2 13 14 15
Write Cycle No. 2 (CE Controlled)16 17 18
Notes:
13. This cycle is WE controlled, OE is HIGH during write.
14. Data In/Out is high impedance if OE = VIH.
15. During this period the I/Os are in output state and input signals should not be applied.
16. This cycle is CE controlled.
17. Data In/Out is high impedance if OE = VIH.
18. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
Address
CE
WE
Data In/Out
t
WC
Data-In Valid
t
SCE
t
SA
t
AW
t
PWE
t
HA
t
HD
t
SD
OE
t
HZOE
Undefined
see footnotes
Address
CE
WE
Data In/Out
t
WC
Data-In Valid
t
SCE
t
SA
t
AW
t
HA
t
HD
t
SD
High Z
High Z
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