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CY7C109BN
CY7C1009BN
Document #: 001-06430 Rev. **
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Write Cycle No. 1 (CE1 or CE2 Controlled)
[13, 14]
Write Cycle No. 2 (WE Controlled, OE HIGH During Write)[13, 14]
Notes:
13. Data I/O is high impedance if OE = VIH.
14. If CE1 goes HIGH or CE2 goes LOW simultaneously with WE going HIGH, the output remains in a high-impedance state.
15. During this period the I/Os are in the output state and input signals should not be applied.
Switching Waveforms (continued)
tWC
DATA VALID
tAW
tSA
tPWE
tHA
tHD
tSD
tSCE
tSCE
CE1
ADDRESS
CE2
WE
DATA I/O
tHD
tSD
tPWE
tSA
tHA
tAW
tSCE
tSCE
tWC
tHZOE
DATAIN VALID
CE1
ADDRESS
CE2
WE
DATA I/O
OE
NOTE 15