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CY7C109
CY7C1009
Document #: 38-05032 Rev. **
Page 7 of 12
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.
Switching Waveforms (continued)
109–8
tWC
DATA VALID
tAW
tSA
tPWE
tHA
tHD
tSD
tSCE
tSCE
CE1
ADDRESS
CE2
WE
DATA I/O
109–9
tHD
tSD
tPWE
tSA
tHA
tAW
tSCE
tSCE
tWC
tHZOE
DATAIN VALID
CE1
ADDRESS
CE2
WE
DATA I/O
OE
NOTE 15