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CY7C1399
6
Notes:
13. Data I/O is high impedance if OE = VIH.
14. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
15. During this period, the I/Os are in the output state and input signals shold not be applied.
Switching Waveforms (continued)
tHD
tSD
tPWE
tSA
tHA
tAW
tWC
DATA I/O
ADDRESS
CE
WE
OE
tHZOE
C1399–8
DATAIN VALID
Write Cycle No. 1 (WE Controlled)[8, 13, 14]
NOTE 15
tWC
tAW
tSA
tHA
tHD
tSD
tSCE
WE
DATA I/O
ADDRESS
CE
C1399–9
DATAIN VALID
Write Cycle No. 2 (CE Controlled)[8, 13, 14]
DATA I/O
ADDRESS
tHD
tSD
tLZWE
tSA
tHA
tAW
tWC
CE
WE
tHZWE
C1399–10
DATA IN VALID
Write Cycle No. 3 (WE Controlled, OE LOW)[9, 14]
NOTE 15
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