
Switching Waveforms (continued)
Write Cycle No. 3 (WE Controlled, OE LOW)[13]
ADDRESS
CE
tSA
WE
DATA I/O
NOTE 14
tHZWE
Truth Table
CE
OE
H
X
X
X
L
L
L
X
L
H
WE
I/O0–I/O7
X High Z
X High Z
H Data Out
L Data In
H High Z
tWC
tSCE
tAW
tPWE
tSD
DATA VALID
Mode
Power-Down
Power-Down
Read
Write
Selected, Outputs Disabled
CY7C1019BV33
CY7C1018BV33
tHA
tHD
tLZWE
Power
Standby (ISB)
Standby (ISB)
Active (ICC)
Active (ICC)
Active (ICC)
6