Cypress CY62157EV18 - Manual (Page 7)

CY62157EV18 MoBL
®
Document #: 38-05490 Rev. *D Page 7 of 12
Write Cycle 1 (WE Controlled)
[16, 20, 21]
Write Cycle 2 (CE
1
or CE
2
Controlled) [16, 20, 21]
Switching Waveforms (continued)
t
HD
t
SD
t
PWE
t
SA
t
HA
t
AW
t
SCE
t
WC
t
HZOE
VALID DATA
t
BW
NOTE 22
CE
1
ADDRESS
CE
2
WE
DATA IO
OE
BHE/BLE
t
HD
t
SD
t
PWE
t
HA
t
AW
t
SCE
t
WC
t
HZOE
VALID DATA
t
BW
t
SA
NOTE 22
CE
1
ADDRESS
CE
2
WE
DATA IO
OE
BHE/BLE
Notes:
20. Data IO is high impedance if OE = V
IH
.
21. If CE
1
goes HIGH and CE
2
goes LOW simultaneously with WE = V
IH
, the output remains in a high impedance state.
22. During this period, the IOs are in output state and input signals must not be applied.
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