Cypress CY62148ESL Computer Hardware User Manual


 
CY62148ESL MoBL
®
Document #: 001-50045 Rev. ** Page 8 of 10
Figure 6. Write Cycle No. 2 (CE Controlled)
[16, 17]
Figure 7. Write Cycle No. 3 (WE Controlled, OE LOW)
[17]
Truth Table
CE WE OE Inputs/Outputs Mode Power
H X X High Z Deselect/Power Down Standby (I
SB
)
L H L Data Out Read Active (I
CC
)
L H H High Z Output Disabled Active (I
CC
)
L L X Data in Write Active (I
CC
)
Switching Waveforms
(continued)
t
WC
DATA VALID
t
AW
t
SA
t
PWE
t
HA
t
HD
t
SD
t
SCE
ADDRESS
CE
DATA IO
WE
DATA VALID
t
HD
t
SD
t
LZWE
t
PWE
t
SA
t
HA
t
AW
t
SCE
t
WC
t
HZWE
ADDRESS
CE
WE
DATA IO
NOTE
18
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