Cypress Semiconductor CY7C1399B Şartname Sayfası - Sayfa 7
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Sayfayı YazdırSwitching Waveforms
Write Cycle No. 1 (WE Controlled)
ADDRESS
CE
WE
OE
NOTE 15
DATA I/O
Write Cycle No. 2 (CE Controlled)
ADDRESS
CE
WE
DATA I/O
Write Cycle No. 3 (WE Controlled, OE LOW)
ADDRESS
CE
WE
DATA I/O
Notes:
13. Data I/O is high impedance if OE = V
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 should not be applied.
Document #: 38-05071 Rev. *A
(continued)
[8, 13, 14]
t
t
SA
t
HZOE
[8, 13, 14]
t
SA
[9, 14]
t
SA
NOTE 15
t
HZWE
.
IH
t
WC
AW
t
PWE
t
SD
DATA
VALID
IN
t
WC
t
SCE
t
AW
t
SD
DATA
VALID
IN
t
WC
t
AW
t
SD
DATA
VALID
IN
CY7C1399B
t
HA
t
HD
t
HA
t
HD
t
HA
t
HD
t
LZWE
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