CY7C1021
Switching Waveforms
Read Cycle No. 1
[9, 10]
t
RC
ADDRESS
t
AA
t
OHA
DATA OUT
PREVIOUS DATA VALID
DATA VALID
1021-5
Read Cycle No. 2 (OE Controlled)
ADDRESS
[10, 11]
t
RC
CE
t
ACE
OE
BHE, BLE
t
DOE
t
LZOE
t
DBE
t
LZBE
HIGH IMPEDANCE
t
LZCE
V
CC
SUPPLY
CURRENT
t
PU
50%
t
HZCE
t
HZBE
DATA VALID
t
PD
50%
IISB
SB
1021-6
t
HZOE
HIGH
IMPEDANCE
DATA OUT
IICC
CC
Notes:
9. Device is continuously selected. OE, CE, BHE and/or BHE = V
IL
.
10. WE is HIGH for read cycle.
11. Address valid prior to or coincident with CE transition LOW.
Document #: 38-05054 Rev. **
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