Cypress CY7C1020BN - Manual (Page 4)

CY7C1020BN
Document #: 001-06443 Rev. ** Page 4 of 8
Switching Waveforms
Read Cycle No. 1 [9, 10]
Read Cycle No. 2 (OE Controlled)
[10, 11]
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.
PREVIOUS DATA VALID DATA VALID
t
RC
t
AA
t
OHA
ADDRESS
DATA OUT
50% 50%
DATA VALID
t
RC
t
ACE
t
DOE
t
LZOE
t
LZCE
t
PU
HIGH IMPEDANCE
t
HZOE
t
HZBE
t
PD
HIGH
OE
CE
ICC
ISB
IMPEDANCE
ADDRESS
DATA OUT
V
CC
SUPPLY
t
DBE
t
LZBE
t
HZCE
BHE, BLE
CURRENT
I
CC
I
SB
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