Cypress CY7C107BN - Manual (Page 4)

CY7C107BN
CY7C1007BN
Document #: 001-06426 Rev. ** Page 4 of 7
Switching Waveforms
Read Cycle No. 1
[10, 11]
Read Cycle No. 2 [11, 12]
Write Cycle No. 1 (CE Controlled)
[13]
Notes:
9. No input may exceed V
CC
+ 0.5V.
10. Device is continuously selected, CE = V
IL
.
11. WE is HIGH for read cycle.
12. Address valid prior to or coincident with CE transition LOW.
13. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
PREVIOUS DATA VALID DATA VALID
t
RC
t
AA
t
OHA
ADDRESS
DATA OUT
50% 50%
DATA VALID
t
RC
t
ACE
t
LZCE
t
PU
HIGH IMPEDANCE
t
HZCE
t
PD
HIGH
I
CC
I
SB
IMPEDANCE
ADDRESS
CE
DATA OUT
V
CC
SUPPLY
CURRENT
DATA VALID
t
SCE
t
AW
t
SA
t
PWE
t
HA
t
HD t
SD
t
WC
HIGH IMPEDANCE
ADDRESS
CE
WE
DATA OUT
DATA IN
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