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CY7C182-45VC 데이터 시트보기 (PDF) - Cypress Semiconductor
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CY7C182-45VC
8Kx9 Static RAM
Cypress Semiconductor
CY7C182-45VC Datasheet PDF : 7 Pages
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5
6
7
Switching Waveforms
Read Cycle No. 1
[4, 9]
t
RC
ADDRESS
DATA OUT
t
AA
t
OHA
PREVIOUS DATA VALID
Read Cycle No. 2
[4, 10]
CE
1
t
RC
CY7C182
DATA VALID
C182
–
5
CE
2
OOEE
DATA OUT
V
CC
SUPPLY
CURRENT
t
ACE1
t
ACE2
t
DOE
t
LZOE
HIGH IMPEDANCE
t
LZCE
t
PU
50%
Write Cycle No. 1 (WE Controlled)
[6]
ADDRESS
CS
1
t
SCE1
t
SCE2
CS
2
WE
t
AW
t
SA
DATA VALID
t
WC
t
PWE
t
HZOE
t
HZCE
HIGH
IMPEDANCE
t
PD
50%
ICC
ISB
C182
–
6
t
HA
DATA IN
DATA I/O
DATA UNDEFINED
t
SD
t
HD
DATA VALID
t
HZWE
t
LZWE
HIGH IMPEDANCE
Notes:
9. Device is continuously selected. OE, CE
1
= V
IL
. CE
2
= V
IH.
10. If CE
1
goes HIGH and CE
2
goes LOW simultaneously with WE HIGH, the output remains in a high-impedance state.
C182
–
7
Document #: 38-05031 Rev. **
Page 4 of 7
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