CY7C197-12PC(1995) 데이터 시트보기 (PDF) - Cypress Semiconductor
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CY7C197-12PC Datasheet PDF : 10 Pages
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CY7C197
Switching Waveforms
Read Cycle No.1 [12,13]
tRC
ADDRESS
DATA OUT
tAA
tOHA
PREVIOUS DATA VALID
Read Cycle No.2 [12]
tRC
CE
DATA OUT
VCC
SUPPLY
CURRENT
tACE
tLZCE
HIGH IMPEDANCE
tPU
50%
DATA VALID
C197-6
DATA VALID
tHZCE
HIGH
IMPEDANCE
tPD
ICC
50%
ISB
Write Cycle No.1 (WE Controlled) [11]
ADDRESS
CE
WE
DATA IN
DATA OUT
tWC
tSCE
tAW
tSA
DATA UNDEFINED
tHA
tPWE
tSD
tHD
DATA VALID
tHZWE
tLZWE
HIGH IMPEDANCE
Notes:
12. WE is HIGH for read cycle.
13. Device is continuously selected, CE = VIL.
C197-7
C197-8
5
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