CY7C197 データシートの表示（PDF） - Cypress Semiconductor
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CY7C197 Datasheet PDF : 10 Pages
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CY7C197
Switching Waveforms
Read Cycle No. 1 [10, 11]
tRC
ADDRESS
DATA OUT
tAA
tOHA
PREVIOUS DATA VALID
Read Cycle No. 2 [10]
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) [9]
ADDRESS
CE
WE
DATA IN
DATA OUT
tWC
tSCE
tAW
tSA
DATA UNDEFINED
tHA
tPWE
tSD
tHD
DATA VALID
tHZWE
tLZWE
HIGH IMPEDANCE
Notes:
10. WE is HIGH for read cycle.
11. Device is continuously selected, CE = VIL.
C197-7
C197-8
Document #: 38-05049 Rev. **
Page 5 of 10
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