CY7C017AV データシートの表示（PDF） - Cypress Semiconductor
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CY7C017AV Datasheet PDF : 20 Pages
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Switching Waveforms
Read Cycle No. 1 (Either Port Address Access)[24, 25, 26]
tRC
ADDRESS
DATA OUT
tAA
tOHA
PREVIOUS DATA VALID
Read Cycle No. 2 (Either Port CE/OE Access)[24, 27, 28]
CE
OE
DATA OUT
ICC
CURRENT
ISB
tACE
tDOE
tLZOE
tLZCE
tPU
Read Cycle No. 3 (Either Port)[24, 26, 27, 28]
tRC
ADDRESS
tAA
CY7C138AV/144AV/006AV
CY7C139AV/145AV/016AV
CY7C007AV/017AV
DATA VALID
tOHA
tHZCE
tHZOE
DATA VALID
tPD
tOHA
CE
DATA OUT
tLZCE
tABE
tACE
tLZCE
Notes:
24. R/W is HIGH for read cycles.
25. Device is continuously selected CE = VIL. This waveform cannot be used for semaphore reads.
26. OE = VIL.
27. Address valid prior to or coincident with CE transition LOW.
28. To access RAM, CE = VIL, SEM = VIH. To access semaphore, CE = VIH, SEM = VIL.
tHZCE
Document #: 38-06051 Rev. *C
Page 10 of 20
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