CY7C164 Просмотр технического описания (PDF) - Cypress Semiconductor
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CY7C164 Datasheet PDF : 9 Pages
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CY7C164
CY7C166
Switching Waveforms
Read Cycle No.1 [9, 10]
tRC
ADDRESS
DATA OUT
tAA
tOHA
PREVIOUS DATA VALID
DATA VALID
C164–7
Read Cycle No. 2 [9, 11]
tRC
CE
OE
7C166
DATA OUT
V CC
SUPPLY
CURRENT
tACE
tDOE
tLZOE
HIGH IMPEDANCE
tLZCE
tPU
50%
DATA VALID
tHZOE
tHZCE
HIGH
IMPEDANCE
tPD
50%
ICC
ISB
C164–8
Write Cycle No. 1 (WE Controlled) [8, 12]
tWC
ADDRESS
tSCE
CE
WE
DATA IN
tAW
tHA
tSA
tPWE
tSD
tHD
DATAINVALID
DATA I/O
DATA UNDEFINED
tHZWE
tLZWE
HIGH IMPEDANCE
Notes:
9. WE is HIGH for read cycle.
10. Device is continuously selected, CE = VIL. (CY7C166: OE = VIL also).
11. Address valid prior to or coincident with CE transition LOW.
12. CY7C166 only: Data I/O will be high-impedance if OE = VIH.
C164–9
Document #: 38-05025 Rev. **
Page 4 of 9
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