CY62148 データシートの表示（PDF） - Cypress Semiconductor
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CY62148 Datasheet PDF : 7 Pages
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PRELIMINARY
Switching Waveforms
Read Cycle No.1[10,11]
ADDRESS
DATA OUT
tRC
tAA
tOHA
PREVIOUS DATA VALID
Read Cycle No. 2 (OE Controlled)[11,12]
ADDRESS
tRC
CE
CY62148
DATA VALID
62148-5
tACE
OE
DATA OUT
VCC
SUPPLY
CURRENT
tDOE
tLZOE
HIGH IMPEDANCE
tLZCE
tPU
50%
Write Cycle No. 1 (CE Controlled)[13,14]
ADDRESS
CE
tSA
DATA VALID
tHZOE
tHZCE
HIGH
IMPEDANCE
tPD
50%
ICC
ISB
62148-6
tWC
tSCE
WE
DATA I/O
tAW
tPWE
tSD
DATA VALID
Notes:
10. Device is continuously selected. OE, CE = VIL.
11. WE is HIGH for read cycle.
12. Address valid prior to or coincident with CE transition LOW.
13. Data I/O is high impedance if OE = VIH.
14. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
tHA
tHD
62148-7
4
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