CY62148VN(2010) 查看數據表（PDF） - Cypress Semiconductor
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CY62148VN Datasheet PDF : 10 Pages
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CY62148VN MoBL®
Switching Waveforms
Figure 4. Read Cycle No. 1: Address Transition Controlled [10, 11]
tRRCC
ADDRESS
tAA
tOHA
DATA OUT
PREVIOUS DATA VALID
DATA VALID
CE
OE
DATA OUT
SUPVPCLCY
CURRENT
ADDRESS
CE
WE
Figure 5. Read Cycle No. 2: OE Controlled [11, 12]
tRC
tACE
tDOE
tLZOE
HIGH IMPEDANCE
tLZCE
tPU
50%
DATA VALID
Figure 6. Write Cycle No 1: WE Controlled [8, 13, 14]
tWC
tHZOE
tHZCE
HIGH
IMPEDANCE
tPD
ICC
50%
ISB
tAW
tHA
tSA
tPWE
OE
DATA I/O
NOTE 15
tHZOE
tSD
tHD
DATAIN VALID
Notes
10. The device is continuously selected. OE, CE = VIL.
11. WE is HIGH for read cycle.
12. Address valid before or similar to CE transition LOW.
13. Data I/O is high impedance if OE = VIH.
14. If CE goes HIGH simultaneously with WE = VIH, the output remains in a high impedance state.
Document Number : 001-55636 Rev. *A
Page 6 of 10
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