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CY62148V MoBL™
6
Switching Waveforms
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 HIGH, the output remains in a high-impedance state.
15. During this period, the I/Os are in output state and input signals should not be applied.
ADDRESS
DATA OUT
PREVIOUS DATA VALID
DATA VALID
tRC
tAA
tOHA
62148V–6
Read Cycle No. 1
[10, 11]
50%
50%
DATA VALID
tRC
tACE
tDOE
tLZOE
tLZCE
tPU
DATA OUT
HIGH IMPEDANCE
IMPEDANCE
ICC
ISB
tHZOE
tHZCE
tPD
OE
CE
HIGH
V
CC
SUPPLY
CURRENT
62148V–7
Read Cycle No. 2 [11, 12]
tHD
tSD
tPWE
tSA
tHA
tAW
tWC
DATA I/O
ADDRESS
CE
WE
OE
tHZOE
62148V–8
DATAIN VALID
NOTE
Write Cycle No. 1 (WE Controlled)
[8, 13, 14]
15
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