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CY7C148
CY7C149
Document #: 38-05059 Rev. **
Page 5 of 9
Notes:
13. If CS goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
Switching Waveforms (continued)
Write Cycle No. 2 (CSControlled)
tWC
DATA UNDEFINED
HIGH IMPEDANCE
tCW
tAW
tWP
tWR
tDH
tWZ
tDW
ADDRESS
CS
WE
DATA IN
DATA OUT
C148–9
DATAIN VALID
[13]
Typical DC and AC Characteristics
1.2
1.4
1.0
0.6
0.4
0.2
4.0
4.5
5.0
5.5
6.0
1.6
1.4
1.2
1.0
0.8
−55
25
125
−55
25
125
1.2
1.0
0.8
120
100
80
60
40
20
0.0
1.0
2.0
3.0
4.0
SUPPLY VOLTAGE(V)
NORMALIZED SUPPLY CURRENT
vs.SUPPLY VOLTAGE
NORMALIZED ACCESS TIME
vs.AMBIENT TEMPERATURE
AMBIENT TEMPERATURE(°C)
NORMALIZED SUPPLY CURRENT
vs.AMBIENT TEMPERATURE
AMBIENT TEMPERATURE(°C)
OUTPUT VOLTAGE(V)
OUTPUT SOURCE CURRENT
vs.OUTPUT VOLTAGE
0.0
0.8
1.4
1.1
1.0
0.9
4.0
4.5
5.0
5.5
6.0
SUPPLY VOLTAGE(V)
NORMALIZED ACCESS TIME
vs.SUPPLY VOLTAGE
120
140
100
60
40
20
0.0
1.0
2.0
3.0
4.0
0
80
OUTPUT VOLTAGE(V)
OUTPUT SINK CURRENT
vs.OUTPUT VOLTAGE
0.6
0.4
0.2
0.0
ISB
VCC =5.0V
VIN =5.0V
ICC
ICC
VCC =5.0V
VCC =5.0V
TA =25°C
VCC =5.0V
TA =25°C
ISB
TA =25°C
0.6
0.8
0
1.3
1.2
VIN =5.0V
TA =25°C
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