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CY7C148
CY7C149
Document #: 38-05059 Rev. **
Page 6 of 9
Typical DC and AC Characteristics
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.0
2.0
3.0
4.0
SUPPLY VOLTAGE(V)
TYPICAL POWER–ON CURRENT
vs.SUPPLY VOLTAGE(7C148)
30.0
25.0
20.0
15.0
10.0
5.0
0
200
400
600
800
CAPACITANCE (pF)
TYPICAL ACCESS TIME CHANGE
vs.OUTPUT LOADING
1.4
1.2
1.0
10
20
30
40
CYCLE FREQUENCY (MHz)
NORMALIZED I CC vs.ACCESS TIME
0.0
5.0
0.0
1000
0.8
VCC =4.5V
TA =25°C
0.9
1.1
1.3
TA =25°C
1K
Ω CSPULL–UP
RESISTORTOV CC
ISB
50
60
Ordering Information
Speed
(ns)
Ordering Code
Package
Name
Package Type
Operating
Range
25
CY7C148
−25PC
P3
18-Lead (300-Mil) Molded DIP
Commercial
35
CY7C148
−35PC
P3
18-Lead (300-Mil) Molded DIP
Commercial
CY7C148
−35DMB
D4
18-Lead (300-Mil) CerDIP
Military
45
CY7C148
−45PC
P3
18-Lead (300-Mil) Molded DIP
Commercial
CY7C148
−45DMB
D4
18-Lead (300-Mil) CerDIP
Military
Speed
(ns)
Ordering Code
Package
Name
Package Type
Operating
Range
25
CY7C149
−25PC
P3
18-Lead (300-Mil) Molded DIP
Commercial
35
CY7C149
−35PC
P3
18-Lead (300-Mil) Molded DIP
Commercial
CY7C149
−35DMB
D4
18-Lead (300-Mil) CerDIP
Military
CY7C149
−35LMB
L50
18-Pin Rectangular Leadless Chip Carrier
45
CY7C149
−45PC
P3
18-Lead (300-Mil) Molded DIP
Commercial
CY7C149
−45DMB
D4
18-Lead (300-Mil) CerDIP
Military
CY7C149
−45LMB
L50
18-Pin Rectangular Leadless Chip Carrier
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