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National Semiconductor Electronic Components Datasheet

CD4008BC Datasheet

4-Bit Full Adder

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February 1988
CD4008BM CD4008BC 4-Bit Full Adder
General Description
The CD4008B types consist of four full-adder stages with
fast look-ahead carry provision from stage to stage Circuitry
is included to provide a fast ‘‘parallel-carry-out’’ bit to permit
high-speed operation in arithmetic sections using several
CD4008B’s CD4008B inputs include the four sets of bits to
be added A1 to A4 and B1 to B4 in addition to the ‘‘Carry
in’’ bit from a previous section CD4008B outputs include
the four sum bits S1 and S4 in addition to the high-speed
‘‘parallel-carry-out’’ which may be utilized at a succeeding
CD4008B section
All inputs are protected from damage due to static dis-
charge by diode clamps to VDD and GND
Features
Y Wide supply voltage range
3 0V to 15V
Y High noise immunity
Y Low power TTL
compatibility
0 45 VCC (typ )
Fan out of 2 driving 74L
or 1 driving 74LS
Y 4 sum outputs plus parallel look-ahead carry-output
Y Quiescent current specified to 15V
Y Maximum input leakage of 1 mA at 15V (full package
temperature range)
Block Diagram
Truth Table
Ai Bi Ci C0 SUM
000 0
100 0
010 0
110 1
001 0
101 1
011 1
111 1
0
1
1
0
1
0
0
1
Connection Diagram
Dual-In-Line Package
TL F 5944 – 1
Order Number CD4008B
Top View
C1995 National Semiconductor Corporation TL F 5944
TL F 5944 – 2
RRD-B30M105 Printed in U S A


National Semiconductor Electronic Components Datasheet

CD4008BC Datasheet

4-Bit Full Adder

No Preview Available !

Absolute Maximum Ratings (Notes 1 2)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
DC Supply Voltage (VDD)
b0 5V to a18 VDC
Input Voltage (VIN)
b0 5V to VDD a0 5 VDC
Storage Temperature Range (TS)
b65 C to a150 C
Power Dissipation (PD)
Dual-In-Line
700 mW
Small Outline
500 mW
Lead Temperature (TL)
(Soldering 10 seconds)
260 C
Recommended Operating
Conditions (Note 2)
DC Supply Voltage (VDD)
3 to 15 VDC
Input Voltage (VIN)
0 to VDD VDC
Operating Temperature Range (TA)
CD4008BM
CD4008BC
b55 C to a125 C
b40 C to a85 C
DC Electrical Characteristics CD4008BM (Note 2)
Symbol
Parameter
Conditions
b55 C
a25 C
a125 C Units
Min Max Min Typ Max Min Max
IDD
VOL
VOH
VIL
VIH
IOL
IOH
IIN
Quiescent Device Current
Low Level Output Voltage
High Level Output Voltage
Low Level Input Voltage
High Level Input Voltage
Low Level Output Current
(Note 3)
High Level Output Current
(Note 3)
Input Current
VDD e 5V VIN e VDD or VSS
VDD e 10V VIN e VDD or VSS
VDD e 15V VIN e VDD or VSS
lIOlk1mA
VDD e 5V
VDD e 10V
VDD e 15V
lIOl k 1 mA
VDD e 5V
VDD e 10V
VDD e 15V
lIOl k 1 mA
VDDe5V VOe0 5V or 4 5V
VDDe10V VOe1V or 9V
VDDe15V VOe1 5V or 13 5V
lIOl k 1 mA
VDDe5V VOe0 5V or 4 5V
VDDe10V VOe1V or 9V
VDDe15V VOe1 5V or 13 5V
VDDe5V VOe0 4V
VDDe10V VOe0 5V
VDDe15V VOe1 5V
VDDe5V VOe4 6V
VDDe10V VOe9 5V
VDDe15V VOe13 5V
VDD e 15V VIN e 0V
VDD e 15V VIN e 15V
4 95
9 95
14 95
35
70
11 0
0 64
16
42
b0 25
b0 62
b1 8
5
10
20
0 05
0 05
0 05
15
30
40
b0 1
01
4 95
9 95
14 95
35
70
11 0
0 51
13
34
b0 2
b0 5
b1 5
03
05
10
0
0
0
5
10
15
0 88
2 25
88
b0 35
b0 8
b3 5
b10b5
10b5
5
10
20
0 05
0 05
0 05
15
30
40
b0 1
01
4 95
9 95
14 95
35
70
11 0
0 36
09
24
b0 14
b0 35
b1 1
150
300
600
0 05
0 05
0 05
15
30
40
b1 0
10
mA
mA
mA
V
V
V
V
V
V
V
V
V
V
V
V
mA
mA
mA
mA
mA
mA
mA
mA
DC Electrical Characteristics CD4008BC (Note 2)
Symbol
IDD
VOL
VOH
Parameter
Quiescent Device Current
Low Level Output Voltage
High Level Output Voltage
Conditions
VDD e 5V VIN e VDD or VSS
VDD e 10V VIN e VDD or VSS
VDD e 15V VIN e VDD or VSS
lIOl k 1 mA
VDD e 5V
VDD e 10V
VDD e 15V
lIOl k 1 mA
VDD e 5V
VDD e 10V
VDD e 15V
b40 C
Min Max
20
40
80
0 05
0 05
0 05
4 95
9 95
14 95
a25 C
Min Typ Max
0 5 20
1 40
5 80
0 0 05
0 0 05
0 0 05
4 95
9 95
14 95
5
10
15
a85 C
Min Max
150
300
600
0 05
0 05
0 05
4 95
9 95
14 95
Units
mA
mA
mA
V
V
V
V
V
V
2


Part Number CD4008BC
Description 4-Bit Full Adder
Maker National Semiconductor
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CD4008BC Datasheet PDF






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