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SN54LS83A Datasheet(PDF) 1 Page - Motorola, Inc

Part No. SN54LS83A
Description  4-BIT BINARY FULL ADDER WITH FAST CARRY
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

SN54LS83A Datasheet(HTML) 1 Page - Motorola, Inc

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5-81
FAST AND LS TTL DATA
4-BIT BINARY FULL ADDER
WITH FAST CARRY
The SN54 / 74LS83A is a high-speed 4-Bit binary Full Adder with internal
carry lookahead. It accepts two 4-bit binary words (A1–A4, B1–B4) and a
Carry Input (C0). It generates the binary Sum outputs ∑1–∑4) and the Carry
Output (C4) from the most significant bit. The LS83A operates with either
active HIGH or active LOW operands (positive or negative logic). The
SN54 / 74LS283 is recommended for new designs since it is identical in
function with this device and features standard corner power pins.
14
13
12
11
10
9
1
2
3
4
5
6
B4
7
16
15
8
Σ4
C4
C0
GND
B1
A1
Σ1
A4
Σ3
A3
Σ2
B2
A2
CONNECTION DIAGRAM DIP (TOP VIEW)
B3
VCC
NOTE:
The Flatpak version has the
same pinouts (Connection
Diagram) as the Dual In-Line
Package.
PIN NAMES
LOADING (Note a)
HIGH
LOW
A1 – A4
B1 – B4
C0
Σ1–Σ4
C4
Operand A Inputs
Operand B Inputs
Carry Input
Sum Outputs (Note b)
Carry Output (Note b)
1.0 U.L.
1.0 U.L.
0.5 U.L.
10 U.L.
10 U.L.
0.5 U.L.
0.5 U.L.
0.25 U.L.
5 (2.5) U.L.
5 (2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.
SN54/74LS83A
4-BIT BINARY FULL ADDER
WITH FAST CARRY
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
SN54LSXXJ
Ceramic
SN74LSXXN
Plastic
SN74LSXXD
SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
10 11 8 7 3 4 1 16
9 6 2 15 14
13
14
C0
B1 A2 B2 A3 B3 A4 B4
C4
∑1∑2 ∑3∑4 C4
LOGIC DIAGRAM
VCC = PIN 5
GND = PIN 12
= PIN NUMBERS
C1
C2
C3
C0 A1
B1
A2
B2
A3 B3
A4
B4
C4
∑1
∑2
∑3
∑4
15
3
4
10
11
16
1
2
6
7
9
13
8
14


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