4-BIT BINARY FULL ADDER WITH FAST CARRY
The SN54 / 74LS83A is a high-speed 4-Bit binary Full Adder with internal carry l...
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.
CONNECTION DIAGRAM DIP (TOP VIEW)
B4 Σ4 C4 C0 GND B1 A1 Σ1 16 15 14 13 12 11 10 9
NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package.
12 A4 Σ3
3 4 56 A3 B3 VCC Σ2
78 B2 A2
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.
C0 A1 B1
13 10 11
A2 B2
87
LOGIC DIAGRAM
A3 B3
34
A4 B4
1 16
VCC = PIN 5 GND = PIN 12
= PIN NUMBERS
SN54/74LS83A
4-BIT BINARY FULL ADDER WITH FAST CARRY
LOW POWER
SCHOTTKY
16 1
J SUFFIX CERAMIC CASE 620-09
16 1
N SUFFIX PLASTIC CASE 648-08
16 1
D SUFFIX SOIC
CASE 751B-03
ORDERING INF...