SN54/74LS283 4-BIT BINARY FULL ADDER WITH FAST CARRY
The SN54 / 74LS283 is a high-speed 4-Bit Binary Full Adder with int...
SN54/74LS283 4-BIT BINARY FULL ADDER WITH FAST CARRY
The SN54 / 74LS283 is a high-speed 4-Bit Binary Full Adder with internal carry lookahead. It accepts two 4-bit binary words (A1 – A4, B 1 – 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 LS283 operates with either active HIGH or active LOW operands (positive or negative logic).
4-BIT BINARY FULL ADDER WITH FAST CARRY
LOW POWER
SCHOTTKY
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC 16 B3 15 A3 14 Σ3 13 A4 12 B4 11 Σ4 10 C4 9
NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 16 1
J SUFFIX CERAMIC CASE 620-09
1 Σ2
2 B2
3 A2
4 Σ1
5 A1
6 B1
7 C0
8 GND
16 1
N SUFFIX PLASTIC CASE 648-08
PIN NAMES
LOADING (Note a) HIGH LOW 0.5 U.L. 0.5 U.L. 0.25 U.L. 5 (2.5) U.L. 5 (2.5) U.L.
16 1
D SUFFIX SOIC CASE 751B-03
A1 – A4 B1–B4 C0 ∑1 – ∑4 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.
ORDERING INFORMATION
SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC
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.
LOGIC SYMBOL
5 3 14 12 6 2 15 11
A1 A2 A3 A4 B1 B2 B3 B4 7 C0 ∑1 ∑2 ∑3 ∑4 4 1 13 10 C4 9
VCC = PIN 16 GND = PIN 8
FAST AND LS TTL DATA 5-1
SN54/74LS283
LOGIC DIAGRAM
C0
7
A1
5
B...
