SN74LS283N ,4-BIT BINARY FULL ADDER WITH FAST CARRYSN54/74LS2834-BIT BINARY FULL ADDERWITH FAST CARRYThe SN54 /74LS283 is a high-speed 4-Bit Binary Fu ..
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SP0102NC3-2 , surface mounted via standard solder reflow equipment
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SN54LS283J-SN74LS283N
4-BIT BINARY FULL ADDER WITH FAST CARRY
4-BIT BINARY FULL ADDER
WITH FAST CARRYThe SN54/74LS283 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 LS283 operates with either ac-
tive HIGH or active LOW operands (positive or negative logic).
VCC A3 Σ3 A4 Σ4B4 C4 A2 Σ1 A1 B1 C0 GND
CONNECTION DIAGRAM DIP (TOP VIEW)NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
PIN NAMES LOADING (Note a)A1–A4 Operand A Inputs
B1–B4 Operand B Inputs Carry Input
∑1–∑4 Sum Outputs (Note b) Carry Output (Note b)
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.
