SN74LS283 Datasheet, PDF (2/8 Pages) ON Semiconductor – LOW POWER SCHOTTKY

SN74LS283
CONNECTION DIAGRAM DIP (TOP VIEW)
V_CC B₃ A₃ Σ₃ A₄ B₄ Σ₄ C₄
16 15 14 13 12 11 10 9
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
1 2 3 4 56 78
Σ₂ B₂ A₂ Σ₁ A₁ B₁ C₀ GND
PIN NAMES
A₁ – A₄
B₁ – B₄
C₀
S₁ – S₄
C₄
Operand A Inputs
Operand B Inputs
Carry Input
Sum Outputs
Carry Output
LOADING (Note a)
HIGH
LOW
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 U.L.
5 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW.
LOGIC SYMBOL
5 3 14 12 6 2 15 11
A₁ A₂ A₃ A₄ B₁ B₂ B₃ B₄
7 C₀
C₄
9
∑₁ ∑₂ ∑₃ ∑₄
4 1 13 10
V_CC = PIN 16
GND = PIN 8
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