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HD74LS83A Datasheet, PDF (6/8 Pages) Hitachi Semiconductor – 4-Bit Binary Full Adders(with Fast Carry)
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HD74LS83A
Testing Table
Item
tPLH
tPHL
From input
to output
CO → Σi or C4
Ai or Bi
→ Σi or C4
B4
GND
GND
A4
GND
GND
GND GND
GND GND
GND GND
GND IN
IN GND
GND GND
GND GND
GND GND
4.5 v IN
IN
4.5 v
B3
GND
GND
GND
GND
GND
IN
GND
GND
GND
4.5 v
IN
GND
A3
GND
4.5 v
GND
GND
IN
GND
GND
GND
GND
IN
4.5 v
GND
Input
B2
GND
GND
A2
GND
4.5 v
GND GND
GND IN
IN GND
GND GND
GND GND
GND GND
4.5 v IN
IN 4.5 v
GND GND
GND GND
B1
GND
GND
GND
IN
GND
GND
GND
4.5 v
IN
GND
GND
GND
A1
GND
4.5 v
IN
GND
GND
GND
GND
IN
4.5 v
GND
GND
GND
C0
IN
IN
GND
GND
GND
GND
GND
GND
GND
GND
C4
—
OUT
—
—
—
—
—
—
—
OUT
Σ4
—
OUT
Output
Σ3
—
OUT
Σ2
—
OUT
—
—
—
—
— OUT
— OUT —
OUT —
—
—
— OUT
— OUT OUT
OUT OUT —
OUT —
—
Σ1
OUT
OUT
OUT
—
—
—
OUT
—
—
—
Rev.2.00, Feb.18.2005, page 6 of 7
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