74F583 Datasheet, PDF (1/5 Pages) NXP Semiconductors – 4-bit BCD adder

April 1988
Revised March 1999
74F583
4-Bit BCD Adder
General Description
The ’F583 high-speed 4-bit, BCD full adder with internal
carry lookahead accepts two 4-bit decimal numbers (A₀–
A₃, B₀–B₃) and a Carry Input (C_n). It generates the decimal
sum outputs (S₀–S₃), and a Carry Output (C_n+4) if the sum
is greater than 9. The 'F583 is the functional equivalent of
the 82S83.
Features
s Adds two decimal numbers
s Full internal lookahead
s Fast ripple carry for economical expansion
s Sum output delay time 16.5 ns max
s Ripple carry delay time 8.5 ns max
s Input to ripple delay time 14.0 ns max
s Supply current 60 mA max
Ordering Code:
Order Number
74F583SC
74F583PC
Package Number
Package Description
M16B
16-Lead Small Outline Intergrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Logic Symbols
Connection Diagram
IEEE/IEC
Unit Loading/Fan Out
Pin
Names
A₀–A₃
B₀–B₃
C_n
S₀–S₃
C_n+4
74F
Description
U.L.
Input I_IH/I_IL
HIGH/LOW Output I_OH/I_OL
A Operand Inputs 1.0/2.0 20 µA/−1.2 mA
B Operand Inputs 1.0/2.0 20 µA/−1.2 mA
Carry Input
1.0/1.0 20 µA/−0.6 mA
Sum Outputs
50/33.3 −1 mA/20 mA
Carry Output
50/33.3 −1 mA/20 mA
© 1999 Fairchild Semiconductor Corporation DS009570.prf
www.fairchildsemi.com