© 2004 Fairchild Semiconductor Corporation

DS009513

www.fairchildsemi.com

April 1988

Revised January 2004

74F283

4-Bit Binary Full Adder with Fast Carry

General Description

The 74F283 high-speed 4-bit binary full adder with internal

significant bit. The 74F283 will operate with either active

HIGH or active LOW operands (positive or negative logic).

Ordering Code:

Logic Symbols

IEEE/IEC

Connection Diagram

Unit Loading/Fan Out

Order Number

Package Number

Package Description

74F283SC

M16A

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow

74F283PC

N16E

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide

Pin Names

Description

U.L.

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