DESCRIPTION
The HCC4560B and HCF4560B are monolithic integrated circuits, available in 16-lead dual-in-line plastic or ceramic packages and plastic micro packages.
The HCC4560B and HCF4560B add two 4-bit numbers in NBCD (natural binary coded decimal) format, resulting in sum and carry outputs in NBCD code.
All inputs and outputs are active high. The carry inputfor the least significant digitis connected to VSS for no carry in.

■ VERY LOW QUIESCENT CURRENT
■ HIGH NOISE IMMUNITY
■ SINGLE SUPPLY OPERATION - POSITIVE OR NEGATIVE
■ SUPPLY VOLTAGE RANGE 3V TO 18V
■ DIODE PROTECTION ON ALL INPUTS