DESCRIPTION
The HCC4518B/4520B (extended temperature range) and HCF4518B/4520B (intermediate temperature range) are monolithic integrated circuits, available in 16-lead dual in-line plastic or ceramic package and plastic micro package. The HCC/HCF4518B Dual BCD Up Counter and HCC/HCF4520B Dual Binary Up Counter each consist of two identical, internally synchronous 4-stage counters.

■ MEDIUM-SPEED OPERATION – 6MHz TYP. CLOCK FREQUENCY AT 10V
■ POSITIVE - OR NEGATIVE - EDGE TRIGGERING
■ SYNCHRONOUS INTERNAL CARRY PROPAGATION
■ QUIESCENT CURRENT SPECIFIED TO 20V FOR HCC DEVICE
■ 5V, 10V, AND 15V PARAMETRIC RATINGS
■ INPUT CURRENT OF 100nA AT 18V AND 25°C FOR HCC DEVICE
■ 100% TESTED FOR QUIESCENT CURRENT
■ MEETS ALL REQUIREMENTS OF JEDECTENTATIVE STANDARD N° 13A, ”STANDARD SPECIFICATIONS FOR DESCRIPTION OF ”B” SERIES CMOS DEVICES”