DESCRIPTION
The HCC4555B, HCC4556B (extended temperature range) and the HCF4555B, HCF4556B (intermediate temperature range) are monolithic integrated circuits available in 16-lead dual in-line plastic or ceramic package and plastic micropackage.
The HCC/HCF4555B and HCC/HCF4556B are dual one-of-four decoders/demultiplexers• Each decoder has two select inputs (A and B), an Enable input (E), and four mutually exclusive outputs• On the HCC/HCF4555B the outputs are high on select; on the HCC/HCF4556B the outputs are low on select• When the Enable input is high, the outputs of the HCC/HCF4555B remain low and the outputs of the HCC/HCF4556B remain high regardless of the state of the select inputs A and B.

4555B OUTPUTS HIGH ON SELECT
4556B OUTPUTS LOW ON SELECT

■ EXPANDABLE WITH MULTIPLE PACKAGES
■ STANDARD, SYMMETRICAL OUTPUT CHARACTERISTICS
■ 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 No• 13A, ”STANDARD
   SPECIFICATIONS FOR DESCRIPTION OF ”B” SERIES CMOS DEVICES”