HCC4034B/HCF4034B
INPUT/OUTPUT BUS REGISTER
8-STAGE STATIC BIDIRECTIONAL PARALLEL/SERIAL

..BIDIRECTIONAL PARALLEL DATA INPUT PARALLEL OR SERIAL INPUTS/PARALLEL
.OUTPUTS ASYNCHRONOUS OR SYNCHRONOUS PAR. ALLEL DATA LOADING PARALLEL DATA-INPUT ENABLE ON ”A”
.DATA LINES (3-state output) DATA RECIRCULATION FOR REGISTER EX. PANSION .MULTIPACKAGE REGISTER EXPANSION FULLY STATIC OPERATIONAL DC-TO-5MHz
.(typ.) AT VDD = 10V QUIESCENT CURRENT SPECIFIED TO 20V
.FOR HCC DEVICE .5V, 10V, AND 15V PARAMETRIC RATINGS INPUT CURRENTOF 100nA AT 18V AND 25°C
.FOR HCC DEVICE .100% TESTEDFOR QUIESCENT CURRENT MEETSALLREQUIREMENTSOFJEDECTENTATIVESTANDARDN° 13A, ”STANDARD SPECIFICATIONS FOR DESCRIPTION OF ”B” SERIESCMOS DEVICES”
DESCRIPTION
The HCC4034B (extended temperature range) and HCF4034B (intermediate temperature range) are monolithic integrated circuits, available in 24-lead dual in-line plastic or ceramic package and plastic micro package. The HCC/HCF4034B is a static eight-stage parallel-or serial-input parallel-output register. It can be used to : 1) bidirectionally transfer parallel information between two buses ; 2) convert serial data to parallel form and direct the parallel data to either of twobuses ; 3) store (recirculate) parallel data, or 4) accept parallel datafrom either of two buses and convert that data to serial form. Inputs that control the operations include a single-phase CLOCK (CL), A DATA ENABLE (AE), ASYNCHRONOUS/
SYNCHRONOUS (A/S), A-BUS-TOB-BUS/B-BUS-TO-A-BUS (A/B), and PARALLEL/SERIAL (P/S). Data inputs include 16 bidirectional parallel data lines of which the eight Adata lines are inputs (3-state outputs) and the Bdata lines are outputs (inputs) depending on the signal level on the A/B input. In addition, an input for SERIAL DATAis also provided. All register stages are D-typemasterslave flip-flops withseparate master and slave clock