DESCRIPTION
OF ”B” SERIES CMOS DEVICES” EY (Plastic Package) F (Ceramic Frit Seal Package) M1 (Micro Package) ORDER CODES : HCC4034BF HCF4034BEY HCF4034BM1 PIN CONNECTIONS DESCRIPTION
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 data from 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 A data lines are inputs (3-state outputs) and the B data lines are outputs (inputs) depending on the signal level on the A/B input. In addition, an input for SERIAL DATA is also provided. All register stages are D-type masterslave flip-flops wi...
STMicroelectronics
