SL4034B

System Logic

Semiconductor

SLS

8-Stage Static Bidirectional Parallel/

Serial Input/Output Bus Register

High-Voltage Silicon-Gate CMOS

The SL4034B 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 two buses, 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-TO-B-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) dependung 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 master-slave flip-flops with

separate master and slave clock inputs generated internally to allow

synchronous or asynchronous data transfer from master to slave.

• Operating Voltage Range: 3.0 to 18 V

• Maximum input current of 1 µA at 18 V over full package-

temperature range; 100 nA at 18 V and 25

°C

• Noise margin (over full package temperature range):

1.0 V min @ 5.0 V supply

2.0 V min @ 10.0 V supply

2.5 V min @ 15.0 V supply

ORDERING INFORMATION

SL4034BD SOIC

° to 125° C

for package

PIN ASSIGNMENT

LOGIC DIAGRAM

PIN 12= GND