1.

General description

The HEF4094B is an 8-stage serial shift register. It has a storage latch associated with

each stage for strobing data from the serial input to parallel buffered 3-state outputs

QP0 to QP7. The parallel outputs may be connected directly to common bus lines. Data is

shifted on positive-going clock transitions. The data in each shift register stage is

transferred to the storage register when the strobe (STR) input is HIGH. Data in the

storage register appears at the outputs whenever the output enable (OE) signal is HIGH.

Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4094B

devices. Serial data is available at QS1 on positive-going clock edges to allow high-speed

operation in cascaded systems with a fast clock rise time. The same serial data is

available at QS2 on the next negative going clock edge. This is used for cascading

HEF4094B devices when the clock has a slow rise time.

also suitable for use over the industrial (

−40 °C to +85 °C) and automotive (−40 °C to

+125

°C) temperature ranges.

2.

Features

3.

Ordering information

HEF4094B

8-stage shift-and-store bus register

Rev. 04 — 30 October 2008

Product data sheet

Table 1.

Ordering information

All types operate from

−40 °C to +125 °C.

Type number

Package

Name

Description

Version

HEF4094BP

DIP16

plastic dual in-line package; 16-leads (300 mil)

SOT38-4

HEF4094BT

SO16

plastic small outline package; 16 leads; body width 3.9 mm

SOT109-1

HEF4094BTS

SSOP16

plastic shrink small outline package; 16 leads; body width 5.3 mm

SOT338-1