1.

General description

The HEF4020B is a 14-stage binary counter with a clock input (CP), an overriding

asynchronous master reset input (MR) and twelve fully buffered outputs (Q0, and Q3 to

Q13). The counter advances on the HIGH to LOW transition of CP. A HIGH on MR clears

all counter stages and forces all outputs LOW, independent of the state of CP. Each

counter stage is a static toggle flip-flop. A feature of the device is its high speed

also suitable for use over the full industrial (

−40 °C to +85 °C) temperature range.

2.

Features

3.

Applications

4.

Ordering information

HEF4020B

14-stage binary counter

Rev. 04 — 4 December 2008

Product data sheet

Table 1.

Ordering information

All types operate from

−40 °C to +85 °C.

Type number

Package

Name

Description

Version

HEF4020BP

DIP16

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

SOT38-4

HEF4020BT

SO16

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

SOT109-1