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October 2002

s

MEDIUM SPEED OPERATION :

6MHz (Typ.) at 10V

s

POSITIVE -OR NEGATIVE- EDGE

TRIGGERING

s

SYNCHRONOUS INTERNAL CARRY

PROPAGATION

s

QUIESCENT CURRENT SPECIF. UP TO 20V

s

5V, 10V AND 15V PARAMETRIC RATINGS

s

INPUT LEAKAGE CURRENT

s

100% TESTED FOR QUIESCENT CURRENT

s

MEETS ALL REQUIREMENTS OF JEDEC

JESD13B "STANDARD SPECIFICATIONS

FOR DESCRIPTION OF B SERIES CMOS

DEVICES"

DESCRIPTION

HCF4520B is a monolithic integrated circuit

fabricated

in

Metal

Oxide

Semiconductor

technology available in DIP and SOP packages.

HCF4520B, a Dual Binary Up Counter, consists of

two identical, internal 4-stage counters. The

counter stages are D-type Flip-Flops having

interchangeable Clock and Enable lines for

incrementing on either the positive-going or

negative

going

transitions.

For

single-unit

operations the Enable input is maintained High

and the counter advances on each positive going

transition of the Clock. The counters are cleared

by high levels on their Reset lines. The counter

can be cascaded in the ripple mode by connecting

Q4 to the enable input of the subsequent counter

while the clock input of the latter is held low.

HCF4520B

DUAL BINARY UP COUNTER

PIN CONNECTION

ORDER CODES

PACKAGE

TUBE

T & R

DIP

HCF4520BEY

SOP

HCF4520BM1

HCF4520M013TR

DIP

SOP