HCC/HCF4518B

HCC/HCF4520B

June 1989

DUAL UP-COUNTERS

.

MEDIUM-SPEED OPERATION – 6MHz TYP.

CLOCK FREQUENCY AT 10V

.

POSITIVE - OR NEGATIVE - EDGE TRIGGER-

ING

.

SYNCHRONOUS INTERNAL CARRY PROPA-

GATION

.

QUIESCENT CURRENT SPECIFIED TO 20V

FOR HCC DEVICE

.

5V, 10V, AND 15V PARAMETRIC RATINGS

.

INPUT CURRENT OF 100nA AT 18V AND 25

°C

FOR HCC DEVICE

.

100% TESTED FOR QUIESCENT CURRENT

.

MEETS ALL REQUIREMENTS OF JEDEC TEN-

TATIVE STANDARD N

°13A, ”STANDARD SPE-

CIFICATIONS FOR DESCRIPTION OF ”B”

SERIES CMOS DEVICES”

DESCRIPTION

The HCC4518B/4520B (extended temperature

range) and HCF4518B/4520B (intermediate tem-

perature range) are monolithic integrated circuits,

available in 16-lead dual in-line plastic or ceramic

package

and

plastic

micro

package.

The

HCC/HCF4518B Dual BCD Up Counter and

HCC/HCF4520B Dual Binary Up Counter each con-

sist of two identical, internally synchronous 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 nega-

tive-going transition. For single-unit operation 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.

HCC/HCF4518B

DUAL BCD UP-COUNTER

HCC/HCF4520B

DUAL BINARY UP-

COUNTER

EY

(Plastic Package)

F

(Ceramic Frit Seal Package)

C1

(Plastic Chip Carrier)

ORDER CODES :

HCC45XXBF

HCF45XXBM1

HCF45XXBEY

HCF45XXBC1

PIN CONNECTIONS

M1

(Micro Package)

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