HCC4522B datasheet(1/6 Pages) STMICROELECTRONICS

No de pièce	HCC4522B

Description	PROGRAMMABLE BCD DIVIDER-BY-N COUNTER

PDF	6 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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HCC4522B

HCF4522B

September 1990

PROGRAMMABLE BCD DIVIDER-BY-N COUNTER

PRODUCT PREVIEW

EY

(Plastic Package)

.

VERY LOW QUIESCENT CURRENT

.

HIGH NOISE IMMUNITY

.

SUPPLY VOLTAGE RANGE 3V TO 18V

.

INTERNALLY SYNCHRONOUS FOR HIGH IN-

TERNAL AND EXTERNAL SPEEDS

.

5.0MHz COUNTING RATE

.

INCREMENTED ON POSITIVE TRANSITION

OF CLOCK OR NEGATIVE TRANSITION OF

CLOCK INHIBIT

.

ASYNCHRONOUS PRESET ENABLE

ORDER CODES :

HCC4522 BF

HCF4522 BM1

HCF4522 BEY

HCF4522 BC1

F

(Ceramic Frit Seal Package)

M1

(Micro Package)

C1

(Plastic Chip Carrier)

The HCC4522B and HCF4522B are monolithic in-

tegrated circuits, available in 16-lead dual-in-line

plastic or ceramic packages and plastic micro pack-

ages.

The HCC4522B and HCF4522B are programm-

able, BCD down counters with a decoded ”0” state

output for divide-by-N applications. The counters

are cascadable. In single stage applications the ”0”

output is applied to the Preset Enable input. The

cascade feedback input allows cascade divide-by-N

operation with no additional gates required. The

clock Inhibit input allows disabling of the pulse

counting function.

Applications for these programmable divide-by-N

counters include frequency synthesizers, phase-

locked loops and other frequency dividing circuits

where low power and/or high noise immunity is re-

quired.

DESCRIPTION

PIN CONNECTION (top view)

1/6

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