Datasheet > HCF4522B

HCF4522B

更新时间： 2024-11-18 22:55:03

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		计数器
页数	文件大小	规格书
6页	205K
描述
PROGRAMMABLE BCD DIVIDER-BY-N COUNTER

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中文翻译

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数据手册

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HCF4522B 数据手册

HCC4522B

HCF4522B

PROGRAMMABLE BCD DIVIDER-BY-N COUNTER

PRODUCT PREVIEW

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

(Plastic Package)

(Ceramic Frit Seal Package)

ASYNCHRONOUS PRESET ENABLE

(Micro Package)

(Plastic Chip Carrier)

ORDER CODES :

HCC4522 BF

HCF4522 BEY

HCF4522 BM1

HCF4522 BC1

PIN CONNECTION (top view)

DESCRIPTION

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 allowscascade 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.

September 1990

1/6

12 3 4 5 6

中文翻译

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