HCF4521B datasheet(1/12 Pages) STMICROELECTRONICS

部品番号	HCF4521B

部品情報	24 STAGE FREQUENCY DIVIDER

PDF	12 Pages

Scroll/Zoom	100%

メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

Logo

1 / 12 page

HCF4521B

24 STAGE FREQUENCY DIVIDER

®

February 1999

s

VERY LOW QUIESCENT CURRENT

s

HIGH NOISE IMMUNITY

s

VOLTAGE SUPPLY RANGE 3V TO 18V

s

ALL STAGES ARE RESETTABLE

s

RESET DISABLES THE RC OSCILLATOR FOR

LOW STANDBY POWER DRAIN

s

RC AND CRYSTAL OSCILLATOR OUTPUT

ARE CAPABLE OF DRIVING EXTERNAL

LOADS

DESCRIPTION

The HCF4521B is a monolithic integrated circuit,

available in 16-lead dual-in-line plastic package

and plastic micro packages.

The HCF4521B have a chain of 24 flip-flops with

an input circuit that allows three modes of

operation. The input circuit functions as a crystal

or an RC oscillator or as an input buffer for an

external oscillator. Each flip-flop performs a

divide-by-two function giving a total count of 2

24 =

16,777,216. The count advances on the negative

going edge of the clock. Access is available to the

final seven stages giving the device added

flexibility.

PIN CONNECTION

M1

(Micro Package)

EY

(Plastic Package)

ORDER CODES :

HCF4521BEY

HCF4521BM1

1/12

同様の部品番号 - HCF4521B

メーカー	部品番号	データシート	部品情報
STMicroelectronics	HCF4520B	912Kb / 12P	DUAL BINARY UP COUNTER Oct-2002
	HCF4520B	315Kb / 14P	DUAL UP-COUNTERS Jun-1989
	HCF4520BEY	912Kb / 12P	DUAL BINARY UP COUNTER Oct-2002
	HCF4520BM1	912Kb / 12P	DUAL BINARY UP COUNTER Oct-2002
	HCF4520M013TR	912Kb / 12P	DUAL BINARY UP COUNTER Oct-2002

More results

同様の説明 - HCF4521B

メーカー	部品番号	データシート	部品情報
ON Semiconductor	MC14521B	219Kb / 9P	24-Stage Frequency Divider September, 2009 ??Rev. 7
NXP Semiconductors	HEF4521B	159Kb / 11P	24-stage frequency divider and oscillator January 1995
Texas Instruments	CD4521B	282Kb / 8P	CMOS 24-STAGE FREQUENCY DIVIDER
Hitachi Semiconductor	HD14521B	97Kb / 6P	24-Stage Frequency Divider
Toshiba Semiconductor	TC4521BP	396Kb / 9P	24-Stage Frequency Divider
NXP Semiconductors	HEF4521B	114Kb / 17P	24-stage frequency divider and oscillator Rev. 05-5 November 2009
Texas Instruments	CD4521BE	1Mb / 18P	CMOS 24-Stage Frequency Divider
Texas Instruments	CD4521B	1Mb / 18P	CMOS 24-STAGE FREQUENCY DIVIDER
ON Semiconductor	MC14521B	188Kb / 9P	24-Stage Frequency Divider September, 2009 ??Rev. 7
Nexperia B.V. All right...	HEF4521B	266Kb / 15P	24-stage frequency divider and oscillator 3 December 2021