HCF4516B datasheet(1/11 Pages) STMICROELECTRONICS

Numer części	HCF4516B

Szczegółowy opis	PRESETTABLE BINARY UP/DOWN COUNTER

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Producent	STMICROELECTRONICS [STMicroelectronics]

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1/11

September 2002

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MEDIUM SPEED OPERATION :

8 MHz (Typ.) at 10V

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SYNCHRONOUS INTERNAL CARRY

PROPAGATION

s

RESET AND PRESET CAPABILITY

s

STANDARDIZED SYMMETRICAL OUTPUT

CHARACTERISTICS

s

QUIESCENT CURRENT SPECIF. UP TO 20V

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5V, 10V AND 15V PARAMETRIC RATINGS

s

INPUT LEAKAGE CURRENT

II = 100nA (MAX) AT VDD = 18V TA = 25°C

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100% TESTED FOR QUIESCENT CURRENT

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MEETS ALL REQUIREMENTS OF JEDEC

JESD13B "STANDARD SPECIFICATIONS

FOR DESCRIPTION OF B SERIES CMOS

DEVICES"

DESCRIPTION

HCF4516B is a monolithic integrated circuit

fabricated

in

Metal

Oxide

Semiconductor

technology available in DIP package.

It is a PRESETTABLE BINARY UP/DOWN

COUNTER,

consists

of

four

synchronously

clocked D-type flip-flops (with a gating structure to

provide T-type flip-flop capability) connected as a

counter. This counter can be cleared by a high

level on the RESET line, and can be preset to any

binary number present on the jam inputs by a high

level on the PRESET ENABLE line. Synchronous

cascading is accomplished by connecting all clock

inputs in parallel and connecting the CARRY OUT

of a less significant stage to the CARRY IN of a

more

significant

stage.

HCF4516B

can

be

cascaded in the ripple mode by connecting all

clock inputs in parallel and connecting the CARRY

OUT to the clock of the next stage. If the UP/

DOWN input changes during a terminal count, the

CARRY OUT must be gated with the clock, and

the UP/DOWN input must change while the clock

is high. This method provides a clean clock signal

to the subsequent counting stage.

HCF4516B

PRESETTABLE BINARY UP/DOWN COUNTER

PIN CONNECTION

ORDER CODES

PACKAGE

TUBE

T & R

DIP

HCF4516BEY

DIP

Podobny numer części - HCF4516B

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STMicroelectronics	HCF4516B	136Kb / 12P	PRESETTABLE UP/DOWN COUNTERS
	HCF4516BEY	136Kb / 12P	PRESETTABLE UP/DOWN COUNTERS
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