HCF40161B datasheet(1/14 Pages) STMICROELECTRONICS

Il numero della parte	HCF40161B

Spiegazioni elettronici	SYNCHRONOUS PROGRAMMABLE 4-BIT BINARY COUNTER WITH ASYNCHRONOUS CLEAR

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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September 2002

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INTERNAL LOOK-AHEAD FOR FAST

COUNTING

s

CARRY OUTPUT FOR CASCADING

s

SYNCHRONOUSLY PROGRAMMABLE

s

LOW-POWER TTL COMPATIBILITY

s

STANDARDIZED SYMMETRICAL OUTPUT

CHARACTERISTICS

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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

HCF40161B is a monolithic integrated circuit

fabricated

in

Metal

Oxide

Semiconductor

technology available in DIP and SOP packages.

HCF40161B is a 4-bit synchronous programmable

counter. The CLEAR function is asynchronous. A

low level at the CLEAR input sets all four outputs

low regardless of the state of the CLOCK, LOAD

and ENABLE inputs. A low level at the LOAD

inputs disables the counter and causes the output

to agree with the set-up data after the following

CLOCK pulse regardless of the conditions of the

ENABLE inputs. The carry look-ahead circuitry

provides

for

cascading

counter

for

n-bit

synchronous application without additional gating.

Counting is enabled when both the PE and TE

inputs are high. The TE input is fed forward to

enable COUT. This enable output produces a

positive

output

pulse

with

a

duration

approximately equal to the positive portion of the

Q1 output. This positive overflow carry pulse can

be used to enable successive cascaded stages.

Logic transitions at the PE and TE inputs may

occur when the clock is either high or low.

HCF40161B

SYNCHRONOUS PROGRAMMABLE 4-BIT BINARY

COUNTER WITH ASYNCHRONOUS CLEAR

PIN CONNECTION

ORDER CODES

PACKAGE

TUBE

T & R

DIP

HCF40161BEY

SOP

HCF40161BM1

HCF40161M013TR

DIP

SOP

Codice articolo simile - HCF40161B

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
STMicroelectronics	HCF40161B	310Kb / 15P	SYNCHRONOUS PROGRAMMABLE 4-BIT COUNTERS Sep-1988
	HCF40161BC1	310Kb / 15P	SYNCHRONOUS PROGRAMMABLE 4-BIT COUNTERS Sep-1988
	HCF40161BEY	310Kb / 15P	SYNCHRONOUS PROGRAMMABLE 4-BIT COUNTERS Sep-1988
	HCF40161BF	310Kb / 15P	SYNCHRONOUS PROGRAMMABLE 4-BIT COUNTERS Sep-1988
	HCF40161BM1	310Kb / 15P	SYNCHRONOUS PROGRAMMABLE 4-BIT COUNTERS Sep-1988

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HCF40161B Scheda tecnica(PDF) 1 Page - STMicroelectronics

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