Datasheet > M54HC191K1

M54HC191K1

更新时间： 2024-10-01 05:00:59

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
13页	393K
描述
RAD-HARD 4 BIT SYNCHRONOUS UP/DOWN COUNTERS

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中文翻译

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数据手册

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M54HC191K1 数据手册

M54HC191

RAD-HARD 4 BIT SYNCHRONOUS UP/DOWN COUNTERS

■

HIGH SPEED:

= 61 MHz (TYP.) at V = 6V

MAX

LOW POWER DISSIPATION:

=4µA(MAX.) at T =25°C

HIGH NOISE IMMUNITY:

= V = 28% V (MIN.)

NIH

NIL

DILC-16

FPC-16

SYMMETRICAL OUTPUT IMPEDANCE:

|I | = I = 4mA (MIN)

BALANCED PROPAGATION DELAYS:

ORDER CODES

PACKAGE

PLH

PHL

WIDE OPERATING VOLTAGE RANGE:

(OPR) = 2V to 6V

DILC

FPC

M54HC191D

M54HC191K

M54HC191D1

M54HC191K1

PIN AND FUNCTION COMPATIBLE WITH

54 SERIES 191

■

SPACE GRADE-1: ESA SCC QUALIFIED

50 krad QUALIFIED, 100 krad AVAILABLE ON

REQUEST

NO SEL UNDER HIGH LET HEAVY IONS

IRRADIATION

DEVICE FULLY COMPLIANT WITH

SCC-9204-066

An asynchronous parallel load input overrides

counting and loads the data present on the DATA

inputs into the flip-flops, which makes it possible to

use the circuits as programmable counters. A

count enable input serves as the carry/borrow

input in multi-stage counters. Control input, Down/

Up, determines whether a circuit counts up or

down. A MAX/MIN output and a Ripple Clock

output provide overflow/underflow indication and

make possible a variety of methods for generating

carry/borrow signals in multi-stage counter

applications.

■

DESCRIPTION

The M54HC191 is an high speed CMOS 4-BIT

SYNCHRONOUS

fabricated with silicon gate C MOS technology.

State changes of the counter are synchronous

with the LOW-to-HIGH transition of the Clock

Pulse Input.

UP/DOWN

COUNTER

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

PIN CONNECTION

March 2004

1/13

12 3 4 5 6 7...13

中文翻译

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