Datasheet > M74HC191_01

M74HC191_01

更新时间： 2024-09-15 05:10:59

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
14页	567K
描述
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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M74HC191_01 数据手册

M74HC191

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

DIP

SOP

TSSOP

T & R

SYMMETRICAL OUTPUT IMPEDANCE:

|I | = I = 4mA (MIN)

BALANCED PROPAGATION DELAYS:

ORDER CODES

PACKAGE

PLH

PHL

WIDE OPERATING VOLTAGE RANGE:

(OPR) = 2V to 6V

TUBE

DIP

SOP

M74HC191B1R

M74HC191M1R

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 191

M74HC191RM13TR

M74HC191TTR

TSSOP

DESCRIPTION

The M74HC191 is an high speed CMOS 4-BIT

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.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

SYNCHRONOUS

UP/DOWN

COUNTER

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.

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

PIN CONNECTION AND IEC LOGIC SYMBOLS

August 2001

1/14

12 3 4 5 6 7...14

中文翻译

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与M74HC191_01相关器件

型号	品牌	获取价格	描述	数据表
M74HC191B1R	STMICROELECTRONICS	获取价格	4 BIT SYNCHRONOUS UP/DOWN COUNTERS
M74HC191C1	STMICROELECTRONICS	获取价格	暂无描述
M74HC191C1R	STMICROELECTRONICS	获取价格	4 BIT SYNCHRONOUS UP/DOWN COUNTERS
M74HC191DP	MITSUBISHI	获取价格	Binary Counter, Synchronous, Bidirectional, CMOS, PDSO16
M74HC191F1R	STMICROELECTRONICS	获取价格	4 BIT SYNCHRONOUS UP/DOWN COUNTERS
M74HC191FP	MITSUBISHI	获取价格	Binary Counter, Synchronous, Bidirectional, CMOS, PDSO16
M74HC191M1	STMICROELECTRONICS	获取价格	HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, MICR
M74HC191M1R	STMICROELECTRONICS	获取价格	4 BIT SYNCHRONOUS UP/DOWN COUNTERS
M74HC191P	MITSUBISHI	获取价格	Binary Counter, Synchronous, Bidirectional, CMOS, PDIP16
M74HC191RM13TR	STMICROELECTRONICS	获取价格	4 BIT SYNCHRONOUS UP/DOWN COUNTERS