파트넘버.co.kr U74HC123 데이터시트 PDF


U74HC123 반도체 회로 부품 판매점

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR



Unisonic Technologies 로고
Unisonic Technologies
U74HC123 데이터시트, 핀배열, 회로
UNISONIC TECHNOLOGIES CO., LTD
U74HC123
CMOS IC
DUAL RETRIGGERABLE
MONOSTABLE
MULTIVIBRATOR WITH
RESET
SOP-16
DESCRIPTION
The U74HC123 is high-speed Si-gate CMOS device and is pin
compatible with low power Schottky TTL (LSTTL).
The U74HC123 is a dual retriggerable monostable
multivibrator with output pulse width control by three methods.
The basic pulse time is programmed by selection of an external
resistor (REXT) and capacitor (CEXT).
Once triggered, the basic output pulse width may be extended
TSSOP-16
by retriggering the gated active LOW-going edge input( n A ) or
the active HIGH-going edge input (nB). By repeating this process,
the output pulse period (nQ=HIGH, n Q =LOW) can be made as long as desired. Alternatively an output delay can be
terminated at any time by a LOW-going edge on input nRD , which also inhibits the triggering.
An internal connection from nRD to the input gates makes it possible to trigger the circuit by a positive-going
signal at input nRD as shown in the function table. The basic output pulse width is essentially determined by the
values of the external timing components REXT and CEXT.
Schmitt-trigger action in the n A and nB inputs, makes the circuit highly tolerant to slower input rise and fall
times.
FEATURES
* DC triggered from active HIGH or active LOW inputs
* Retriggerable for very long pulses up to 100% duty factor
* Direct reset terminates output pulse
* Schmitt-trigger action on all inputs except for the reset input
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74HC123L-S16-R
U74HC123G-S16-R
U74HC123L-S16-T
U74HC123G-S16-T
U74HC123L-P16-R
U74HC123G-P16-R
U74HC123L-P16-T
U74HC123G-P16-T
Package
SOP-16
SOP-16
TSSOP-16
TSSOP-16
Packing
Tape Reel
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 10
QW-R502-A10.A
http://www.Datasheet4U.com


U74HC123 데이터시트, 핀배열, 회로
U74HC123
PIN CONFIGURATION
CMOS IC
FUNCTION TABLE
INPUTS
n RD
nA
LX
XH
XX
HL
nB
X
X
L
OUTPUTS
nQ n Q
LH
L(2) H(2)
L(2) H(2)
HH
LH
Note: 1. H: HIGH voltage level L: LOW voltage level X: don’care : LOW-to-HIGH transition
: HIGH-to-LOW transition
: one HIGH level output pulse
: one LOW level output pulse
2. If the monostable was triggered before this condition was established, the pulse will continue as
programmed.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 10
QW-R502-A10.A
http://www.Datasheet4U.com




PDF 파일 내의 페이지 : 총 10 페이지

제조업체: Unisonic Technologies

( utc )

U74HC123 data

데이터시트 다운로드
:

[ U74HC123.PDF ]

[ U74HC123 다른 제조사 검색 ]




국내 전력반도체 판매점


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743



일반적인 전자부품 판매점


디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14


관련 데이터시트


U74HC123

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR - Unisonic Technologies