파트넘버.co.kr 74HCT123 데이터시트 PDF


74HCT123 반도체 회로 부품 판매점

Dual retriggerable monostable multivibrator



NXP Semiconductors 로고
NXP Semiconductors
74HCT123 데이터시트, 핀배열, 회로
74HC123; 74HCT123
Dual retriggerable monostable multivibrator with reset
Rev. 10 — 3 December 2015
Product data sheet
1. General description
The 74HC123; 74HCT123 are high-speed Si-gate CMOS devices and are pin compatible
with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC
standard no. 7A.
The 74HC123; 74HCT123 are dual retriggerable monostable multivibrators with output
pulse width control by three methods:
1. The basic pulse is programmed by selection of an external resistor (REXT) and
capacitor (CEXT).
2. Once triggered, the basic output pulse width may be extended by retriggering the
gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB). By
repeating this process, the output pulse period (nQ = HIGH, nQ = 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.
3. An internal connection from nRD to the input gates makes it possible to trigger the
circuit by a HIGH-going signal at input nRD as shown in Table 3.
Schmitt-trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower
input rise and fall times.
The 74HC123; 74HCT123 are identical to the 74HC423; 74HCT423 but can be triggered
via the reset input.
2. Features and benefits
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
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Specified from 40 C to +85 C and from 40 C to +125 C


74HCT123 데이터시트, 핀배열, 회로
NXP Semiconductors
74HC123; 74HCT123
Dual retriggerable monostable multivibrator with reset
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74HC123D
40 C to +125 C SO16
74HCT123D
74HC123DB 40 C to +125 C SSOP16
74HCT123DB
74HC123PW 40 C to +125 C TSSOP16
74HCT123PW
74HC123BQ 40 C to +125 C DHVQFN16
Description
plastic small outline package; 16 leads;
body width 3.9 mm
plastic shrink small outline package; 16 leads;
body width 5.3 mm
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 16 terminals;
body 2.5 3.5 0.85 mm
Version
SOT109-1
SOT338-1
SOT403-1
SOT763-1
4. Functional diagram
$ 
% 
5' 
$ 
% 
5' 
Fig 1. Functional diagram
6
4
7
4
5'
6
4
7
4
5'
 &(;7
 5(;7&(;7
 4
 4
 &(;7
 5(;7&(;7
 4
 4
DDD
74HC_HCT123
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 10 — 3 December 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
2 of 24




PDF 파일 내의 페이지 : 총 24 페이지

제조업체: NXP Semiconductors

( nxp )

74HCT123 data

데이터시트 다운로드
:

[ 74HCT123.PDF ]

[ 74HCT123 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


74HCT123

Dual retriggerable monostable multivibrator with reset - Philips



74HCT123

Dual retriggerable monostable multivibrator - NXP Semiconductors



74HCT123-Q100

Dual retriggerable monostable multivibrator - NXP Semiconductors



74HCT125

Quad buffer/line driver 3-state - Philips



74HCT125

QUADRUPLE 3-STATE BUFFERS OE LOW - Diodes



74HCT125

Quad buffer/line driver - NXP Semiconductors



74HCT126

Quad buffer/line driver 3-state - Philips



74HCT126

QUADRUPLE 3-STATE BUFFERS OE HIGH - Diodes



74HCT1284

Parallel printer interface transceiver/buffer - Philips