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부품번호 | 54122 기능 |
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기능 | Retriggerable Resettable Multivibrator | ||
제조업체 | National Semiconductor | ||
로고 | |||
전체 6 페이지수
June 1989
54122 DM74122
Retriggerable Resettable Multivibrator
General Description
The ’122 features positive and negative DC level triggering
inputs complementary outputs an optional 10 kX internal
timing resistor and an overriding Direct Clear (CD) input
When the circuit is in the quasi-stable (delay) state another
trigger applied to the inputs (per Truth Table) will cause the
delay period to start again without disturbing the outputs
This process can be repeated indefinitely and thus the out-
put pulse period (Q HIGH Q LOW) can be made as long as
desired Alternatively a delay period can be terminated
by a LOW signal applied to CD which also prevents trigger-
ing An internal connection from CD to the input gate makes
it possible to trigger the circuit by a positive-going signal on
CD as shown in the Truth Table For timing capacitor values
greater than 1000 pF the output pulse width is defined as
follows
tw e 0 32 RXCX (1 0 a 0 7 RX)
Where tw is in ns RX is in kX and CX is in pF
Connection Diagram
Logic Symbol
Dual-In-Line Package
TL F 10212 – 1
Order Number 54122DMQB 54122FMQB or DM74122N
See NS Package Number J14A N14A or W14B
VCC e Pin 14
GND e Pin 7
NC e Pins 10 and 12
Pin Names
A1 A2
B1 B2
CD
QQ
Description
Trigger Inputs (Active Falling Edge)
Trigger Inputs (Active Rising Edge)
Direct Clear Inputs (Active LOW)
Outputs
TL F 10212 – 2
C1995 National Semiconductor Corporation TL F 10212
RRD-B30M105 Printed in U S A
Pulse Width vs RX and CX
Timing Capacitor CX – pF
TL F 10212 – 3
FIGURE A
TL F 10212 – 4
4
4페이지 | |||
구 성 | 총 6 페이지수 | ||
다운로드 | [ 54122.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
54120 | Dual Pulse Synchronizers/Drivers | Texas Instruments |
54121 | One-Shot with Clear and Complementary Outputs | National Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |