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SN54LV123AFK PDF预览

SN54LV123AFK

更新时间： 2024-11-26 22:59:15
品牌 Logo 应用领域
德州仪器 - TI 预分频器多谐振动器触发器逻辑集成电路输入元件时钟
页数 文件大小 规格书
14页 225K
描述
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

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SN54LV123AFK 技术参数

生命周期：Obsolete零件包装代码：QLCC
包装说明：CERAMIC, LCC-20针数：20
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.84Is Samacsys：N
系列：TTL/H/LJESD-30 代码：S-CQCC-N20
长度：8.89 mm逻辑集成电路类型：MONOSTABLE MULTIVIBRATOR
数据/时钟输入次数：2功能数量：2
端子数量：20最高工作温度：125 °C
最低工作温度：-55 °C输出极性：COMPLEMENTARY
封装主体材料：CERAMIC, METAL-SEALED COFIRED封装代码：QCCN
封装形状：SQUARE封装形式：CHIP CARRIER
传播延迟（tpd）：37 ns认证状态：Not Qualified
座面最大高度：2.03 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2 V标称供电电压 (Vsup)：2.5 V
表面贴装：YES技术：CMOS
温度等级：MILITARY端子形式：NO LEAD
端子节距：1.27 mm端子位置：QUAD
宽度：8.89 mmBase Number Matches：1

SN54LV123AFK 数据手册

 浏览型号SN54LV123AFK的Datasheet PDF文件第2页浏览型号SN54LV123AFK的Datasheet PDF文件第3页浏览型号SN54LV123AFK的Datasheet PDF文件第4页浏览型号SN54LV123AFK的Datasheet PDF文件第5页浏览型号SN54LV123AFK的Datasheet PDF文件第6页浏览型号SN54LV123AFK的Datasheet PDF文件第7页 
SN54LV123A, SN74LV123A  
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS  
WITH SCHMITT-TRIGGER INPUTS  
SCLS393A – APRIL 1998 – REVISED DECEMBER 1999  
SN54LV123A . . . J OR W PACKAGE  
SN74LV123A . . . D, DB, DGV, NS, OR PW PACKAGE  
(TOP VIEW)  
EPIC (Enhanced-Performance Implanted  
CMOS) Process  
Schmitt-Trigger Circuitry on A, B, and CLR  
Inputs for Slow Input Transition Rates  
1A  
1B  
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
1R /C  
Edge Triggered From Active-High or  
Active-Low Gated Logic Inputs  
ext ext  
1CLR  
1Q  
1C  
1Q  
ext  
Retriggerable for Very Long Output Pulses,  
up to 100% Duty Cycle  
2Q  
12 2Q  
11  
10  
9
2C  
2CLR  
2B  
ext  
Overriding Clear Terminates Output Pulse  
Glitch-Free Power-Up Reset on Outputs  
2R /C  
ext ext  
GND  
2A  
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
SN54LV123A . . . FK PACKAGE  
(TOP VIEW)  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
– 1000-V Charged-Device Model (C101)  
Package Options Include Plastic  
Small-Outline (D, NS), Shrink Small-Outline  
(DB), Thin Very Small-Outline (DGV), and  
Thin Shrink Small-Outline (PW) Packages,  
Ceramic Flat (W) Packages, Chip Carriers  
(FK), and DIPs (J)  
3
2
1 20 19  
18  
1C  
1Q  
1CLR  
1Q  
4
5
6
7
8
ext  
17  
16  
NC  
NC  
15 2Q  
14  
9 10 11 12 13  
2Q  
2CLR  
2C  
ext  
description  
The ’LV123A devices are dual retriggerable  
monostable multivibrators designed for 2-V to  
5.5-V V  
operation.  
CC  
These edge-triggered multivibrators feature  
output pulse-duration control by three methods. In  
the first method, the A input is low and the B input  
goes high. In the second method, the B input is  
high and the A input goes low. In the third method,  
the A input is low, the B input is high, and the clear  
(CLR) input goes high.  
NC – No internal connection  
The output pulse duration is programmable by selecting external resistance and capacitance values. The  
external timing capacitor must be connected between C and R /C (positive) and an external resistor  
ext  
ext ext  
connected between R /C  
and V . To obtain variable pulse durations, connect an external variable  
ext ext  
CC  
resistance between R /C and V . The output pulse duration can also be reduced by taking CLR low.  
ext ext  
CC  
Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input  
pulse. The A, B, and CLR inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition  
rates with jitter-free triggering at the outputs.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
EPIC is a trademark of Texas Instruments Incorporated.  
Copyright 1999, Texas Instruments Incorporated  
UNLESS OTHERWISE NOTED this document contains PRODUCTION  
DATA information current as of publication date. Products conform to  
specifications per the terms of Texas Instruments standard warranty.  
Production processing does not necessarily include testing of all  
parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...14

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