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SN74ABT843DWE4

更新时间： 2024-11-20 22:14:19
品牌 Logo 应用领域
德州仪器 - TI 锁存器输出元件
页数 文件大小 规格书
17页 401K
描述
9-BIT BUS-INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS

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中文翻译

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SN74ABT843DWE4 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP, SOP24,.4针数：24
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.31其他特性：WITH CLEAR AND PRESET
系列：ABTJESD-30 代码：R-PDSO-G24
JESD-609代码：e4长度：15.4 mm
负载电容（CL）：50 pF逻辑集成电路类型：BUS DRIVER
最大I（ol）：0.064 A湿度敏感等级：1
位数：9功能数量：1
端口数量：2端子数量：24
最高工作温度：85 °C最低工作温度：-40 °C
输出特性：3-STATE输出极性：TRUE
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP24,.4封装形状：RECTANGULAR
封装形式：SMALL OUTLINE包装方法：TUBE
峰值回流温度（摄氏度）：260电源：5 V
最大电源电流（ICC）：34 mAProp。Delay @ Nom-Sup：7.2 ns
传播延迟（tpd）：6.9 ns认证状态：Not Qualified
座面最大高度：2.65 mm子类别：FF/Latches
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：4.5 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：BICMOS温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.5 mm
Base Number Matches：1

SN74ABT843DWE4 数据手册

 浏览型号SN74ABT843DWE4的Datasheet PDF文件第2页浏览型号SN74ABT843DWE4的Datasheet PDF文件第3页浏览型号SN74ABT843DWE4的Datasheet PDF文件第4页浏览型号SN74ABT843DWE4的Datasheet PDF文件第5页浏览型号SN74ABT843DWE4的Datasheet PDF文件第6页浏览型号SN74ABT843DWE4的Datasheet PDF文件第7页 
SN54ABT843, SN74ABT843  
9-BIT BUS-INTERFACE D-TYPE LATCHES  
WITH 3-STATE OUTPUTS  
SCBS197D – FEBRUARY 1991 – REVISED MAY 1997  
SN54ABT843 . . . JT OR W PACKAGE  
SN74ABT843 . . . DB, DW, OR NT PACKAGE  
(TOP VIEW)  
State-of-the-Art EPIC-ΙΙB BiCMOS Design  
Significantly Reduces Power Dissipation  
Latch-Up Performance Exceeds 500 mA Per  
JEDEC Standard JESD-17  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
OE  
1D  
V
CC  
Typical V  
(Output Ground Bounce) < 1 V  
2
1Q  
2Q  
3Q  
4Q  
5Q  
6Q  
7Q  
8Q  
9Q  
PRE  
LE  
OLP  
at V  
= 5 V, T = 25°C  
3
2D  
3D  
4D  
5D  
CC  
A
4
High-Drive Outputs (–32-mA I , 64-mA I  
OH  
)
OL  
5
Package Options Include Plastic  
Small-Outline (DW) and Shrink  
Small-Outline (DB) Packages, Ceramic Chip  
Carriers (FK), Ceramic Flat (W) Package,  
and Plastic (NT) and Ceramic (JT) DIPs  
6
7
6D  
7D  
8D  
9D  
8
9
10  
11  
12  
CLR  
GND  
description  
The ’ABT843 9-bit latches are designed  
specifically for driving highly capacitive or  
relatively low-impedance loads. They are  
particularly suitable for implementing buffer  
registers, I/O ports, bidirectional bus drivers, and  
working registers.  
SN54ABT843 . . . FK PACKAGE  
(TOP VIEW)  
4
3
2
1
28 27 26  
25 3Q  
The nine transparent D-type latches provide true  
data at the outputs.  
3D  
4D  
5D  
NC  
6D  
7D  
8D  
5
4Q  
5Q  
NC  
6Q  
7Q  
8Q  
6
24  
23  
22  
21  
20  
19  
7
A buffered output-enable (OE) input can be used  
to place the nine outputs in either a normal logic  
8
state (high or low logic levels) or  
a
9
high-impedance state. The outputs are also in the  
high-impedance state during power-up and  
power-downconditions. Theoutputsremaininthe  
high-impedance state while the device is powered  
down. In the high-impedance state, the outputs  
neither load nor drive the bus lines significantly.  
The high-impedance state and increased drive  
provide the capability to drive bus lines without  
need for interface or pullup components.  
10  
11  
12 13 14 15 16 17 18  
NC – No internal connection  
OE does not affect the internal operations of the latch. Previously stored data can be retained or new data can  
be entered while the outputs are in the high-impedance state.  
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup  
CC  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
The SN54ABT843 is characterized for operation over the full military temperature range of –55°C to 125°C. The  
SN74ABT843 is characterized for operation from –40°C to 85°C.  
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-ΙΙB is a trademark of Texas Instruments Incorporated.  
Copyright 1997, Texas Instruments Incorporated  
PRODUCTION DATA information is 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...17

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