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SN74ALS645A-1FN

更新时间： 2024-11-25 13:13:47
品牌 Logo 应用领域
德州仪器 - TI 总线驱动器总线收发器触发器逻辑集成电路光电二极管输出元件
页数 文件大小 规格书
9页 137K
描述
IC,BUS TRANSCEIVER,SINGLE,8-BIT,ALS-TTL,LDCC,20PIN,PLASTIC

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中文翻译

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SN74ALS645A-1FN 技术参数

是否Rohs认证：不符合生命周期：Obsolete
Reach Compliance Code：not_compliantHTS代码：8542.39.00.01
风险等级：5.92Is Samacsys：N
控制类型：COMMON CONTROL计数方向：BIDIRECTIONAL
JESD-30 代码：S-PQCC-J20最大I（ol）：0.048 A
位数：8功能数量：1
端子数量：20最高工作温度：70 °C
最低工作温度：输出特性：3-STATE
输出极性：TRUE封装主体材料：PLASTIC/EPOXY
封装代码：QCCJ封装等效代码：LDCC20,.4SQ
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5 V
Prop。Delay @ Nom-Sup：20 ns认证状态：Not Qualified
子类别：Bus Driver/Transceivers标称供电电压 (Vsup)：5 V
表面贴装：YES技术：TTL
温度等级：COMMERCIAL端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED翻译：N/A
Base Number Matches：1

SN74ALS645A-1FN 数据手册

 浏览型号SN74ALS645A-1FN的Datasheet PDF文件第2页浏览型号SN74ALS645A-1FN的Datasheet PDF文件第3页浏览型号SN74ALS645A-1FN的Datasheet PDF文件第4页浏览型号SN74ALS645A-1FN的Datasheet PDF文件第5页浏览型号SN74ALS645A-1FN的Datasheet PDF文件第6页浏览型号SN74ALS645A-1FN的Datasheet PDF文件第7页 
SN54ALS645A, SN54AS645, SN74ALS645A, SN74AS645  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SDAS278 – JANUARY 1995  
SN54ALS645A, SN54AS645 . . . J PACKAGE  
SN74ALS645A, SN74AS645 . . . DW OR N PACKAGE  
(TOP VIEW)  
• Bidirectional Bus Transceivers in  
High-Density 20-Pin Packages  
• True Logic  
• 3-State Outputs  
DIR  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
V
CC  
1
2
3
4
5
6
7
8
9
20  
19  
18  
17  
16  
15  
14  
OE  
B1  
B2  
B3  
B4  
B5  
• Package Options Include Plastic  
Small-Outline (DW) Packages, Ceramic  
Chip Carriers (FK), and Standard Plastic (N)  
and Ceramic (J) 300-mil DIPs  
description  
13 B6  
12 B7  
11 B8  
These octal bus transceivers are designed for  
asynchronous two-way communication between  
data buses. These devices transmit data from the  
A bus to the B bus or from the B bus to the A bus,  
depending on the level at the direction-control  
(DIR) input. The output-enable (OE) input can be  
used to disable the device so that the buses are  
effectively isolated.  
GND 10  
SN54ALS645A, SN54AS645 . . . FK PACKAGE  
(TOP VIEW)  
The -1 version of the SN74ALS645A is identical  
to the standard version, except that the  
3
2
1
20 19  
18  
B1  
B2  
B3  
B4  
B5  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
17  
16  
15  
14  
recommended maximum I  
is increased to  
OL  
48 mA. There is no -1 version of the  
SN54ALS645A.  
The SN54ALS645A and SN54AS645 are  
characterized for operation over the full military  
temperature range of –55°C to 125°C. The  
9 10 11 12 13  
SN74ALS645A  
and  
SN74AS645  
are  
characterized for operation from 0°C to 70°C.  
FUNCTION TABLE  
INPUTS  
OPERATION  
OE  
L
DIR  
L
B data to A bus  
A data to B bus  
Isolation  
L
H
H
X
Copyright 1995, 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...9

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