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TCA9548AEVM 产品设计参考手册 - TI（德州仪器）
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TI（德州仪器）
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PLC可编程逻辑控制器
描述:
交换机 IC 开发工具 Evaluation Module
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TCA9548AEVM数据手册
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User's Guide
SLVUA73–May 2014
TCA9548AEVM
This document is the user’s guide for the TCA9548AEVM. The TCA9548AEVM is designed to evaluate
and demonstrate the functionality of TI’s TCA954xA family of I
2
C switches. The TCA9548A comes
installed on the board and the 24-pin TSSOP footprint also supports TCA9543A, TCA9544A, TCA9545A,
and TCA9546A.
Contents
1 About this Manual............................................................................................................ 2
2 Information About Cautions and Warnings............................................................................... 2
3 Items Required for Operation .............................................................................................. 2
4 Introduction ................................................................................................................... 2
5 Setup .......................................................................................................................... 3
5.1 Header and Jumper Connections Description .................................................................. 3
6 Schematic ................................................................................................................... 10
6.1 Pin Map............................................................................................................. 11
7 Board Layout................................................................................................................ 11
8 Bill of Materials ............................................................................................................. 13
List of Figures
1 TCA9548AEVM .............................................................................................................. 3
2 J_1V8 Jumper Connecting LDO Output .................................................................................. 4
3 J8 Jumper SDA and SCL Pull Up Voltage Selection ................................................................... 4
4 J_Vcct1 and J_Vcct2 Jumper Connections .............................................................................. 5
5 A0 and A1 Slave Address Configuration ................................................................................. 5
6 Grounding Configurations for Other TCA954xA Devices .............................................................. 6
7 J7 and J11 Jumper Connections .......................................................................................... 6
8 Jumper Configuration for TCA9548A ..................................................................................... 7
9 Jumper Configuration for TCA9546A ..................................................................................... 7
10 Jumper Configuration for TCA9545A ..................................................................................... 8
11 Jumper Configuration for TCA9544A ..................................................................................... 8
12 Jumper Configuration for TCA9543A ..................................................................................... 9
13 TCA9548AEVM Schematic ............................................................................................... 10
14 PCB Layer 1 (Top Layer).................................................................................................. 11
15 PCB Layer 2 (Bottom Layer).............................................................................................. 12
List of Tables
1 Device and Package Configurations ...................................................................................... 2
2 TCA954xA Pin Map........................................................................................................ 11
3 Bill of Materials ............................................................................................................. 13
1
SLVUA73–May 2014 TCA9548AEVM
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