SLAA148A
October 2002 – October 2018
Interfacing the 3-V MSP430™ MCUs to 5-V Circuits
Trademarks
1
Introduction
2
Definitions
2.1
Specification Values of MSP430 MCU
2.2
External System Definitions
3
Input Interfaces
3.1
Resistor-Divider Input Interfaces
3.2
Transistor Input Interface
3.3
Op-Amp Input Interface
3.4
TPL7407LA Input Interface
3.5
Integrated-Circuit Input Interface
3.6
Analog Input Interface
4
Output Interfaces
4.1
Transistor Output Interface
4.2
Interface to CMOS-TTL Inputs
4.3
Interface to TPL7407LA Inputs
4.4
Op-Amp Output Interface
4.5
Integrated-Circuit Output Interface
5
Bidirectional Interfaces
5.1
Simple Bidirectional Op-Amp Interface
5.2
Integrated-Circuit I/O Interface
6
Power Supplies
7
Summary
8
References
Revision History
5
Bidirectional Interfaces