SMBus Design Using Low Power Microcontroller


Design files


This design utilizes existing Launchpad evaluation kits and BoosterPack plug-in modules to demonstrate the implementation of a SMBus-based system using Texas Instrument’s MSP430 SMBus Library.


• Low-power
• Cost-effective
• Shows implementation of smbuslib as Master and Slave
• Uses TMP006 to measure temperature of objects remotely
• Simple LED dimmer implementation using MSP430 as SMBus slave
• Easy-to-use GUI

??image.gallery.download_en_US?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU741.PDF (2381 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRDF7.ZIP (3282 K)

Files used for 3D models or 2D drawings of IC components

TIDC971.ZIP (883 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR596916 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430G255316 MHz MCU with 16KB Flash, 512B SRAM, comparator, UART/SPI/I2C, timer

Data sheet: PDF
Analog switches & muxes

TS5A213660.75-Ω on-state resistance, 5-V, 1:1 (SPST), two-channel analog switch with 1.8-V input logic

Data sheet: PDF | HTML
Digital temperature sensors

TMP006Infrared Thermopile Contactless Temperature Sensor in WCSP Package

Data sheet: PDF | HTML
ESD protection diodes

TPD2E001Dual 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

Data sheet: PDF | HTML
ESD protection diodes

TPD4E004Quad 1.6-pF, 5.5-V, ±8-kV ESD protection diode with VCC pin for High Speed Interfaces

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS773250-mA, 10-V, low-dropout voltage regulator with RESET with delay

Data sheet: PDF

Start development


Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Design guide SMBus Design Using MSP430 Design Guide Mar. 05, 2015

Related design resources

Hardware development

MSP-EXP430FR5969 MSP430FR5969 LaunchPad™ development kit

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​