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MSP430G2955

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16 MHz MCU with 56KB Flash, 2KB SRAM, 10-bit ADC, comparator, UART/SPI/I2C, timer

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Data sheet
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Errata

MSP430G2955

ACTIVE
Data sheet Order now

Product details

Frequency (MHz) 16 Nonvolatile memory (kByte) 56 RAM (kByte) 4 ADC type 10-bit SAR Number of ADC channels 12 Number of GPIOs 32 Features Real-time clock, Spy-bi-wire, Watchdog timer UART 1 USB No Number of I2Cs 1 SPI 2 Number of comparator channels 8 Timers - 16-bit 3 Bootloader (BSL) UART Operating temperature range (°C) -40 to 85 Rating Catalog
Frequency (MHz) 16 Nonvolatile memory (kByte) 56 RAM (kByte) 4 ADC type 10-bit SAR Number of ADC channels 12 Number of GPIOs 32 Features Real-time clock, Spy-bi-wire, Watchdog timer UART 1 USB No Number of I2Cs 1 SPI 2 Number of comparator channels 8 Timers - 16-bit 3 Bootloader (BSL) UART Operating temperature range (°C) -40 to 85 Rating Catalog
TSSOP (DA) 38 101.25 mm² 12.5 x 8.1 VQFN (RHA) 40 36 mm² 6 x 6
  • Low Supply-Voltage Range: 1.8 V to 3.6 V
  • Ultra-Low Power Consumption
    • Active Mode: 250 µA at 1 MHz, 2.2 V
    • Standby Mode: 0.7 µA
    • Off Mode (RAM Retention): 0.1 µA
  • Five Power-Saving Modes
  • Ultra-Fast Wake-Up From Standby Mode in Less Than 1 µs
  • 16-Bit RISC Architecture, 62.5-ns Instruction Cycle Time
  • Basic Clock Module Configurations
    • Internal Frequencies up to 16 MHz With Four Calibrated Frequency
    • Internal Very-Low-Power Low-Frequency (LF) Oscillator
    • 32-kHz Crystal
    • High-Frequency (HF) Crystal up to 16 MHz
    • External Digital Clock Source
    • External Resistor
  • Two 16-Bit Timer_A With Three Capture/Compare Registers
  • One 16-Bit Timer_B With Three Capture/Compare Registers
  • Up to 32 Touch-Sense-Enabled I/O Pins
  • Universal Serial Communication Interface (USCI)
    • Enhanced UART Supporting Auto Baudrate Detection (LIN)
    • IrDA Encoder and Decoder
    • Synchronous SPI
    • I2C™
  • On-Chip Comparator for Analog Signal Compare Function or Slope Analog-to-Digital (A/D) Conversion
  • 10-Bit 200-ksps Analog-to-Digital (A/D) Converter With Internal Reference, Sample-and-Hold, and Autoscan
  • Brownout Detector
  • Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
  • Bootstrap Loader
  • On-Chip Emulation Logic
  • Package Options
    • TSSOP: 38 Pin (DA)
    • QFN: 40 Pin (RHA)
  • Low Supply-Voltage Range: 1.8 V to 3.6 V
  • Ultra-Low Power Consumption
    • Active Mode: 250 µA at 1 MHz, 2.2 V
    • Standby Mode: 0.7 µA
    • Off Mode (RAM Retention): 0.1 µA
  • Five Power-Saving Modes
  • Ultra-Fast Wake-Up From Standby Mode in Less Than 1 µs
  • 16-Bit RISC Architecture, 62.5-ns Instruction Cycle Time
  • Basic Clock Module Configurations
    • Internal Frequencies up to 16 MHz With Four Calibrated Frequency
    • Internal Very-Low-Power Low-Frequency (LF) Oscillator
    • 32-kHz Crystal
    • High-Frequency (HF) Crystal up to 16 MHz
    • External Digital Clock Source
    • External Resistor
  • Two 16-Bit Timer_A With Three Capture/Compare Registers
  • One 16-Bit Timer_B With Three Capture/Compare Registers
  • Up to 32 Touch-Sense-Enabled I/O Pins
  • Universal Serial Communication Interface (USCI)
    • Enhanced UART Supporting Auto Baudrate Detection (LIN)
    • IrDA Encoder and Decoder
    • Synchronous SPI
    • I2C™
  • On-Chip Comparator for Analog Signal Compare Function or Slope Analog-to-Digital (A/D) Conversion
  • 10-Bit 200-ksps Analog-to-Digital (A/D) Converter With Internal Reference, Sample-and-Hold, and Autoscan
  • Brownout Detector
  • Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
  • Bootstrap Loader
  • On-Chip Emulation Logic
  • Package Options
    • TSSOP: 38 Pin (DA)
    • QFN: 40 Pin (RHA)

The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 µs.

The MSP430G2x55 series are ultra-low-power mixed signal microcontrollers with built-in 16-bit timers, up to 32 I/O touch-sense-enabled pins, a versatile analog comparator, and built-in communication capability using the universal serial communication interface.

Typical applications include low-cost sensor systems that capture analog signals, convert them to digital values, and then process the data for display or for transmission to a host system.

The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 µs.

The MSP430G2x55 series are ultra-low-power mixed signal microcontrollers with built-in 16-bit timers, up to 32 I/O touch-sense-enabled pins, a versatile analog comparator, and built-in communication capability using the universal serial communication interface.

Typical applications include low-cost sensor systems that capture analog signals, convert them to digital values, and then process the data for display or for transmission to a host system.
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Technical documentation

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Type Title Date
* Data sheet MSP430G2x55 Mixed Signal Microcontroller datasheet 22 Mar 2013
* Errata MSP430G2955 Microcontroller Errata (Rev. K) PDF | HTML 28 Jun 2021
* User guide MSP430F2xx, MSP430G2xx Family User's Guide (Rev. K) PDF | HTML 25 Aug 2022
Application note Design Considerations When Using the MSP430 Graphics Library (Rev. A) PDF | HTML 09 Aug 2023
Application note ESD Diode Current Specification (Rev. B) PDF | HTML 23 Aug 2021
Application note Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. G) PDF | HTML 02 Aug 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) PDF | HTML 13 May 2021
Application note MSP430 System ESD Troubleshooting Guide PDF | HTML 13 Dec 2019
White paper Capacitive Touch and MSP Microcontrollers (Rev. A) 27 Apr 2017
Application note General Oversampling of MSP ADCs for Higher Resolution (Rev. A) PDF | HTML 01 Apr 2016
Functional safety information Safety Manual for MSP430G2xx, F5xx, and FR57xx in IEC 60730 Safety Applications (Rev. A) 12 Jan 2016
Application note MSP Code Protection Features PDF | HTML 07 Dec 2015
Application note 1-uA Capacitive Grip Detection Based on MSP430 Microcontrollers (Rev. B) 14 Aug 2013
Application note NFC/RFID Reader Ultra-Low-Power Card Presence Detect With MSP430 and TRF79xxA 18 Mar 2013
Application note Design Considerations When Using the MSP430 Graphics Library 05 Oct 2012
Application note Using the Real-Time-Clock Library (Rev. A) 11 Jan 2011

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