MSP430G2231

(ACTIVE) MSP430G2x21, MSP430G2x31 Mixed Signal Microcontroller

Diagrams

Functional Diagram

Description

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 MSP430G2x21/G2x31 series is an ultra-low-power mixed signal microcontroller with a built-in 16-bit timer and ten I/O pins. The MSP430G2x31 family members have a 10-bit A/D converter and built-in communication capability using synchronous protocols (SPI or I2C).

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.

Features

  • Low Supply-Voltage Range: 1.8 V to 3.6 V
  • Ultra-Low Power Consumption
    • Active Mode: 220 µA at 1 MHz, 2.2 V
    • Standby Mode: 0.5 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 One Calibrated Frequency
    • Internal Very Low Power Low-Frequency (LF) Oscillator
    • 32-kHz Crystal
    • External Digital Clock Source
  • 16-Bit Timer_A With Two Capture/Compare Registers
  • Universal Serial Interface (USI) Supporting SPI and I2C
  • Brownout Detector
  • 10-Bit 200-ksps A/D Converter With Internal Reference, Sample-and-Hold, and Autoscan (See )
  • Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
  • On-Chip Emulation Logic With Spy-Bi-Wire Interface
  • Available in 14-Pin Plastic Small-Outline Thin Package (TSSOP) (PW), 14-Pin Plastic Dual Inline Package (PDIP) (N), and 16-Pin QFN Package (RSA)

Parametrics

Non-volatile Memory (KB) 2    
RAM (KB) 0.125    
ADC 10-bit SAR    
ADC: Channels (#) 8    
GPIO Pins (#) 10    
I2C 1    
SPI 1    
UART 0    
Comparator Channels (#) 0    
Package Group PDIP^QFN^TSSOP    
Approx. Price (US$) 0.55 | 1ku    
USB No    
Timers - 16-bit 1    

Companion Products

Technical Documents

Datasheet (1)

Errata (1)

Application notes (21)

User guides (2)

Selection guides (2)

White papers (2)

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