The Texas Instruments MSP430 family of ultra-low-power microcontrollers consist 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 MSP430G2x52 and MSP430G2x12 series of microcontrollers are ultra-low-power mixed signal microcontrollers with built-in 16-bit timers, and up to 16 I/O capacitive-touch enabled pins and built-in communication capability using the universal serial communication interface and have a versatile analog comparator. The MSP430G2x52 series have a 10-bit A/D converter. For configuration details see . 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.

• 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 Four
  Calibrated Frequencies
• Internal Very-Low-Power Low-Frequency (LF) Oscillator
• 32-kHz Crystal
• External Digital Clock Source
• One 16-Bit Timer_A With Three Capture/Compare Registers
• Up to 16 Capacitive-Touch Enabled I/O Pins
• Universal Serial Interface (USI) Supporting SPI and I2C
• 10-Bit 200-ksps Analog-to-Digital (A/D) Converter With Internal
  Reference, Sample-and-Hold, and Autoscan (MSP430G2x52 Only)
• On-Chip Comparator for Analog
• Brownout Detector
• Serial Onboard Programming, No External Programming Voltage
  Needed, Programmable Code Protection by Security Fuse
• On-Chip Emulation Logic With Spy-Bi-Wire Interface
• Package Options
• TSSOP: 14 Pin, 20 Pin
• PDIP: 20 Pin
• QFN: 16 Pin
• For Complete Module Descriptions, See the MSP430x2xx Family User’s Guide (SLAU144)