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 MSP430F21x2 series is an ultra-low-power microcontroller with two built-in 16-bit timers, a fast 10-bit A/D converter with integrated reference and a data transfer controller (DTC), a comparator, built-in communication capability using the universal serial communication interface, and up to 24 I/O pins.

• 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
• 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 to ±1%
  • Internal Very-Low-Power Low-Frequency Oscillator
  • 32-kHz Crystal
  • High-Frequency (HF) Crystal up to 16 MHz
  • Resonator
  • External Digital Clock Source
  • External Resistor
• 16-Bit Timer0_A3 With Three Capture/Compare Registers
• 16-Bit Timer1_A2 With Two Capture/Compare Registers
• On-Chip Comparator for Analog Signal Compare Function or Slope Analog-to-Digital (A/D) Conversion
• 10-Bit 200-ksps A/D Converter With Internal Reference, Sample-and-Hold, Autoscan, and Data Transfer Controller
• Universal Serial Communication Interface
  • Enhanced UART Supporting Auto-Baudrate Detection (LIN)
  • IrDA Encoder and Decoder
  • Synchronous SPI
  • I2C™
• Brownout Detector
• Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
• Bootstrap Loader
• On-Chip Emulation Module
• Family Members Include:
  • MSP430F2132: 8KB + 256B Flash Memory, 512B RAM
  • MSP430F2122: 4KB + 256B Flash Memory, 512B RAM
  • MSP430F2112: 2KB + 256B Flash Memory, 256B RAM
• Available in 28-Pin TSSOP (PW) and 32-Pin QFN (RHB or RTV) Packages
• For Complete Module Descriptions, See the MSP430x2xx Family User's Guide, Literature Number SLAU144