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 MSP430F20xx series is an ultra-low-power mixed signal microcontroller with a built-in 16-bit timer and ten I/O pins. In addition, the MSP430F20x1 has a versatile analog comparator. The MSP430F20x2 and MSP430F20x3 have built-in communication capability using synchronous protocols (SPI or I2C) and a 10-bit A/D converter (MSP430F20x2) or a 16-bit sigma-delta A/D converter (MSP430F20x3).

Typical applications include 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. Stand alone RF sensor front end is another area of application.

• 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 to ±1%
  • Internal Very Low-Power Low-Frequency Oscillator
  • 32-kHz Crystal
  • External Digital Clock Source
• 16-Bit Timer_A With Two Capture/Compare Registers
• On-Chip Comparator for Analog Signal Compare Function or Slope A/D (MSP430F20x1)
• 10-Bit 200-ksps A/D Converter With Internal Reference, Sample-and-Hold, and Autoscan (MSP430F20x2)
• 16-Bit Sigma-Delta A/D Converter With Differential PGA Inputs and Internal Reference (MSP430F20x3)
• Universal Serial Interface (USI) Supporting SPI and I2C (MSP430F20x2 and MSP430F20x3)
• 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
• Family Members:
  • MSP430F2001: 1KB + 256B Flash Memory, 128B RAM
  • MSP430F2011: 2KB + 256B Flash Memory, 128B RAM
  • MSP430F2002: 1KB + 256B Flash Memory, 128B RAM
  • MSP430F2012: 2KB + 256B Flash Memory, 128B RAM
  • MSP430F2003: 1KB + 256B Flash Memory, 128B RAM
  • MSP430F2013: 2KB + 256B Flash Memory, 128B RAM
• Available in 14-Pin Plastic Small-Outline Thin Package (TSSOP), 14-Pin Plastic Dual Inline Package (PDIP), and 16-Pin QFN
• For Complete Module Descriptions, See the MSP430x2xx Family User's Guide (SLAU144)