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 calibrated digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 µs.

The MSP430F249 series are microcontroller configurations with two built-in 16-bit timers, a fast 12-bit A/D converter, a comparator, four universal serial communication interface (USCI) modules, and up to 48 I/O pins.

Typical applications include sensor systems, industrial control applications, hand-held meters, etc.

• Low Supply-Voltage Range, 1.8 V to 3.6 V
• Ultra-Low Power Consumption:
  • Active Mode: 270 µA at 1 MHz, 2.2 V
  • Standby Mode (VLO): 0.3 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
  • Internal Very Low Power LF Oscillator
  • 32-kHz Crystal (–40°C to 105°C only)
  • Internal Frequencies up to 16 MHz With Four Calibrated Frequencies to ±1%
  • Resonator
  • External Digital Clock Source
  • External Resistor
• 12-Bit Analog-to-Digital (A/D) Converter With Internal Reference, Sample-and-Hold, and Autoscan Feature
• 16-Bit Timer_A With Three Capture/Compare Registers
• 16-Bit Timer_B With Seven Capture/Compare-With-Shadow Registers
• Four Universal Serial Communication Interfaces (USCI)
  • USCI_A0 and USCI_A1Enhanced UART Supporting Auto-Baudrate DetectionIrDA Encoder and Decoder Synchronous SPI
  • USCI_B0 and USCI_B1 I2CSynchronous SPI
• On-Chip Comparator
• Supply Voltage Supervisor/Monitor With Programmable Level Detection
• Brownout Detector
• Bootstrap Loader
• Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
• Family Members Include:
  • MSP430F249 60KB+256B Flash Memory, 2KB RAM
• Available in 64-Pin QFP Package (See Available Options)
• For Complete Module Descriptions, See MSP430x2xx Family User’s Guide, Literature Number SLAU144(1)

(1) The MSP430F24x1 devices are identical to the MSP430F24x devices, with the exception that the ADC12 module is not implemented. I2C is a registered trademark of NXP Semiconductors.