Texas Instruments MSP430F249 16-bit Ultra-Low Power Microcontrollers feature 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. The Texas Instruments MSP430 family of ultra-low power MCUs consists of several devices featuring different sets of peripherals targeted for various applications. The architecture is optimized to achieve extended battery life in portable measurement applications by combining five low-power modes. TI MSP430F249 MCUs feature a powerful 16-bit RISC CPU, 16-bit registers, and constant generators contributing to maximum code efficiency. The calibrated digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1µs.
Features
Low supply voltage range of 1.8V to 3.6V
Ultra-low power consumption
Active mode: 270µA at 1MHz, 2.2V
Standby mode (VLO): 0.3µA
Off mode (RAM retention): 0.1µA
Ultra-fast wake-up from standby mode in less than 1µs
16-bit RISC architecture, 62.5ns instruction cycle time
Basic clock module configurations
Internal frequencies up to 16MHz
Internal very low-power LF oscillator
32kHz crystal
Internal frequencies up to 16MHz 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 auto-scan 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)
