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
