Texas Instruments' MSP430G2231 is an ultra-low-power microcontroller featuring different sets of peripherals targeted for various applications. The architecture combines with five low-power modes, and 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.

• 16-bit timer_A with two capture/compare registers
• Universal serial interface (USI) supporting SPI and I²C
• Brownout detector
• 10-Bit 200 ksps A/D converter with internal reference, sample-and-hold, and autoscan
• Serial onboard programming, no external programming voltage needed, and programmable code protection by security fuse

• Controlled baseline
• One assembly/test site
• One fabrication site
• Extended product life cycle