TI MSP430G2231IPW14R

The MSP430 series of ultra-low-power microcontrollers includes a variety of devices, each featuring a distinct set of peripherals tailored for diverse applications. This architecture, combined with five low-power modes, is optimized to extend battery life in portable measurement applications. The device is equipped with a powerful 16-bit RISC CPU, 16-bit registers, and a constant generator that enhances coding efficiency. The Digital Control Oscillator (DCO) can wake up from a low-power mode to an operating mode in less than 1µs.

The MSP430G2x21/G2x31 series of products is an ultra-low-power mixed-signal microcontroller. This microcontroller comes with a built-in 16-bit timer and ten I/O pins. The MSP430G2x31 series has a 10-bit Analog-to-Digital (A/D) converter and built-in communication capabilities using synchronous protocols (SPI or I2C).

Typical applications include low-cost sensor systems. These systems are responsible for capturing analog signals, converting them into digital values, and then processing the data for display or transmission to a host system.

• Supply voltage range: 1.8V to 3.6V
• Ultra-low power consumption
  • Active mode: 220μA (at 1MHz, 2.2V)
  • Standby mode: 0.5μA
  • Off mode (RAM retention): 0.1μA
  • 5 power-saving modes
  • Ultra-fast wakeup from standby in less than 1μs
• 16-bit RISC architecture, 62.5ns instruction cycle time
• Internal oscillator with one calibrated frequency, up to 16MHz
• Internal ultra-low-power LF oscillator
• 32kHz crystal oscillator
• External digital clock source
• 16-bit Timer_A with two capture/compare registers
• Universal serial interface supporting SPI and I2C
• Brownout detector
• 10-bit, 200ksps ADC with internal reference, sample-and-hold, and auto-scan
• Serial in-system programming, no external programming voltage required, programmable code protection via security fuse
• On-chip emulation logic with Spy-Bi-Wire interface

• Low-cost sensor systems