The Texas Instruments MSP430 family of ultralow-power microcontrollers consists of several devices featuring

　　different sets of peripherals targeted for various applications. The architecture， combined with extensive

　　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 3.5 μs （typical）。

　　The MSP430F5529， MSP430F5527， MSP430F5525， and MSP430F5521 are microcontroller configurations with

　　integrated USB and PHY supporting USB 2.0， four 16-bit timers， a high-performance 12-bit analog-to-digital

　　converter （ADC）， two universal serial communication interfaces （USCI）， hardware multiplier， DMA， real-time clock

　　module with alarm capabilities， and 63 I/O pins. The MSP430F5528， MSP430F5526， MSP430F5524， and

　　MSP430F5522 include all of these peripherals but have 47 I/O pins.

　　The MSP430F5519， MSP430F5517， and MSP430F5515 are microcontroller configurations with integrated USB

　　and PHY supporting USB 2.0， four 16-bit timers， two universal serial communication interfaces （USCI）， hardware

　　multiplier， DMA， real time clock module with alarm capabilities， and 63 I/O pins. The MSP430F5514 and

　　MSP430FF5513 include all of these peripherals but have 47 I/O pins.