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Texas Instruments MSP 430 series ultra-low power microcontrollers consist of multiple devices with different peripherals for different applications. The architecture, combined with five low-power modes, is optimized for extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers and constant generators, which help maximize code efficiency. A digitally controlled oscillator (DCO) allows wake-up from low power mode to active mode in less than 1s.

The MSP430F21x2 series are ultra-low-power microcontrollers with two built-in 16-bit timers, a fast 10-bit A/D converter with an integrated reference, and a Data Transfer Controller (DTC), which is a comparator using The built-in communication capabilities of 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 Active Mode: 250 A at 1 MHz, 2.2 V Standby Mode: 0.7 A Shutdown Mode (RAM Retention): 0.1 A Ultra-High Speed Wake-Up from Standby Mode in Less than 1 s 16-bit RISC architecture, 62.5 ns instruction cycle time Basic clock module configuration Internal frequency up to 16 MHz, four calibrated frequencies to within ±1% Very low power low frequency oscillator 32 kHz crystal High frequency (HF) crystal up to 16 MHz resonant cavity External digital clock source External resistor 16-bit Timer 0_A3 has three capture/compare registers 16-bit Timer 1_A2 has two capture/compare registers On-chip comparator for analog signal compare function or slope analog-to-digital conversion (A/D)

10-bit 200 KSPS A/D Converter with Internal Reference, Sample and Hold, AutoSCAN and Data Transfer Controller Universal Serial Communication Interface Enhanced UART Support Auto-Baud Rate Detection (LIN) IRDA Encoder and Decoder Synchronous SPI I2C? Brownout detector serial on-machine programming, no need for external programming voltage, programmable code protection for chip emulation module by safety fuse bootloader, members include: MSP430F2132: 8KB+25KB Flash, 512 BRAM MSP430F2122: 4KB+256B Flash 512 B RAM MSP430F2112: 2kb + 256 b Flash, 256 b RAM available in 28-Pin TSSOP (PW) and 32-Pin QFN (RHB or RTV) packages for full module description, see MSP430x2xx Home User Guide, literature number SLAU 144