The Texas Instruments MSP430 family of ultra-low-power microcontrollers consist 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 MSP430x21x1 series is an ultra-low-power mixed signal microcontroller with a built-in 16-bit timer, versatile analog comparator, and sixteen I/O pins.
Typical applications include sensor systems that capture analog signals, convert themto digital values, and then process the data for display or for transmission to a host system. Stand-alone RF sensor front end is another area of application. The analog comparator provides slope A/D conversion capability.
| Frequency (MHz) | 16 |
| Nonvolatile memory (kByte) | 2 |
| RAM (kByte) | 0.125 |
| ADC type | Slope |
| Number of ADC channels | 0 |
| Number of GPIOs | 16 |
| Features | Brown out detector, Real-time clock |
| UART | 0 |
| USB | No |
| Number of I2Cs | 0 |
| SPI | 0 |
| Number of comparator channels | 6 |
| Timers - 16-bit | 1 |
| Bootloader (BSL) | UART |
| Operating temperature range (°C) | -40 to 105 |
| Rating | Catalog |
| SOIC (DW) | 20 | 131.84 mm² 12.8 x 10.3 |
| TSSOP (PW) | 20 | 41.6 mm² 6.5 x 6.4 |
| TVSOP (DGV) | 20 | 32 mm² 5 x 6.4 |
| VQFN (RGE) | 24 | 16 mm² 4 x 4 |