The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists 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 6 µs.
The MSP430FE42x2 devices are microcontroller configurations with two independent 16-bit sigma-delta analog-to-digital (A/D) converters and embedded signal processor core used to measure and calculate single-phase energy in both 2-wire and 3-wire configurations. Also included is a built-in 16-bit timer, 128 LCD segment drive capability, and 14 I/O pins.
Typical applications include 2-wire and 3-wire single-phase metering.
| Frequency (MHz) | 8 |
| Nonvolatile memory (kByte) | 12 |
| RAM (kByte) | 0.5 |
| ADC type | 16-bit Sigma Delta |
| Number of ADC channels | 2 |
| Number of GPIOs | 14 |
| Features | Advanced sensing, LCD |
| UART | 1 |
| USB | No |
| Number of I2Cs | 0 |
| SPI | 1 |
| Number of comparator channels | 0 |
| Timers - 16-bit | 1 |
| Bootloader (BSL) | UART |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| LQFP (PM) | 64 | 144 mm² 12 x 12 |
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