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.
Part number | Order | Features | Non-volatile memory (kB) | RAM (KB) | ADC | ADC: channels (#) | GPIO pins (#) | I2C | SPI | UART | Comparator channels (#) | Package Group | Approx. price (US$) | USB | Timers - 16-bit | Bootloader (BSL) | Special I/O | Operating temperature range (C) | Package size: mm2:W x L (PKG) | Rating |
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MSP430FE4252 |
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LCD | 16 | 0.5 | 16-bit Sigma Delta | 2 | 14 | 0 | 1 | 1 | 0 | LQFP | 64 | 2.42 | 1ku | No | 1 | UART | -40 to 85 | 64LQFP: 144 mm2: 12 x 12 (LQFP | 64) | Catalog | |
MSP430FE4232 |
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LCD | 8 | 0.25 | 16-bit Sigma Delta | 2 | 14 | 0 | 1 | 1 | 0 | LQFP | 64 | 2.15 | 1ku | No | 1 | UART | -40 to 85 | 64LQFP: 144 mm2: 12 x 12 (LQFP | 64) | Catalog | |
MSP430FE4242 | Samples not available | LCD | 12 | 0.5 | 16-bit Sigma Delta | 2 | 14 | 0 | 1 | 1 | 0 | LQFP | 64 | 2.25 | 1ku | No | 1 | UART | -40 to 85 | 64LQFP: 144 mm2: 12 x 12 (LQFP | 64) | Catalog | |
MSP430FE4272 |
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LCD | 32 | 1 | 16-bit Sigma Delta | 2 | 14 | 0 | 1 | 1 | 0 | LQFP | 64 | 2.51 | 1ku | No | 1 | UART | -40 to 85 | 64LQFP: 144 mm2: 12 x 12 (LQFP | 64) | Catalog |