The TI MSP 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 the device to wake up from low-power modes to active mode in less than 1 µs.
The MSP430AFE2x3 devices are ultra-low-power mixed signal microcontrollers integrating three independent 24-bit sigma-delta ADCs, one 16-bit timer, one 16-bit hardware multiplier, USART communication interface, watchdog timer, and 11 I/O pins.
The MSP430AFE2x2 devices are identical to the MSP430AFE2x3, except that there are only two 24-bit sigma-delta ADCs integrated.
The MSP430AFE2x1 devices are identical to the MSP430AFE2x3, except that there is only one 24-bit sigma-delta ADC integrated.
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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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MSP430AFE251 |
|
16 | 0.5 | 24-bit Sigma Delta | 1 | 11 | 0 | 1 | 1 | 0 | TSSOP | 24 | 1.90 | 1ku | No | 1 | None | -40 to 85 | 24TSSOP: 34 mm2: 4.4 x 7.8 (TSSOP | 24) | Catalog | ||
MSP430AFE221 |
|
4 | 0.25 | 16-bit Sigma Delta | 1 | 11 | 0 | 1 | 1 | 0 | TSSOP | 24 | 1.80 | 1ku | No | 1 | UART | -40 to 85 | 24TSSOP: 34 mm2: 4.4 x 7.8 (TSSOP | 24) | Catalog | ||
MSP430AFE222 |
|
4 | 0.25 | 24-bit Sigma Delta | 2 | 11 | 0 | 1 | 1 | 0 | TSSOP | 24 | 1.95 | 1ku | No | 1 | UART | -40 to 85 | 24TSSOP: 34 mm2: 4.4 x 7.8 (TSSOP | 24) | Catalog | ||
MSP430AFE223 |
|
4 | 0.25 | 24-bit Sigma Delta | 3 | 11 | 0 | 1 | 1 | 0 | TSSOP | 24 | 2.10 | 1ku | No | 1 | UART | -40 to 85 |