Description
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 MSP430F22x4/MSP430F22x2 series is an ultra-low-power mixed signal microcontroller with two built-in 16-bit timers, a universal serial communication interface, 10-bit A/D converter with integrated reference and data transfer controller (DTC), two general-purpose operational amplifiers in the MSP430F22x4 devices, and 32 I/O pins. Typical applications include sensor systems that capture analog signals, convert them to digital values, and then process the data for display or for transmission to a host system. Stand-alone radio-frequency (RF) sensor front ends are another area of application.
- Active Mode: 270 µA at 1 MHz, 2.2 V
- Standby Mode: 0.7 µA
- Off Mode (RAM Retention): 0.1 µA
- Internal Frequencies up to 16 MHz With Four Calibrated Frequencies to ±1%
- Internal Very-Low-Power Low-Frequency Oscillator
- 32-kHz Crystal
- High-Frequency (HF) Crystal up to 16 MHz
- Resonator
- External Digital Clock Source
- External Resistor
- Enhanced UART Supporting Auto-Baudrate Detection (LIN)
- IrDA Encoder and Decoder
- Synchronous SPI
- I2C™
- MSP430F2232: 8KB + 256B Flash Memory, 512B RAM
- MSP430F2252: 16KB + 256B Flash Memory, 512B RAM
- MSP430F2272: 32KB + 256B Flash Memory, 1KB RAM
- MSP430F2234: 8KB + 256B Flash Memory, 512B RAM
- MSP430F2254: 16KB + 256B Flash Memory, 512B RAM
- MSP430F2274: 32KB + 256B Flash Memory, 1KB RAM