Texas Instruments' MSP430F249 microcontroller has two built-in 16-bit timers, a fast 12-bit analog-to-digital converter (except the MSP430F24x1), a comparator, four universal serial communication interface (USCI) modules (two in the MSP430F23x) and as many as 48 I/O pins. The device features a powerful 16-bit RISC CPU, 16-bit registers and constant generators that contribute to maximum code efficiency. The calibrated digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 µs.
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- Low supply-voltage range, 1.8 V to 3.6 V
- Active mode: 270 µA at 1 MHz, 2.2 V
- Standby mode (VLO): 0.3 µA
- Off mode (RAM retention): 0.1 µA
- Ultra-low power consumption
- Ultra-fast wake-up from standby mode in less than 1 µs
- 16-bit RISC architecture, 62.5 ns instruction cycle time
- On-chip comparator
- Supply voltage supervisor/monitor with programmable level detection
- 12-bit analog-to-digital (A/D) converter with internal reference, sample-and-hold, and autoscan feature
- Brownout detector
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- Basic clock module configurations:
- Internal frequencies up to 16 MHz
- Internal very low power LF oscillator
- 32 kHz crystal (−40°C to 105°C only)
- Internal frequencies up to 16 MHz with four calibrated frequencies to ±1%
- Resonator
- External digital clock source
- External resistor
- 16-bit Timer_A with three capture/compare registers
- 16-bit Timer_B with seven capture/compare-with-shadow registers
- Bootstrap loader
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