MSP430F5255IZQER

16位微控制器 - MCU Ultra-Low Power 1.8V Split-Rail I/O

Using an "always-on" ultra-low-power system controller can significantly reduce power consumption on portable devices like handsets and tablets. These controllers can act as sensor hubs and monitor user stimuli for example, reading inertial sensors or touch sensors and vital system parameters like battery health and temperature, while power-hungry application processors and touch screen controllers are turned off. The microcontroller can then "wake up" the system based on a user input or on a fault condition that requires CPU intervention.

The MSP430F525x series is the latest addition to the 1.8-V split-rail I/O portfolio previously only available on MSP430F522x and is specifically designed for "always-on" system controller applications. 1.8-V I/O allows for seamless interface to application processors and other devices without the need for external level translation, while the primary supply to the MCU can be on a higher voltage rail.

Compared to the MSP430F522x, the MSP430F525x provides up to four times more RAM 32KB and double the serial interfaces four USCI_A and four USCI_B. The MSP430F525x also features four 16-bit timers, a high-performance 10-bit analog-to-digital converter ADC, a hardware multiplier, DMA, a comparator, and a real-time clock RTC module with alarm capabilities. The MSP430F525x consumes 290 µA/MHz typical in active mode running from flash memory, and it consumes 1.6 µA typical in standby mode LPM3. The MSP430F525x can switch to active mode in 3.5 µs typical, which makes it a great fit for "always-on" low-power applications.

Key benefits of the MSP430F525x are as follows:

Typical applications include analog and digital sensor fusion systems, data loggers, and various general-purpose applications.