Texas Instruments Introduces MSP430F521x/F522x Microcontrollers

Texas Instruments introduced their new MSP430F521x/F522x microcontroller family. The new TI MCUs support a main supply rail (1.8V – 3.6V) and I/O supply rail (1.8V +/-10%). This eliminates the need for level translators and offers system-level advantages such as reduced system cost and increased flexibility. Samples of the MSP430F521x/F522x microcontrollers are available now. They’re priced from $2.05 for 1K units.

The F521x/F522x microcontrollers can operate as an ultra-low-power co-processor to higher power/performance devices such as TI’s OMAP processor and Sitara platforms. The MCUs can be used to offload functions such as sensor hub, keyboard control, battery/power management, capacitive touch, haptics and proximity detection with lower power consumption compared to running these within an application processor. With a fast wake-up time at 3.5us and as little as 1.4uA power consumption in standby mode, the F521x/F522x microcontrollers can extend battery life from hours to days.

TI MSP430F521x/F522x Microcontrollers Features

  • Dual-supply voltage device
  • Primary supply (AVCC, DVCC): 3.6 V Down to 1.8 V, up to 22 general-purpose I/O with up to 4 external interrupts
  • Low-voltage interface supply (DVIO): 1.62 V to 1.98 V, up to 31 general-purpose I/O with up to 12 external interrupts
  • Serial communications
  • Ultra-pow power consumption
  • Wake-up from standby mode in 3.5 µs (typical)
  • 16-Bit RISC architecture, extended memory, up to 25-MHz system clock
  • Fully integrated LDO with programmable regulated core supply voltage
  • Supply voltage supervision, monitoring, and brownout
  • FLL control loop for frequency stabilization
  • Low-power low-frequency internal clock source (VLO)
  • Low frequency trimmed internal reference source (REFO)
  • 32-kHz watch crystals (XT1)
  • High-frequency crystals up to 32 MHz (XT2)
  • 16-Bit timer TA0, Timer_A with 5 capture/compare registers
  • 16-Bit timer TA1, Timer_A with 3 capture/compare registers
  • 16-Bit timer TA2, Timer_A with 3 capture/compare registers
  • 16-Bit timer TB0, Timer_B with 7 capture/compare registers
  • Two universal serial communication interfaces
  • USCI_A0 and USCI_A1 each spport enhanced UART with auto-baudrate detection, IrDA encoder and decoder, synchronous SPI
  • USCI_B0 and USCI_B1 each Support I2C, synchronous SPI
  • 10-Bit analog-to-digital (A/D) converter with internal reference, sample-and-hold
  • Comparator
  • Hardware multiplier supports 32-bit operations
  • Serial onboard programming, no external programming voltage needed
  • Three channel internal DMA
  • Basic timer with real-time clock feature

More info: Texas Instruments MSP430F522x and MSP430F521x Mixed Signal Microcontroller (pdf)