MSP430FR5721IDAR

The MSP430FR572x series ultra-low-power microcontrollers consist of multiple devices, featuring embedded FRAM non-volatile memory, an ultra-low-power 16-bit MSP430 CPU, and different peripherals dedicated to various applications. This architecture, combined with FRAM and peripherals, along with seven low-power modes, is optimized to extend battery life in portable wireless sensing applications. FRAM is a new type of non-volatile memory that perfectly combines the speed, flexibility, and durability of SRAM with the stability and reliability of flash memory, while consuming less total power. Peripherals include a 10-bit analog-to-digital converter (ADC), a 16-channel comparator with voltage reference generation and hysteresis functions, three enhanced serial channels supporting I2C, SPI, or UART protocols, an internal DMA, a hardware multiplier, a real-time clock (RTC), five 16-bit timers, and digital I/O.

Applications

• Home automation sensor management
• Security data acquisition

Key features

• Embedded Microcontroller
• 16-bit RISC architecture up to 8MHz clock frequency
• Wide supply voltage range (2V to 3.6V)
• -40℃ to 85℃ operation
• Optimized Ultra-Low-Power Modes
• Active mode: 81.4μA/MHz (typical)
• Standby (LPM3 with VLO): 6.3μA (typical)
• RTC (LPM3.5 with crystal): 1.5μA (typical)
• Shutdown (LPM4.5): 0.32μA (typical)
• Up to 16KB non-volatile memory
• Ultra-low-power write with 125ns per word fast write (16KB written within 1ms)
• Built-in ECC and MPU
• Unified memory = program + data + storage with 1015 write cycle endurance
• Radiation-tolerant and non-magnetic
• Intelligent Digital Peripherals
• 32-bit hardware multiplier (MPY)
• 3-channel internal DMA
• RTC with calendar and alarm functions
• Five 16-bit timers with up to 3 capture/compare registers
• 16-bit CRC
• High-Performance Analog
• 16-channel analog comparator with voltage reference and programmable hysteresis
• 12-channel 10-bit ADC with internal reference and sample-and-hold
• 200ksps at 100μA current consumption
• Enhanced Serial Communication
• eUSCI_A0 and eUSCI_A1 support:
• UART with automatic baud rate detection
• IrDA encoding and decoding
• SPI
• eUSCI_B0 support:
• I2C with multi-slave addressing
• SPI
• Hardware UART bootloader (BSL)
• Power Management System
• Fully integrated LDO
• Core and supply voltage supervisor with reset
• Zero-power brownout detection in always-on mode
• Serial in-system programming without external voltage
• Flexible Clock System
• Fixed-frequency DCO with 6 selectable factory-calibrated frequencies (device-dependent)
• Low-power low-frequency VLO
• 32kHz crystal oscillator (LFXT)
• High-frequency crystal oscillator (HFXT)
• Development Tools and Software
• Free professional development environment (Code Composer Studio IDE)
• Low-cost full-featured kit
• Complete development kit (MSP-FET430U40A)
• Target board (MSP-TS430RHA40A)