Texas Instruments MSPM0H321x Mixed-Signal Microcontroller
Texas Instruments MSPM0H321x Mixed-Signal Microcontrollers (MCUs) are based on the enhanced Arm® Cortex®-M0+ core platform operating at a frequency of up to 32MHz. These cost-optimized modules operate with supply voltages from 4.5V, support an extended temperature range of -40°C to +125°C, and feature high-performance analog peripheral integration. The series provides up to 64KB embedded flash program memory with 8KB SRAM and includes a high-speed on-chip oscillator with up to ±1.2% accuracy, eliminating the need for an external crystal. The MCU's architecture and low-power modes are optimized to achieve extended battery life in portable measurement applications. Typical applications for TI MSPM0H321x MCUs include medical and healthcare, personal electronics, connected peripherals and printers, appliances, factory automation control, and lighting.
Features
- Arm 32-bit Cortex-M0+ CPU, frequency up to 32MHz
- Operating characteristics
- -40°C to +125°C extended temperature range
- 4.5V to 5.5V supply voltage range
- Memories
- Up to 64KB of flash
- 8KB of SRAM
- High-performance analog peripherals
- Analog-to-digital converter (ADC) with up to 27 total external channels, 1.6Msps at 12-bit
- 4.05V internal ADC voltage reference (VREF)
- Integrated temperature sensor
- Integrated supply monitor
- Optimized low-power modes
- Run: 125µA/MHz (CoreMark)
- Sleep: 2418uA at 32MHz
- Stop: 1429µA at 4MHz and 642uA at 32kHz
- Standby: 3.6µA with SRAM retention
- Flexible I/O features
- Up to 45 GPIOs
- True 5V IOs
- Enhanced communication interfaces include UART, I2C, and SPI
- Intelligent digital peripherals
- 3-channel DMA controller
- Five timers supporting up to 18 PWM channels
- Windowed watchdog timer (WWDT)
- Independent watchdog timer (IWDT)
- RTC with alarm and calendar mode
- Beeper generating 1/2/4/8kHz square wave to drive an external beeper
- Clock system
- Internal 32MHz oscillator with up to ±1.2% accuracy (SYSOSC)
- Internal 32kHz low-frequency oscillator (LFOSC)
- External 4MHz to 32MHz crystal oscillator (HFXT)
- External 32kHz crystal oscillator (LFXT)
- External low-frequency (LF) and high-frequency (HF) digital clock inputs
- Data integrity
- Flexible firewalls for protecting code and data
- Cyclic redundancy checker (CRC-16)
- 2-pin serial wire debug (SWD) development support
- Variety of package options
Applications
- Appliances
- Battery charging and management
- Power supplies and power delivery
- Personal electronics
- Building security and fire safety
- Factory automation control
- Connected peripherals and printers
- Smart metering
- Communication modules
- Medical and healthcare
- Lighting
Functional Block Diagram
