1 Features
• Core
– Arm® 32-bit Cortex®-M0+ CPU, frequency up to
32MHz
• Operating characteristics
– Extended temperature: –40°C to 125°C
– Supply voltage range: 4.5V to 5.5V
• Memories
– Up to 64KB of flash
– 8KB of SRAM
• High-performance analog peripherals
– One analog-to-digital converter (ADC) with up
to 27 total external channels, 1.6-Msps@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
• Intelligent digital peripherals
– 3-channel DMA controller
– Five timers supporting up to 18 PWM channels
• One 16-bit advanced timers with deadband
support up to 8 PWM channels
• One 16-bit general purpose timer with
4 capture/compares
• Two 16-bit general purpose timers with
2 capture/compares
• One 16-bit general purpose timer with
2 capture/compares and QEI
– Windowed watchdog timer (WWDT)
– Independent watch dog timer (IWDT)
– RTC with alarm and calendar mode
– BEEPER generating 1/2/4/8kHz square wave to
drive an external beeper
• Enhanced communication interfaces
– UART interfaces supporting low-power
operation in STANDBY mode
• One advanced UART instance supporting
LIN, IrDA, DALI, Smart Card, & Manchester
coding
– Two I2C interfaces supporting FM+ (1Mbit/s),
SMBus/PMBus, and wakeup from STOP mode,
– One SPI supporting up to 16Mbit/s
• 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
– Cyclic redundancy checker (CRC-16)
• Flexible I/O features
– Up to 45 GPIOs
– True 5V IOs
• Development support
– 2-pin serial wire debug (SWD)
• Package options 1
– 48-pin LQFP (PT), VQFN (RGZ)
– 44-pin LQFP (NNA)
– 32-pin VSSOP (DGS32), VQFN (RHB), LQFP
(VFC)
– 28-pin VSSOP (DGS28)
– 24-pin VQFN (RGE)
– 20-pin VSSOP (DGS20), WQFN (RUK)
• Family members (also see Device Comparison)
– MSPM0H3216: 64KB of flash, 8KB of RAM
– MSPM0H3215: 32KB of flash, 8KB of RAM
• Development kits and software (also see Tools
and Software)
– LP-MSPM0H3216 LaunchPad™ development
kit
– MSP Software Development Kit (SDK)

2 Applications
• Appliances
• Battery charging and management
• Power supplies and power delivery
• Personal electronics
• Building security and fire safety
• Connected peripherals and printers
• Factory Automation Control
• Smart metering
• Communication modules
• Medical and healthcare
• Lighting

3 Description
MSPM0H321x microcontrollers (MCUs) are part of the MSP highly-integrated 5V power supply and 32-bit
MCU family based on the enhanced Arm® Cortex®-M0+ core platform operating at up to 32MHz frequency.
These cost-optimized MCUs offer high-performance analog peripheral integration, support extended temperature
ranges from -40°C to 125°C, and operate with supply voltages from 4.5V.
The MSPM0H321x devices provide up to 64KB embedded flash program memory with 8KB SRAM. These
MCUs incorporate a high-speed on-chip oscillator with an accuracy up to ±1.2%, eliminating the need for
an external crystal. Additional features include a 3-channel DMA, CRC-16 accelerator, and a variety of highperformance
analog peripherals such as one 12-bit 1.6Msps ADC with VDD as the voltage reference, and an
on-chip temperature sensor. These devices offer intelligent digital peripherals such as one 16-bit advanced
timer, four 16-bit general purpose timer, one windowed watchdog timer, one independent watchdog timer, and
a real-time clock (RTC). These devices also offer a variety of communication peripherals including three UART,
one SPI, and two I2C. These communication peripherals offer protocol support for LIN, IrDA, DALI, Manchester,
smart card, SMBus, and PMBus.
The TI MSPM0 family of low-power MCUs consists of devices with varying degrees of analog and digital
integration enabling customers to find the MCU that meets their project needs. The architecture combined with
extensive low-power modes is optimized to achieve extended battery life in portable measurement applications.
MSPM0H321x MCUs are supported by an extensive hardware and software ecosystem with reference designs
and code examples to get the design started quickly. Development kits include a LaunchPad™ kit available for
purchase and design files for a target-socket board. TI also provides a free MSP Software Development Kit
(SDK), which is available as a component of Code Composer Studio™ IDE desktop and cloud version within
the TI Resource Explorer. MSPM0 MCUs are also supported by extensive online collateral, training with MSP
Academy, and online support through the TI E2E™ support forums.
For complete module descriptions, see the MSPM0H-Series 32MHz Microcontrollers Technical Reference
Manual.