MSPM33C321A
160MHz Arm® Cortex®-M33 MCU with TrustZone®, 1MB flash, 256kB SRAM, QSPI, 2x CAN-FD and security
MSPM33C321A
- Core
- 160MHz Arm 32-bit Cortex-M33 CPU with TrustZone, FPU, and DSP extensions
- 4kB instruction cache for 0 wait-state execution
- Operating characteristics
- Extended temperature: –40°C up to 125°C
- Wide supply voltage range: 1.71 V to 3.6 V
- Memories
- Up to 1MB of flash memory with error correction code (ECC)
- Dual-bank with address swap
- 256kB of SRAM with ECC
- EEPROM operations using 32kB high-endurance data flash
- Up to 1MB of flash memory with error correction code (ECC)
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Security
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Immutable Root of Trust (RoT) in ROM, supports secure firmware installation, boot and key provisioning
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Global Security Controller with dynamic access controls for flash, SRAM, and peripherals
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AES256 hardware accelerator with GCM
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SHA256 hardware accelerator with HMAC
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Public Key Accelerator (PKA)
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32-bit true random number generator (TRNG)
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- High-performance analog peripherals
- Two high-speed 9.4-Msps 12bit analog-to-digital converters (ADCs) with up to 36 external channels
- Two high-speed/low-power comparators (COMP)
- Two externally available 8-bit DACs
- Configurable 1.4V or 2.5V internal shared voltage reference (VREF)
- Integrated temperature & supply monitor
- Optimized low-power modes
- RUN: 207µA/MHz (CoreMark)
- STANDBY: 16µA with CPU execution resume and 64kB SRAM retention
- SHUTDOWN: <100nA with IO wake-up capability
- Optimized digital peripherals
- Two DMA controllers with 16 total channels
- Nine timers support up to 30 PWM channels
- Two 16-bit advanced timers with deadband, fault handling, and complementary pair
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Four 16-bit general-purpose timers
- One 32-bit general-purpose timer
- Two 16-bit general-purpose timer supporting quadrature encoder interface
- One window-watchdog timer
- CRC16/32 module
- Enhanced communication interfaces
- Quad SPI (QSPI) for external memory up to 20Mbytes/s
- Two Controller Area Network (CAN) interfaces support CAN 2.0A/B and CAN-FD
- Three configurable serial interfaces supporting UART (LIN) or I2C (SMBus/PMBus)
- Four configurable serial interfaces supporting UART, I2C, or SPI
- Two dedicated I2C interfaces support up to FM+ (1Mbit/s), SMBus/PMBus
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One dedicated SPI interface
- One dedicated UART interface supporting LIN, IrDA, DALI, Smart Card, Manchester
- Two digital audio interfaces support full duplex I2S and TDM (16-slots)
- VBAT island (auxiliary supply)
- Independent supply with dedicated VBAT pin
- Real-time clock (RTC)
- Three tamper detection IO with timestamp
- Independent watchdog timer (IWDT)
- 32B backup memory
- Clock system
- Internal 32MHz oscillator (SYSOSC)
- Phase-locked loop (PLL)
- Internal 32kHz oscillator (LFOSC)
- External 4 to 48MHz crystal oscillator (HFXT)
- External 32kHz crystal oscillator (LFXT)
- External clock input
- Flexible I/O features
- Up to 93 GPIOs
- Development support
- 2-pin serial wire debug (SWD)
- Package options
- 100-pin LQFP (0.4mm & 0.5mm pitch)
- 80-pin LQFP (0.5mm pitch)
- 64-pin LQFP (0.5mm pitch)
- 48-pin VQFN (0.5mm pitch)
- 100-pin nFBGA (0.8mm pitch)
- Family members (also see Device Comparison)
- MSPM33C321A: 1MB flash, 256KB SRAM
- MSPM33C3219: 512KB flash, 256KB SRAM
- Development kits and software (also see Tools and Software)
- LaunchPad EVM LP-MSPM33C321A
- MSP Software Development Kit (SDK)
MSPM33C32xx micontrollers (MCUs) are part of the MSP general purpose 32-bit MCU family operating at up to 160MHz based on the Arm Cortex-M33 32-bit core with Arm TrustZone technology, DSP, and FPU. This family of MCUs features flexible communication interfaces, high-performance analog, and security accelerators. The extended temperature range and wide supply voltage range make this family of MCUs suitable for a variaety industrial, enterprise and personal electronics applications.
MSPM33C32xx MCUs provide up to 1MB of embbeded flash program memory and 256kB SRAM. An additional high-endurance 32kB flash data bank is provided for application data storage. All memories feature built-in error correction code (ECC) across the entire memory range to ensure robust operation across their entire lifetime.
MSPM33C32xx MCUs offer many different types of digital communication interfaces including CAN, I2S/TDM, Quad SPI (QSPI), UART, I2C, and SPI. Configurable serial interfaces can be dynamically assigned in software as UART, I2C and optionaly SPI. Flexilbity in configuraiton and pinout gives system designers a simple path to support challenging requirments.
MSPM33C32xx MCUs also feature high performance integrated analog peripherals such as two 12bit 9.4 MSPS simultaneous sampling ADC and two high-speed comparators. Comparators can be used internally for fault detection with advanced timers or externally as low-power voltage monitors.
MSPM33C32xx MCUs contain a robust collection of security features. TrustZone technology and the Global Security Controller provide a complete feature set to build secure applications. These devices also feature an immutable root of trust (RoT) which provides secure boot, install and key provisioning out of the box. MSPM33C32xx also includes hardware acceleration for AES, SHA and Public Key algorithms (RSA and ECC).
MSPM33C series of devices is pin-to-pin compatible with other MSPM33C devices in the same package. MSPM33C series is also highly pin-to-pin compatible with MSPM0 devices. In scenerios where there are differences between MSPM33C and MSPM0 devices users can use TI System Configurator or provided documentation to understand how to navigate minor incompatibilities.
MSPM33C family of 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 available for purchase. 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. MSPM33C MCUs are also supported by extensive online collateral, training with MSP Academy, and online support through the TI E2E™ support forums.
Technical documentation
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | MSPM33C321x Mixed-Signal Microcontrollers datasheet | PDF | HTML | 12 Dec 2025 |
| * | Errata | MSPM33C32xx Mixed Signal Microcontrollers Errata | PDF | HTML | 08 Dec 2025 |
| User guide | MSPM33C3 TRM | 12 Dec 2025 | ||
| User guide | MSPM33C Security User Guide | PDF | HTML | 11 Dec 2025 | |
| Application note | Migration Guide between MSPM0Gx5x9 and MSPM33C32xx | PDF | HTML | 11 Dec 2025 | |
| Application note | LVGL Use On MSPM33C | PDF | HTML | 09 Dec 2025 | |
| User guide | MSPM33 Bootloader | PDF | HTML | 09 Dec 2025 | |
| Application note | MSPM33 C-Series MCUs Hardware Development Guide | PDF | HTML | 08 Dec 2025 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
LP-MSPM33C321A — MSPM33C321A LaunchPad™ development kit evaluation module
MSPM33-SDK — MSPM33 Software Development Kit (SDK)
Supported products & hardware
Products
Arm Cortex-M4 MCUs
Hardware development
Evaluation board
Software
IDE, configuration, compiler or debugger
MSPM33-RESTRICTED-MCAL — MSPM33 Microcontroller Abstraction Layer for AutoSAR
Supported products & hardware
Products
Arm Cortex-M4 MCUs
Hardware development
Evaluation board
CCSTUDIO — Code Composer Studio™ integrated development environment (IDE)
Code Composer Studio is an integrated development environment (IDE) for TI's microcontrollers and processors. It is comprised of a rich suite of tools used to build, debug, analyze and optimize embedded applications. Code Composer Studio is available across Windows®, Linux® and macOS® platforms.
(...)
Supported products & hardware
This design resource supports most products in these categories.
Check the product details page to verify support.
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parametric-filter Microprocessors & DSPs -
parametric-filter Microcontrollers -
parametric-filter Wi-Fi products -
parametric-filter Low-power 2.4-GHz products -
parametric-filter Signal conditioners -
parametric-filter mmWave radar sensors
SYSCONFIG — Standalone desktop version of SysConfig
SysConfig is a configuration tool designed to simplify hardware and software configuration challenges to accelerate software development.
SysConfig is available as part of the Code Composer Studio™ integrated development environment as well as a standalone application. Additionally SysConfig (...)
Supported products & hardware
Products
Automotive mmWave radar sensors
C2000 real-time microcontrollers
Wi-Fi products
Industrial mmWave radar sensors
Arm Cortex-M4 MCUs
Arm Cortex-M0+ MCUs
Arm Cortex-R MCUs
Sub-1 GHz wireless MCUs
Automotive wireless connectivity products
Low-power 2.4-GHz products
Automotive driver assist SoCs
Audio & radar DSP SoCs
Automotive networking SoCs
Multimedia & industrial networking SoCs
UNIFLASH — UniFlash for most TI microcontrollers (MCUs) and mmWave sensors
UniFlash is a software tool for programming on-chip flash on TI microcontrollers and wireless connectivity devices and on-board flash for TI processors. UniFlash provides both graphical and command-line interfaces.
UniFlash can be run from the cloud on the TI Developer Zone or downloaded and used (...)
Supported products & hardware
Products
C2000 real-time microcontrollers
Arm Cortex-M0+ MCUs
Arm Cortex-R MCUs
Automotive mmWave radar sensors
Industrial mmWave radar sensors
Wi-Fi products
Arm Cortex-M4 MCUs
Audio & radar DSP SoCs
Multimedia & industrial networking SoCs
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| LQFP (PZ) | 100 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.