TI MSPM0
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| Designer | Texas Instruments |
|---|---|
| Bits | 32-bit |
| Introduced | 2023 |
| Version | ARM Cortex-M0+ |
| Endianness | Little |
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MSPM0 is a family of microcontroller integrated circuits by Texas Instruments, based on the 32-bit ARM Cortex-M0+ processor core. It is TI's entry into the low-end Cortex-M embedded microcontroller category[1].
The low-end embedded microcontroller market segment is currently dominated by STMicroelectronics, NXP, Infineon, Microchip and Renesas, as well as numerous Far Eastern clones. TI has been trying to increase their share of this important market segment, attempting to extend the success of their 16-bit MSP430 line by offering similar but more capable 32-bit ARM Cortex-M products. Their original attempt, the MSP432 family, had limited success and was deprecated in 2021.[2]. TI is an important supplier to the US domestic market because of their in-shore design and manufacturing facilities.[3]
Introduction
Like MSP430 and MSP432, MSPM0 is a general purpose embedded microcontroller. It has a rich set of internal peripheral devices and functions that is somehow compatible with widely used MSP430 chips, and is designed for low power requirements. It is simple, inexpensive, and includes very small, millimeter-sized packages.[4][5]
Families
The MSPM0 has four family variants:[6][7]
| Variant | MSPM0C | MSPM0H | MSPM0L | MSPM0G |
|---|---|---|---|---|
| Description | Entry level | Battery power | Low power | Advanced |
| Supply voltage | 1.62V..3.6V | 4.5V..5.5V | 1.62V..3.6V | 1.62V..3.6V |
| CPU clock (max) | 24..32 MHz | 32 MHz | 32 MHz | 80 MHz |
| Current (standby) | 2.5 μA | 3.6 μA | 1.1 μA | 1.7 μA |
| Current (active) | 100 μA/MHz | 106 μA/MHz | 123 μA/MHz | 125 μA/MHz |
| Flash memory | 8..64 KB | 4..32 KB | 8..256 KB | 32..512 KB |
| SRAM memory | up to 8 KB | up to 8 KB | 2 to 32 KB | 16 to 128 KB |
| Package pins | 8..20 | 20..48 | 16..80 | 20..100 |
| GPIO pins | 6..45 | 16..45 | 13..73 | 16..94 |
| Analog | 1x 1.68Msps 12-bit ADC 1x high-speed comparator |
1x 1.6Msps 12-bit ADC | 1x 1.68-Msps 12-bit ADC 1x high-speed comparator 2x op amps |
2x 2-Msps 12-bit ADC 3x high-speed comparator 2x op amps 1x 4-Msps 12-bit ADC |
| Communication (max) |
1xSPI 2xI2C Fast+ 3xUART (1 LIN) |
1xSPI 2xI2C 3xUART (1 LIN) |
2xSPI 3xI2C Fast+ 5xUART (2xLIN) |
3xSPI 3xI2C Fast+ 7xUART (2x LIN) 2xCAN-FD |
| Timers | 4 | 5 | 5 | 7 |
| Advanced Timers | 1 | 1 | 1 | 2 |
| Hardware Accelerator | N/A | N/A | N/A | Optional |
| Security | CRC | CRC | CRC | CRC, TRNG, AES256 |
The lowest end MSPM0C1103 bulk price is 16 US cents, and even the largest advanced models are around a dollar.[8] The MSPM0C1103/4 manual page also mentions two parts designated MSPS003F3 and MSPS003F4 that seem to be almost identical; they seem to be recommended as replacements for STMicroelectronics STM8[9]
The fourth digit of the part number (e.g. MSPM0C110n ) denotes the flash size, which can be calculated as 2n kB:
| ...3 | ...4 | ...5 | ...6 | ...7 | ...8 | ...9 |
|---|---|---|---|---|---|---|
| 8kB | 16kB | 32kB | 64kB | 128kB | 256kB | 512kB |
The amount of RAM tends to be between 1/8 and 1/16 of the flash size for the low-end models, and 1/2 to 1/4 of flash for the high end.
Unlike MSP432 Cortex-M4F, MSPM0 CPU does not implement floating point instructions. However, the G variant has a math coprocessor (MATHACL) that processes 32- and 64-bit fixed point numbers with dynamically selectable integer/fractional configuration.
The low power modes, including the shutdown mode, can be interrupted by I/O wakeups. Typical power consumption numbers are[10]
| Run | Sleep | Stop | Standby | Shutdown |
|---|---|---|---|---|
| 85 μA/MHz | 200 μA @ 4 MHz | 50 μA @ 32 kHz | 1.1 μA | 50 nA |
The CPU clock can be sourced from an internal high speed oscillator or an internal 32kHz oscillator.
The packages range from 8 pins (DSBGA, VSON, SOT) to 100 pins PQFP. The smallest DSBGA package is the size of a 0603 resistor (1.6 mm by 0.86 mm).
The power supply voltage range is 1.62 to 3.6V and the common operational temperature range is -40 °C to 125 °C An optional postfix -Q1 denotes a part with an automotive qualification.
Peripherals
Depending on package, there are between 6 and 94 GPIOs. All GPIO are qualified as 5V-tolerant.
All parts have a 12-bit successive-approximation ADC, between 1 and 7 UARTS, and between 1 and 3 I2C and SPI peripherals. Some parts include CAN bus interface. The UARTs support LIN, IrDA, DALI, smart card, Manchester and low-power operation in STANDBY mode.
The high precision analog peripherals include zero-drift zero crossover operational amplifiers, and high-speed comparators and DACs, as well as an integrated voltage reference and temperature sensors.
The DMA controller and advanced timers help offload CPU from routine data transfer and timekeeping tasks. There is a watchdog timer peripheral as well as a dedicated simple beeper oscillator.
Hardware development platforms
There are LaunchPad development boards for several chips in the family. [11] They have an USB interface to an on-board XDS110 SWD/JTAG development tool, connected to the respective target MCU, for downloading code and debugging, as well as the TI Energy Trace [12] real-time power and current measurement hardware.
Development tools
Cortex-M0+ is supported by Open Source tools: GCC and LLVM, using CLI as well as VSCode, and openOCD/gdb.
TI provides proprietary MSP Zero Code Studio[13] and Code Composer Studio, as well as middleware libraries for specialized tasks such as FOC motor drivers.
The parts are supported by FreeRTOS and Zephyr realtime operating systems.
See also
- ARM architecture, List of ARM microprocessor cores, ARM Cortex-M
- Microcontroller, Embedded system, Single-board microcontroller
- Interrupt, Interrupt handler, Comparison of real-time operating systems
References
- ↑ List, Jenny (2023). "New Part Day: TI Jumps In To The Cheap MCU Market". Hackaday. Retrieved 2025-09-01.
- ↑ "MSP432P401R: Is the MSP432 line discontinued?". Retrieved 2025-09-01.
- ↑ "TI domestic chip production". Retrieved 2025-09-01.
- ↑ Leibson, Stephen (2025). "MSPM0 is the world's most teeny 32-bit microcontroller". EE Journal Daily. Retrieved 2025-09-01.
- ↑ "TI introduces the world's smallest MCU". Retrieved 2025-09-01.
- ↑ "TI ARM Cortex-M0 MCUs". Retrieved 2025-09-08.
- ↑ "MSPM0 Quick Reference Guide" (PDF). Retrieved 2025-09-06.
- ↑ "TI ARM Cortex-M0 MCU product table". Retrieved 2025-09-01.
- ↑ "STM8 migration tool". Retrieved 2025-09-01.
- ↑ "MSPM0 L-Series MCUs Power Optimization Guide" (PDF). Retrieved 2025-09-01.
- ↑ "MSPM0 MCUs Quick Reference Guide" (PDF). p. 11. Retrieved 2025-09-09.
- ↑ "XDS110 Debug Probe" (PDF). p. 13. Retrieved 2025-09-09.
- ↑ "MSP Zero Code Studio". Retrieved 2025-09-01.
External links
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