Choosing the right microcontroller (MCU) is a crucial step in creating efficient, cost-effective, and scalable applications. Designers should be able to find a product that achieves a balance between processing power, power consumption, memory, analog integration, and peripheral devices to meet the performance requirements of the application.
Texas Instruments (TI) provides Arm based solutions ® Cortex ®- The full range of MCU products with M0+cores are characterized by low power consumption, low cost, and high efficiency. These 32-bit processors are highly suitable for applications that require real-time performance without incurring significant computational overhead.
The Cortex-M0+architecture provides a balanced foundation for various embedded designs, covering a wide range of applications from basic sensor nodes to advanced motor control units.
TI has launched a comprehensive range of MCUs for designers, covering three major series of its Arm Cortex-M0+microcontroller products. All products have different levels of simulation functions, covering functions from basic to highly "rich". These analog functions can include integrated peripherals such as 12 bit ADCs, operational amplifiers, timers, communication interfaces (UART, I2C, SPI), etc., thereby minimizing the need for external components. Designers can choose from various packaging types such as QFN and TSSOP to adapt to the limitations of physical space.
MSPM0 G Series - This series of MCUs provides the highest level of integrated analog functionality, designed specifically for general-purpose applications, especially those that require high-performance mixed signal functionality. This series features a CPU speed of up to 80 MHz and up to 512 KB of flash memory, as well as a multi-channel 12 bit, 1 MSPS ADC, and up to three integrated operational amplifiers and various analog comparators.
The MSPM0G3107SRHBR (Figure 1) operates at a frequency of up to 80 MHz and features 128 KB of flash memory and 32 KB of SRAM. This device integrates two 12 bit, 4 MSPS ADCs for simultaneous sampling, as well as up to 111 external channels and a general-purpose amplifier (GPAMP). In addition, the device also has a controller area network interface that supports CAN 2.0/3.0 and CAN-FD, four UART, two I ² C, and two SPI interfaces, enhancing communication capabilities. These functions can adapt to various applications such as motor control and industrial automation. Other models of this MCU are equipped with 32 KB flash memory and 16 KB RAM or 64 KB flash memory and 32 KB RAM.
Figure 1: Typical dimensions of MSPM0G310x MCU. (Image source: Texas Instruments)
MSPM0 L series - These devices achieve a balance between low power consumption and analog functionality, and are optimized for applications such as sensors and battery powered devices. This series has a clock speed of up to 32 MHz and 8 KB to 256 KB of flash memory, uses a 12 bit ADC, analog comparator, and may include a single operational amplifier.
In this series, the MSPM0L1306SRTRR (Figure 2) operates at a frequency of up to 32 MHz and features 64 KB of flash memory and 4 KB of SRAM. It integrates a 12 bit, 1.68 MSPS ADC (up to 10 external channels), two zero drift operational amplifiers, and a high-speed comparator with an 8-bit reference DAC. This device is highly suitable for sensor and analog front-end applications, as long-term stability and offset correction functions are crucial in such applications.