The MSPM33C321A is the high-end member of the Texas Instruments MSPM0 general-purpose MCU family, moving up from the Cortex-M0+ of smaller parts to a Cortex-M33 core with Arm TrustZone technology. This brings hardware-enforced isolation between trusted and non-trusted code for security-conscious designs.

• 160 MHz core with DSP instructions and single-precision FPU
• 1 MB flash and 256 KB SRAM
• Two CAN-FD controllers and QSPI at up to 20 MB/s
• AEC-Q100 Grade 1, with ISO 21434 cybersecurity planned

Two digital audio interfaces support full-duplex I2S and TDM, and up to 93 GPIO across 48- to 100-pin packages give the headroom for gateways, motor drives and sensor hubs. A dedicated VBAT island keeps a real-time clock, tamper detection and 32 bytes of backup memory alive on an independent supply.