High-performance automotive-grade MCU family for safety systems

Texas Instruments TMS570LS1227 16/32-Bit RISC Flash MCU, available now from Mouser, is a high-performance automotive-grade microcontroller family for safety systems. The safety architecture comprises dual CPUs in lockstep, CPU and memory BIST logic, parity on peripheral memories, ECC on both the flash and the data SRAM, and loopback capability on peripheral I/Os. The TMS570LS1227 device combines the ARM Cortex-R4F floating-point CPU, which provides an efficient 1.66DMIPS/MHz and has configurations that may run up to 180MHz, offering up to 298DMIPS. The device supports the word-invariant big-endian [BE32] format.

The device has 1.25MB of integrated flash and 192KB of data RAM with single-bit error correction and double-bit error detection. The flash memory on this product is a non-volatile, electrically erasable, and programmable memory. It is achieved with a 64-bit-wide data bus interface. The flash functions on a 3.3V supply input (same level as I/O supply) for all program, read, and erase operations. When in pipeline mode, the flash functions with a system clock frequency of up to 180MHz. The SRAM supports single-cycle read and write accesses in byte, halfword, word, and double-word modes throughout the supported frequency range.

The device offers peripherals for real-time control-based applications, incorporating two N2HET timing coprocessors with up to 44 I/O terminals, seven ePWM modules with up to 14 outputs, six eCAP modules, two eQEP modules, and two 12-bit ADCs supporting up to 24 inputs.

With integrated safety features and a broad variety of communication and control peripherals, the device is an excellent solution for high-performance real-time control applications with safety-critical requirements.

Typical applications include braking systems, electric power steering, HEV and EV inverter systems, battery management systems, ADAS, aerospace and avionics, railway communications, and off-road vehicles.