RM44Lx20 16/32-Bit RISC Flash Microcontroller Texas Instruments RM44Lx20 16/32-Bit RISC Flash Microcontroller is part of the Hercules RM series of high-performance industrial-grade ARM® Cortex®-R-based MCUs. This microcontroller integrates the ARM Cortex-R4F floating-point CPU which offers an efficient 1.66 DMIPS/MHz, and has configurations which can run up to 180 MHz providing up to 298 DMIPS. The RM44Lx20 device supports the little-endian [LE] format. The RM44Lx20 device has up to 1MB of integrated flash and 128KB of RAM configurations with single-bit error correction and double bit error detection. The flash memory on this device is non-volatile, electrically erasable and programmable, and is implemented with a 64-bit-wide data bus interface. The flash operates on a 3.3V supply input (same level as the I/O supply) for all read, program, and erase operations. The SRAM supports single-cycle read and write access in a byte, halfword, word, and doubleword modes throughout the supported frequency range.