Renesas introduces RZ/A3M MPU for cost-sensitive HMI applications

Renesas announced the RZ/A3M, a new microprocessor (MPU) in its RTOS-based RZ/A series, on May 19, 2025. The RZ/A3M is designed for advanced human-machine interface (HMI) systems, supporting video and camera output on LCD panels with resolutions up to 1280x800. It targets applications in home appliances, industrial and office automation, healthcare devices, and building control systems.

The RZ/A3M features a 64-bit Arm Cortex-A55 core with a maximum operating frequency of 1 GHz and 128 KB of on-chip SRAM. It integrates 128MB DDR3L-SDRAM in a System-in-Package (SiP), eliminating the need for a high-speed signal interface for external memory. The MPU supports QSPI for external NAND and NOR flash for data and code storage, with high-capacity NAND flash as a cost-effective memory expansion option. Its 244-pin LFBGA package, measuring 17mm x 17mm with a 0.8mm pitch, has a pin layout with two main rows on the outer edge, enabling simpler PCB routing and supporting low-cost, dual-layer printed wiring board designs.
Renesas provides a development environment for the RZ/A3M, including the Flexible Software Package (FSP), evaluation kits, development tools, and sample software. Graphical user interface solutions from partners such as LVGL, Crank, SquareLine Studio, and Envox will be ava...