Overview
Description
The RZ/A3UL allows customers to achieve the full potential of a real-time operating system (RTOS) while leveraging the performance boost provided by the 64-bit Arm® Cortex®-A55 CPU core with a maximum operating frequency of 1 GHz. It integrates an Octal-SPI memory interface that facilitates simpler and more compact board designs. In addition, it includes versions that support a DDR3L/DDR4 memory interface to enable connection of high-speed DRAM.
Using an RTOS allows systems to start up instantly, in less than a second after boot-up. This feature is ideal for systems that require a fast response time such as industrial equipment, home appliances and office automation equipment with liquid crystal displays or control panels, as well as audio equipment and POS terminals.
Features
- Cortex-A55 (Single)
- LCD Controller
- Camera interface (MIPI-CSI)
- Display interface (Parallel-IF)
- USB2.0 interface 2ch, SD interface 2ch
- CAN interface (CAN-FD)
- Gigabit Ethernet 2ch
- Memory error detection / correction (ECC)
- OctaRAM or DDR4/DDR3L memory interface
- BGA package (13 x 13mm)
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
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RZ/A3UL EVK - Unable to read correct values from ADC Channel 1
Hello, I am testing out the ADC Example Project for the RZ/A3UL Octal Edition Evaluation Kit, and reading values from ADC_CHANNEL_0 works fine, however, if I adjust the code to read from CH1 I get incorrect values. The only line of the code which I adjusted ...
Apr 25, 2024 -
"Jlink RTT is not supported for this setup" and "Jlink RTT Viewer cannot read the buffer" issue for rz/a3ul (CA55 Core) project.
Hello everyone!We are trying to print logs using the latest Segger RTT version. Our project uses the rz/a3ul (CA55 Core) which is supported as mentioned in the " wiki.segger.com/J-Link_ARMv8-AR " link. We attempted to use below solution: Using the J-link script ...
Mar 12, 2024 -
Live object detection on RZ/A3UL using TensorFlow Lite Micro
We are trying to run a machine learning model on a custom RZ/A3UL based board that captures a frame from the connected camera and detect the objects in it. In order to accomplish this we first created 2 different samples. A sample that runs an object detection model ...
Jul 3, 2025
FAQs
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RZ/A3UL: Is there a PMIC that can be used in combination with the RZ/A3UL?
We provide a PMIC (DA9062) with a design optimized for the RZ/A3UL. https://www.renesas.com/products/power-power-management/multi-channel-power-management-ics-pmics/ssdsoc-power-management-ics-pmic-and-pmus/da9062-designed-applications-requiring-85
Aug 4, 2022 -
Octal-SPI RAM available for RZ/A2M, RZ/A3UL
The Octal-SPI RAM which can be connected to RZ/A2M and RZ/A3UL is products which supports the ‘Octa Peripheral Interface’ (OPI) proposed by Macronix. Specifically, those are products of Apmemory, so please refer to the Apmemory's website.
Dec 20, 2023 -
OctaFlash connection of RZ/A3UL
Confirm the connectivity of the flash memory to be used with its manufacturer. Note also that multiple flash memory devices cannot be connected to the RZ/A3UL because it has 1 channel (4-bit).
Aug 4, 2022
Videos & Training
The video time is just 1 minute.
RZ/A3UL supports FreeRTOS and Azure RTOS. As free of charge GUI tools, ‘Guiliani-Lite’ is available for FreeRTOS and ‘GUIX’ for Azure RTOS.
News & Blog Posts
Blog Post
Jul 21, 2023
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Blog Post
Aug 4, 2022
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