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
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 -
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 -
"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
FAQs
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Octal-SPI Flash available for RZ/A2M, RZ/A3UL
The Octal-SPI Flash 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 Macronix, so please refer to the Macronix's website.
Dec 20, 2023 -
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 -
OS support of RZ/A3UL
Yes. Renesas provides a flexible software package (FSP) to enable you to freely select an RTOS. This allows you to use the RZ/A3UL with your preferred RTOS as necessary. However, some of the middleware stack is dependent on the FreeRTOS currently, so we plan to integrate the RTOS ...
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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