Renesas – RZ/A1 Series: The Renesas RZ Family of ARM-based High-Performance MPUs Innovative Architecture & Advanced Integration

Renesas RZ/A1 series microprocessors (MPUs) offer an innovative architecture based on the ARM Cortex®-A9 processor and up to an industry-leading 10MB of on-chip memory. RZ/A1 MPUs can execute code at 1000 DMIPS from the abundant on-chip memory or in-place from inexpensive QSPI memory, while using on-chip memory for graphics buffering up to WXGA (1280×800) resolution. The 128-bit wide internal memory bus with x4 parallel access enables higher-throughput memory access as compared to systems with external DDR memory. The RZ/A1 series offers enormous advantages in terms of BOM cost, performance, power consumption, and system design time, making it the right choice for HMI (Human Machine Interface) and other system-on-chip applications.

  • Remove the need for external DRAM
  • Execute code from on-chip RAM or in-place from inexpensive serial flash memory
  • Choose from three sizes of on-chip RAM: 3MB (RZ/A1L), 5MB (RZ/A1M), and 10MB (RZ/A1H)
  • Match system peripheral requirements to three device variants to reduce BOM cost
  • Implement up to two independent LCD displays with WXGA (1280×800) resolution for impressive graphical user interfaces

Renesas RZ/A1 solution streamlines board design and reduces BOM cost

Up to 10MB on-chip RAM

  • For code execution/data buffering 128-bit memory bus
  • With parallel (x4) access to deliver superior memory throughput

Execute-In-Place (XIP) from inexpensive QSPI memory

  • With three layers of cache

LCD controller to drive up to two independent WXGA displays

  • For vivid displays
Lower BOM Cost

  • No external SDRAM or LCD controller
  • Simpler voltage regulators
  • Reduced PCB layers

Increased Performance

  • 1000 DMIPS at 400MHz
  • 6x throughput of 333MHz 16-bit DDR2

Decreased Power Consumption

  • Fewer board components
  • No copying of code from flash to RAM

Accelerate Time to Market

  • Simpler PCB design
  • Decreased EMI via reduced switching
  • No DDR procurement issues


Get on the RZ Express! Fast track your next Renesas RZ/A1 design with Express Logic ThreadX® RTOS, middleware stack and more at no cost to you!

Renesas and Express Logic have teamed up to bring you the RZ Express promotion! This is a chance for qualified production customers of the Renesas RZ/A1 microprocessor (MPU) to apply to receive a single-product license of Express Logic ThreadX® real-time operating system (RTOS) and middleware stack at no cost. Customers who are chosen to receive this valuable single-product license free of charge will also enjoy free software support from Express Logic for 90 days. The RZ Express promotion is available for a limited time, so apply today!
For more information on Renesas and Express Logic, go to

RZ Express Benefits

  • No royalties! No licensing fees!
  • Speed your time to revenue with ThreadX by Express Logic
  • Differentiate your product with RZ/A1 ARM® Cortex-A9 MPUs by Renesas
  • Using the Express Logic RTOS and middleware, including GUIX™, enables designers to quickly and effectively build differentiated HMI solutions on top of the Renesas RZ/A1 hardware platform