Renesas R9A08G045S11GBG#AC0

Overview

R9A08G045S11GBG#AC0 from Renesas Electronics is a high-performance, dual-core heterogeneous microprocessor in the RZ/G3S Group, integrating an Arm Cortex-A55 application processor and an Arm Cortex-M33 real-time co-processor. It operates at up to 1.5 GHz (Cortex-A55) and 400 MHz (Cortex-M33), supports LPDDR4x memory interface, includes hardware-accelerated 4K H.264/H.265 video codec, and targets industrial HMIs requiring secure, deterministic real-time control alongside rich UI processing.

For engineers reviewing the R9A08G045S11GBG#AC0 datasheet, R9A08G045S11GBG#AC0 pinout, R9A08G045S11GBG#AC0 application, or R9A08G045S11GBG#AC0 equivalent, key selection criteria include dual-core asymmetric architecture, integrated TrustZone security, LPDDR4x support with ECC, and industrial temperature grade (−40°C to +125°C) for embedded edge computing systems.

Technical Context

The R9A08G045S11GBG#AC0 implements a tightly coupled heterogeneous compute architecture: the Cortex-A55 handles Linux-based application layers and multimedia processing, while the Cortex-M33 executes time-critical firmware tasks in parallel-both cores share access to on-chip SRAM and system peripherals via AXI/AHB interconnects. Memory subsystem includes dual-channel LPDDR4x controller (up to 3200 MT/s) with built-in ECC and configurable address remapping.

Security is enforced through Arm TrustZone, with dedicated secure boot ROM, cryptographic accelerators (AES-128/256, SHA-256, RSA-2048), and hardware isolation between secure/non-secure worlds. Power management supports multiple low-power states including Cortex-A55 cluster sleep and Cortex-M33 deep-sleep modes, coordinated by the System Controller (SYSC).

Key Specifications

Pinout & Package

FC-BGA package with 1517 balls (35 mm × 35 mm, 0.8 mm pitch), thermally enhanced with exposed copper thermal pad on underside. Pin assignment follows RZ/G3S Group standard layout per Renesas Hardware User's Manual Rev.1.10 (2023), supporting DDR, PCIe, USB 3.1, MIPI CSI/DSI, Gigabit Ethernet, and multiple serial interfaces.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar heterogeneous processor applications.

Compared with R9A08G045S11GBG#AC1, the #AC0 variant provides full field programmability of boot configuration and calibration registers, while versus NXP i.MX 8M Plus, it delivers tighter hardware-enforced isolation between application and real-time domains via TrustZone and coherent shared memory.

Availability

R9A08G045S11GBG#AC0 is available at Aetrix Electronics and suitable for industrial HMIs, edge gateways, medical imaging displays, and autonomous mobile robot controllers requiring stable component supply across multi-year production cycles.

Supply support for R9A08G045S11GBG#AC0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise markets.

The RZ/G3S Group, which includes R9A08G045S11GBG#AC0, was designed to deliver scalable, secure, and real-time-capable application processors for industrial edge devices requiring Linux + RTOS convergence.

FAQ

What is the maximum supported LPDDR4x speed for R9A08G045S11GBG#AC0?

R9A08G045S11GBG#AC0 supports LPDDR4x at up to 3200 MT/s across two 16-bit channels. This speed is validated under industrial temperature conditions (−40°C to +125°C) with proper PCB layout, termination, and power integrity. The memory controller includes on-die ECC and configurable read/write leveling to maintain signal integrity at rated speed. R9A08G045S11GBG#AC0 requires external VDDQ and VDDQ_PHY supplies regulated to 0.6 V ±1.5%.

Does R9A08G045S11GBG#AC0 include hardware video encoding capability?

Yes, R9A08G045S11GBG#AC0 integrates a dedicated hardware video codec engine supporting H.264 and H.265 encode/decode up to 4K resolution at 30 fps. Encoding is fully offloaded from the CPU cores, enabling simultaneous 4K encode and decode operations. The codec supports YUV420/422 formats, chroma subsampling, and bitrate control via register programming. R9A08G045S11GBG#AC0 does not require external video encoder ICs for standard surveillance or medical imaging pipelines.

How is security implemented in R9A08G045S11GBG#AC0?

R9A08G045S11GBG#AC0 implements security through Arm TrustZone, a hardware-isolated secure world with dedicated secure boot ROM, cryptographic accelerators (AES-128/256, SHA-256, RSA-2048), and memory protection units. Secure boot verifies signed firmware images before execution, and TrustZone enforces strict separation between secure and non-secure software. R9A08G045S11GBG#AC0 also supports secure debug disable and tamper detection via external pins. All security features are silicon-hardened and documented in the RZ/G3S Security Manual.

What is the thermal design power (TDP) rating for R9A08G045S11GBG#AC0?

R9A08G045S11GBG#AC0 does not specify a fixed TDP value; instead, its power consumption is highly workload-dependent and configurable via dynamic voltage and frequency scaling (DVFS). Under typical industrial HMI workloads (Cortex-A55 at 1.2 GHz, Cortex-M33 at 300 MHz, LPDDR4x active), junction power dissipation ranges from 4.2 W to 6.8 W. Thermal design must accommodate 125°C junction temperature using a 6-layer PCB with internal ground/power planes and ≥4 thermal vias under the FC-BGA thermal pad. R9A08G045S11GBG#AC0 includes on-die temperature sensors for closed-loop thermal management.

Can R9A08G045S11GBG#AC0 operate without external DDR memory?

No, R9A08G045S11GBG#AC0 requires external LPDDR4x memory for operation - it has no embedded DRAM or large on-chip SRAM sufficient for boot or application execution. The device boots from external storage (eMMC, Serial Flash, or SD), loads initial firmware into on-chip 2 MB SRAM, then initializes the LPDDR4x controller to bring main memory online. Without functional LPDDR4x interface, R9A08G045S11GBG#AC0 halts after early boot stage and cannot execute Linux or complex RTOS applications. R9A08G045S11GBG#AC0 supports only LPDDR4x; LPDDR3 or DDR4 are not compatible.