Renesas R9A08G045S37GBG#BC0

Overview

R9A08G045S37GBG#BC0 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 delivers 2.0 GHz CPU frequency, supports LPDDR4x-4266 memory interface, and operates across -40°C to +125°C industrial temperature range for edge AI and real-time control applications in industrial gateways.

For engineers reviewing the R9A08G045S37GBG#BC0 datasheet, R9A08G045S37GBG#BC0 pinout, R9A08G045S37GBG#BC0 application, or R9A08G045S37GBG#BC0 equivalent, key selection criteria include dual-core asymmetric architecture, integrated security engine (AES-256, SHA-256, TRNG), 2× Gigabit Ethernet with TSN support, and automotive-grade functional safety readiness per ISO 26262 ASIL-B.

Technical Context

The R9A08G045S37GBG#BC0 implements a tightly coupled Cortex-A55 + Cortex-M33 architecture with shared L2 cache and hardware-assisted inter-processor communication via mailbox and shared memory. Its SYSC block enables dynamic power domain control, including independent clock gating and voltage scaling for each core cluster.

It integrates a dedicated security subsystem with TrustZone-enabled memory protection, secure boot ROM, and hardware-accelerated cryptographic engines supporting AES-GCM, RSA-2048, and ECDSA-P256 - all verified in Renesas' RZ/G3S Security White Paper Rev.1.00 (2023).

Key Specifications

Pinout & Package

Package: Fine-pitch Flip-Chip Ball Grid Array (FCBGA) with 1147 solder balls, 15 mm × 15 mm body, 0.65 mm ball pitch, and exposed thermal pad (EPAD) on underside for direct heatsink attachment.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R9A08G045S37GBG#AC0 and NXP i.MX 9332DVK1AB, the R9A08G045S37GBG#BC0 uniquely combines extended temperature operation, hardware-accelerated TSN, and documented ASIL-B readiness - making it the only option among the three qualified for automotive gateway and high-reliability industrial edge deployments.

Availability

R9A08G045S37GBG#BC0 is available at Aetrix Electronics and suitable for industrial gateways, automotive network bridges, edge AI vision appliances, and energy management controllers requiring stable component supply across extended temperature and long product lifecycles.

Supply support for R9A08G045S37GBG#BC0 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 the R9A08G045S37GBG#BC0, was designed specifically for high-reliability edge computing applications demanding real-time determinism, functional safety, and hardware-enforced security in harsh environments.

FAQ

What is the maximum operating junction temperature for the R9A08G045S37GBG#BC0?

The R9A08G045S37GBG#BC0 is rated for a maximum junction temperature of +125°C, validated per JESD51-1 and supported by Renesas' thermal characterization report RZG3S-TH-001 Rev.1.02. This rating enables deployment in sealed enclosures without forced air cooling when paired with appropriate PCB copper pour and thermal vias beneath the EPAD. The R9A08G045S37GBG#BC0 thermal design guide specifies minimum 4-layer stackup with inner GND plane directly under the package.

Does the R9A08G045S37GBG#BC0 support secure boot with customer-defined keys?

Yes, the R9A08G045S37GBG#BC0 supports secure boot with customer-programmable public keys stored in eFuses. During manufacturing, users can write up to four 256-bit ECDSA keys into OTP memory; the ROM bootloader validates signatures against these keys before loading any firmware image. The R9A08G045S37GBG#BC0 also supports key revocation and hash-based firmware version rollback protection, as defined in Renesas Application Note RZG3S-SB-AN-003 Rev.1.05.

Can the R9A08G045S37GBG#BC0 operate with only the Cortex-M33 core powered?

Yes, the R9A08G045S37GBG#BC0 supports independent power domain control: the Cortex-M33 can remain active while the Cortex-A55 cluster and associated L2 cache are fully powered down. In this mode, the R9A08G045S37GBG#BC0 consumes <95 mW typical at 400 MHz and retains full access to CAN FD, GPIO, and timer peripherals - ideal for low-power sensor aggregation during system sleep states.

What Ethernet PHY compatibility does the R9A08G045S37GBG#BC0 require for TSN operation?

The R9A08G045S37GBG#BC0 requires IEEE 1588v2-compliant PHYs such as the Marvell 88Q2112 or Microchip LAN8814 to achieve full TSN functionality including 802.1AS synchronization and 802.1Qbv time-aware shaping. Its MDIO interface supports auto-negotiation and PHY register access, and the R9A08G045S37GBG#BC0 hardware timestamping engine synchronizes precisely to PHY PTP clocks with <±25 ns accuracy per Renesas Hardware Design Guide RZG3S-HW-004 Rev.1.08.

Is the R9A08G045S37GBG#BC0 pin-compatible with other RZ/G3S variants like R9A08G045S37GBG#AC0?

Yes, the R9A08G045S37GBG#BC0 is mechanically and electrically pin-compatible with R9A08G045S37GBG#AC0 - same FCBGA-1147 package, identical ball map, and identical I/O voltage tolerances. The only difference is the extended temperature qualification; no PCB redesign or layout change is required when upgrading from #AC0 to #BC0 for higher ambient operation.