Renesas R7S910011CBG#AC0

Overview

R7S910011CBG#AC0 from Renesas Electronics is a high-performance real-time MCU featuring an Arm® Cortex-R4 processor (r1p4) operating at 450 MHz, delivering 747 DMIPS, with on-chip instruction/data cache (8 KB each, ECC-protected), TCM (512 KB ATCM + 32 KB BTCM, ECC), and integrated EtherCAT slave controller (2-port) for industrial motion control systems.

For engineers reviewing the R7S910011CBG#AC0 datasheet, R7S910011CBG#AC0 pinout, R7S910011CBG#AC0 application, or R7S910011CBG#AC0 equivalent, this device is selected for deterministic low-latency servo drive control where encoder interface compliance (EnDat 2.2, BiSS-C), dual CAN 2.0B channels, Ethernet MAC, and -40°C to +125°C junction temperature operation are required.

Technical Context

The R7S910011CBG#AC0 implements a dual-core real-time architecture centered on a 450 MHz Arm Cortex-R4 core with Harvard pipeline, FPU, MPU, and CoreSight debug support - optimized for hard real-time deterministic execution in motion control loops. It integrates dedicated hardware accelerators including an Event Link Controller (ELC) for interrupt-free peripheral chaining and Port Output Enable 3 (POE3) for safe PWM shutdown during fault conditions.

Its peripheral set is purpose-built for industrial automation: two EnDat/BiSS-C encoder interfaces (optional, confirmed for this variant), dual CAN FD-capable RSCAN modules (1 Mbps), EtherCAT slave IP (Beckhoff-licensed), and 33 timers including MTU3a (9-channel) and GPTa (4-channel) supporting three-phase PWM generation with dead-time insertion and A/D trigger synchronization.

Key Specifications

Pinout & Package

Package: 320-pin FBGA (PRBG0320GA-A), 17 mm × 17 mm, 0.8 mm pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time industrial control applications.

Compared with R7S910011CBG#AC0, R7S910002CBG removes encoder capability but retains identical package and core performance for cost-sensitive non-encoder applications, while R7S910013CBG upgrades clock speed and adds 1 MB SRAM for compute- and memory-intensive real-time tasks - both require separate validation due to functional and timing differences.

Availability

R7S910011CBG#AC0 is available at Aetrix Electronics and suitable for industrial servo drives, programmable logic controllers, robot joint controllers, and industrial Ethernet gateways requiring stable component supply across extended product lifecycles.

Supply support for R7S910011CBG#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 global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RZ/T1 Group, including R7S910011CBG#AC0, was designed specifically for deterministic real-time industrial automation - integrating EtherCAT, encoder interfaces, and safety peripherals to replace FPGA + MCU combinations in servo drives and motion controllers.

FAQ

What is the maximum operating frequency of the R7S910011CBG#AC0?

The R7S910011CBG#AC0 operates at a maximum CPU frequency of 450 MHz, delivering 747 DMIPS performance. This frequency is fixed for this variant (per Table 1.3), unlike other RZ/T1 members offering 300/600 MHz options. The 450 MHz clock is derived from a 25 MHz external crystal via on-chip PLL, with system and peripheral clocks (150 MHz, 75 MHz) generated deterministically for real-time consistency.

Does the R7S910011CBG#AC0 include on-chip extended SRAM?

No, the R7S910011CBG#AC0 does not include on-chip extended SRAM. As confirmed in Table 1.3 of the R01DS0228EJ0200 datasheet, this variant lists "Not supported" for On-Chip Extended SRAM Capacity. It relies on 512 KB ATCM + 32 KB BTCM (both ECC-protected) and 8 KB instruction/data caches for low-latency deterministic memory access - sufficient for most real-time servo control stacks without external SRAM.

Is the EtherCAT slave controller included in the R7S910011CBG#AC0?

Yes, the R7S910011CBG#AC0 includes the EtherCAT Slave Controller (ECATC) IP core licensed from Beckhoff Automation GmbH. It supports two ports and is enabled as a standard feature (not optional) for this part number, as indicated in Table 1.2 and Table 1.3 where "EtherCAT" is marked "Supported" for 320-pin variants with encoder interface - matching R7S910011CBG#AC0's configuration.

Which encoder protocols are supported by the R7S910011CBG#AC0?

The R7S910011CBG#AC0 supports EnDat 2.2, BiSS-C, FA-CODER, A-format, and HIPERFACE DSL-compliant encoder interfaces across its two optional channels. These are implemented in hardware per the RZ/T1 datasheet (page 1, Features section), and protocol selection is configured via register settings - no external transceivers or firmware protocol stacks are required for basic operation.

What is the operating temperature range for the R7S910011CBG#AC0?

The R7S910011CBG#AC0 is rated for a junction temperature range of −40°C to +125°C, as specified in the datasheet (page 8, Table 1.1). This rating applies to the PRBG0320GA-A FBGA package and is validated for continuous operation under full load, making it suitable for under-hood motor control, factory-floor drives, and other harsh industrial environments without thermal derating.