Renesas R7S910018CBG#AC0

Overview

R7S910018CBG#AC0 from Renesas Electronics is a high-performance real-time industrial MCU featuring dual Arm® Cortex®-R4 (600 MHz) and Cortex-M3 (150 MHz) processors, 1 Mbyte on-chip extended SRAM with ECC, EtherCAT slave controller (2-port), and integrated safety functions including CRC, IWDTa, and error control module (ECM). It targets deterministic motion control systems requiring sub-microsecond jitter, such as servo drives and PLCs.

For engineers reviewing the R7S910018CBG#AC0 datasheet, R7S910018CBG#AC0 pinout, R7S910018CBG#AC0 application, or R7S910018CBG#AC0 equivalent, this page delivers verified technical context, package-specific pin mapping, safety-critical timing parameters, encoder interface compatibility (EnDat 2.2/BiSS-C), and validated alternative options for industrial automation design-in.

Technical Context

The R7S910018CBG#AC0 implements a tightly coupled dual-core architecture: the Cortex-R4 core operates at up to 600 MHz with 8 KB instruction/data caches (ECC-protected), 512 KB ATCM + 32 KB BTCM (ECC), and hardware FPU supporting single/double-precision operations; the Cortex-M3 core runs at 150 MHz and manages R-IN engine tasks including real-time Ethernet protocol offload. Both cores share access to the event link controller (ELC), enabling interrupt-free inter-module triggering during sleep states.

Its peripheral set is optimized for deterministic industrial I/O: dual CAN (1 Mbps), 2-channel EnDat 2.2/BiSS-C encoder interfaces, 12-bit A/D converters (unit 0: 8 channels @ 0.483 µs/ch; unit 1: 16 channels @ 0.883 µs/ch), and MTU3a/GPTa timers with dead-time compensation for 3-phase inverter control. The device supports IEEE 1588 timestamping via Ethernet MAC and includes register write protection, input clock oscillation detection, and dual watchdogs (WDTA + IWDTa).

Key Specifications

Pinout & Package

Package: 320-pin Fine-Pitch Ball Grid Array (FBGA), PRBG0320GA-A, 17 mm × 17 mm, 0.8 mm pitch, with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7S910017CBG#AC0 and R7S910013CBG#AC0, the R7S910018CBG#AC0 uniquely combines 600 MHz deterministic execution, integrated EtherCAT slave, and dual-channel EnDat/BiSS-C - making it the only option for compact, self-contained servo drives requiring sub-microsecond jitter and absolute encoder support.

Availability

R7S910018CBG#AC0 is available at Aetrix Electronics and suitable for servo drive development, EtherCAT-based PLC modules, industrial robot joint controllers, and real-time HMI gateways requiring stable component supply across multi-year production cycles.

Supply support for R7S910018CBG#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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets, with over 40 years of embedded systems leadership.

The RZ/T1 Group, including R7S910018CBG#AC0, was designed specifically for deterministic real-time industrial automation - integrating EtherCAT, safety mechanisms, and encoder interfaces into a single chip to eliminate external co-processors and reduce system-level jitter.

FAQ

What is the maximum operating frequency of the R7S910018CBG#AC0 Cortex-R4 core?

The R7S910018CBG#AC0 Cortex-R4 core operates at a maximum frequency of 600 MHz, delivering 996 DMIPS performance. This frequency is validated under industrial temperature conditions (−40°C to +125°C junction) with proper power sequencing and thermal management per Renesas Hardware Manual R01UH0497EJ0200. The R7S910018CBG#AC0 achieves this speed using its on-chip PLL with external 25 MHz crystal input.

Does the R7S910018CBG#AC0 include an EtherCAT slave controller, and what version is supported?

Yes, the R7S910018CBG#AC0 integrates a Beckhoff-certified EtherCAT Slave Controller (ECATC) IP core supporting EtherCAT specification version 1.2.2, including full distributed clock (DC) synchronization, mailbox communication, and process data object (PDO) handling. The R7S910018CBG#AC0 implements two physical ports (ECAT0/ECAT1) and complies with IEC 61158 Type 12.

What encoder protocols are supported by the R7S910018CBG#AC0, and how many channels are available?

The R7S910018CBG#AC0 supports EnDat 2.2, BiSS-C, FA-CODER, A-format, and HIPERFACE DSL protocols across two independent encoder interface channels. Each channel is configurable via registers to select protocol, resolution, and clock rate - enabling simultaneous connection to two absolute encoders with different vendor implementations.

What safety certifications apply to the R7S910018CBG#AC0, and which features support them?

The R7S910018CBG#AC0 incorporates hardware safety features aligned with IEC 61508 SIL2 and ISO 13849 PL e requirements, including register write protection, input clock oscillation detection, CRC calculator (32/16/8-bit), dual watchdogs (WDTA + IWDTa), and error control module (ECM) with redundant checker logic. These are documented in Renesas Functional Safety Manual R01UH0500EJ0100 for the RZ/T1 Group.

Is the R7S910018CBG#AC0 pin-compatible with other RZ/T1 family members in the same package?

No, the R7S910018CBG#AC0 is not fully pin-compatible with other RZ/T1 variants in the PRBG0320GA-A package. While power, ground, and basic I/O pins align, function-specific pins (e.g., ECAT0_CLKIN, ENCA0_A) differ between models - for example, R7S910017CBG#AC0 lacks EtherCAT and encoder interface pins entirely. Board layout must be designed specifically for R7S910018CBG#AC0.