Renesas R7S910028CBG#AC0

Overview

R7S910028CBG#AC0 from Renesas Electronics is a high-performance industrial real-time 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), dual CAN 2.0B interfaces, and integrated safety functions including CRC, IWDTa, and error control module - deployed in servo drives and motion controllers requiring deterministic low-latency response.

For engineers reviewing the R7S910028CBG#AC0 datasheet, R7S910028CBG#AC0 pinout, R7S910028CBG#AC0 application, or R7S910028CBG#AC0 equivalent, this page delivers verified specifications, package mapping to PRBG0320GA-A FBGA, validated alternative parts for industrial automation, and precise functional boundaries per Renesas R01DS0228EJ0200 Rev.2.00.

Technical Context

The R7S910028CBG#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 FPU supporting single/double-precision arithmetic; the Cortex-M3 co-processor runs at 150 MHz and manages R-IN engine tasks including encoder interface protocol handling and real-time I/O coordination.

Its real-time subsystem includes event link controller (ELC) enabling hardware-triggered module operation without CPU wake-up, 33 timers (TPUa/MTU3a/GPTa/CMT/CMTW) with PWM, capture/compare, and dead-time generation, and dual-channel EnDat 2.2/BiSS-C encoder interfaces - all operating under -40°C to +125°C junction temperature with 1.2 V core / 3.3 V I/O dual-rail power.

Key Specifications

Pinout & Package

320-pin Fine-Pitch Ball Grid Array (FBGA) package designated PRBG0320GA-A, measuring 17 mm × 17 mm with 0.8 mm ball pitch, designed for high-density industrial control board layouts and thermal dissipation via 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 R7S910028CBG#AC0, R7S910013CBG#AC0 removes EtherCAT functionality while retaining full motion timer and safety features, whereas R7S910007CBG#AC0 eliminates encoder interfaces but keeps all other peripherals - both offer lower unit cost but require external components or protocol translation for EtherCAT or absolute encoder use cases.

Availability

R7S910028CBG#AC0 is available at Aetrix Electronics and suitable for servo drives, industrial PLC I/O modules, packaging machinery motion controllers, and robot joint controllers requiring stable component supply across long production lifecycles.

Supply support for R7S910028CBG#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.

The RZ/T1 Group, including R7S910028CBG#AC0, was designed specifically for deterministic real-time industrial automation - integrating EtherCAT, encoder interfaces, and functional safety features into a single chip to replace multi-IC control architectures.

FAQ

What is the maximum operating frequency of the R7S910028CBG#AC0?

The R7S910028CBG#AC0 operates at a maximum CPU clock frequency of 600 MHz for the Arm Cortex-R4 core and 150 MHz for the Cortex-M3 co-processor, as confirmed in Table 1.1 of Renesas document R01DS0228EJ0200 Rev.2.00. This frequency is supported only in 320-pin FBGA packages such as PRBG0320GA-A, and requires proper power delivery and thermal management to sustain continuous operation.

Does the R7S910028CBG#AC0 include an EtherCAT slave controller?

Yes, the R7S910028CBG#AC0 integrates a Beckhoff-certified EtherCAT slave controller supporting two ports, as explicitly listed in Table 1.3 (List of Products) and detailed in Section 1.1 of R01DS0228EJ0200 Rev.2.00. This hardware block enables direct implementation of EtherCAT slave nodes without external ASICs or FPGAs, and supports distributed clock synchronization per ETG.1000.

Which encoder protocols does the R7S910028CBG#AC0 support?

The R7S910028CBG#AC0 supports EnDat 2.2, BiSS-C, FA-CODER, A-format, and HIPERFACE DSL-compliant interfaces across its two dedicated encoder channels, as specified in the "Encoder interfaces (optional)" section of the datasheet and confirmed in Table 1.2 for 320-pin devices. These protocols are implemented in hardware and do not require software emulation.

What safety features are built into the R7S910028CBG#AC0?

The R7S910028CBG#AC0 includes register write protection, input clock oscillation stop detection, CRC calculator (with four polynomials), independent watchdog timer (IWDTa), and an error control module (ECM) that can assert a pin signal, generate interrupt, or trigger internal reset. These features are documented in the "Safety functions" section of R01DS0228EJ0200 Rev.2.00 and support IEC 61508 SIL2 development.

What is the on-chip memory configuration of the R7S910028CBG#AC0?

The R7S910028CBG#AC0 includes 512 KB ATCM and 32 KB BTCM (both with ECC), 8 KB instruction cache and 8 KB data cache (both with ECC), and 1 Mbyte of on-chip extended SRAM with SEC-DED ECC. All memory blocks operate at 150 MHz and are accessible by both Cortex-R4 and Cortex-M3 cores, as defined in Table 1.1 of R01DS0228EJ0200 Rev.2.00.