Renesas R7S910028CBA#BC0

Overview

R7S910028CBA#BC0 from Renesas Electronics is a high-performance real-time MCU featuring an Arm® Cortex-R4 processor core (r1p4) operating at up to 450 MHz, delivering 747 DMIPS, with 1 Mbyte of on-chip extended SRAM with ECC, dual CAN interfaces compliant with ISO11898-1, and integrated Ethernet MAC supporting 10/100BASE-TX for industrial motion control systems.

For engineers reviewing the R7S910028CBA#BC0 datasheet, R7S910028CBA#BC0 pinout, R7S910028CBA#BC0 application, or R7S910028CBA#BC0 equivalent, key selection considerations include its 450 MHz Cortex-R4 execution speed, 1 Mbyte ECC-protected SRAM, dual CAN 2.0B support, EtherCAT slave controller option, and 320-pin FBGA package with 17 × 17 mm footprint and 0.8-mm pitch.

Technical Context

The R7S910028CBA#BC0 implements a dual-core architecture with a primary Arm Cortex-R4 core (r1p4) running at 450 MHz and optional Cortex-M3 co-processor (r2p1) at 150 MHz in R-IN engine variants - though this specific part does not incorporate the R-IN engine per Table 1.3. It integrates tightly coupled memory (512 KB ATCM + 32 KB BTCM), instruction/data caches (8 KB each with ECC), and supports Arm v7-R instruction set with Thumb-2 and little-endian data layout.

Real-time determinism is enforced via hardware features including event link controller (ELC) for interrupt-free module chaining, multiple timer units (TPUa, MTU3a, GPTa) supporting PWM generation, encoder interface triggers, and A/D conversion synchronization, all operating under safety-critical constraints validated by register write protection, CRC calculator, IWDTa, and error control module (ECM).

Key Specifications

Pinout & Package

Package: PRBG0320GB-A, 320-pin Fine-Pitch Ball Grid Array (FBGA), 17 mm × 17 mm body, 0.8 mm ball pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7S910028CBA#BC0, R7S910006CBA offers identical real-time performance without EtherCAT, while R7S910007CBA trades higher thermal/power demands for 33% more DMIPS - making R7S910028CBA#BC0 the optimal balance of EtherCAT readiness, thermal efficiency, and proven 450 MHz determinism for servo-class applications.

Availability

R7S910028CBA#BC0 is available at Aetrix Electronics and suitable for industrial servo drives, programmable logic controllers (PLCs), robot joint controllers, and high-speed motion coordinators requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.

Supply support for R7S910028CBA#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 is a global semiconductor leader specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and infrastructure markets.

The RZ/T1 Group, including R7S910028CBA#BC0, is engineered for hard real-time industrial automation - integrating Arm Cortex-R4 performance, safety mechanisms, and industrial protocol accelerators to replace FPGA+MCU combinations in motion control.

FAQ

What is the maximum operating frequency of the R7S910028CBA#BC0?

The R7S910028CBA#BC0 operates at a maximum CPU frequency of 450 MHz, delivering 747 DMIPS performance. This speed is achieved using the Arm Cortex-R4 core with integrated instruction and data caches (8 KB each, with ECC), and is supported by the on-chip PLL locked to a 25 MHz external clock input. The R7S910028CBA#BC0 does not support the 600 MHz variant found in other RZ/T1 family members like R7S910007CBA.

Does the R7S910028CBA#BC0 include EtherCAT slave functionality?

Yes, the R7S910028CBA#BC0 includes the EtherCAT Slave Controller (ECATC) IP core licensed from Beckhoff Automation GmbH, supporting two ports. This capability is explicitly confirmed in Table 1.3 of the R01DS0228EJ0200 datasheet for part numbers ending in "028", distinguishing it from non-EtherCAT variants such as R7S910006CBA. The ECATC operates alongside the integrated Ethernet MAC and requires no external PHY for basic implementation.

What package type and pin count does the R7S910028CBA#BC0 use?

The R7S910028CBA#BC0 uses the PRBG0320GB-A package: a 320-pin Fine-Pitch Ball Grid Array with 17 mm × 17 mm body size and 0.8 mm ball pitch. This package is identical to those used by other 320-pin RZ/T1 devices (e.g., R7S910002CBA, R7S910006CBA) and supports full I/O availability including 209 general-purpose pins, 5-V tolerant inputs, and dedicated high-speed interface routing for Ethernet, CAN, and USB.

How much on-chip SRAM does the R7S910028CBA#BC0 provide, and what protection does it include?

The R7S910028CBA#BC0 integrates 1 Mbyte of on-chip extended SRAM with full SEC-DED (Single Error Correction, Double Error Detection) ECC protection. This memory operates at 150 MHz and is accessible by both the Cortex-R4 core and DMA controllers. ECC coverage applies across the entire 1 Mbyte region, ensuring data integrity for safety-critical runtime variables, control algorithm state, and communication buffers - a requirement for IEC 61508 SIL2 and ISO 13849 PL e certification paths.

Which communication interfaces are supported by the R7S910028CBA#BC0?

The R7S910028CBA#BC0 supports dual CAN 2.0B interfaces (up to 1 Mbps), one Ethernet MAC port (10/100BASE-TX with MII/RMII), one USB 2.0 high-speed host/function controller, five SCIFA serial channels, two I²C interfaces (400 kbps), four RSPIa SPI channels, one SPIBSC multi-I/O flash controller, and one serial sound interface (SSI). All interfaces are directly managed by dedicated on-chip peripherals without external glue logic.