Renesas R5F56217BDBG#U0

Overview

R5F56217BDBG from Renesas is a 32-bit RX CPU-based microcontroller delivering 165 DMIPS at 100 MHz, featuring single-precision IEEE-754 FPU, 384 KB flash, 64 KB SRAM, 32 KB data flash, Ethernet MAC (10/100 Mbps), USB 2.0 Full-Speed Host/Function/OTG, CAN 2.0B (1 channel, 32 mailboxes), 12-bit × 8-channel ADC, dual 10-bit DACs, and TFT-LCD controller - deployed in industrial HMIs and networked embedded gateways.

For engineers reviewing the R5F56217BDBG datasheet, R5F56217BDBG pinout, R5F56217BDBG application, or R5F56217BDBG equivalent, key selection criteria include its LFBGA176 package, 100 MHz operation with no flash wait states, integrated Ethernet+USB+CAN connectivity, low-power Deep Software Standby mode with RTC retention, and support for real-time deterministic control via MPU and 5-cycle interrupt response.

Technical Context

The R5F56217BDBG implements a CISC-Harvard architecture with 5-stage pipeline, variable-length instructions, and memory protection unit (MPU) for secure real-time execution. It integrates dual DMA controllers (DMACA + EXDMAC), Data Transfer Controller (DTC), and dedicated Ethernet DMA with 2 KB TX/RX FIFOs.

Its clock system supports external 8–14 MHz crystal + PLL for 100 MHz ICLK, independent PCLK (≤50 MHz) and BCLK (≤50 MHz) domains, subclock oscillator (32 kHz) for RTC, and LOCO (125 kHz) for IWDT. The MCU supports little-endian or big-endian data arrangement and includes background JTAG debug with high-speed trace.

Key Specifications

Pinout & Package

LFBGA176 package (PLBG0176GA-A), 13 mm × 13 mm, 0.8 mm pitch, 176-ball array with exposed thermal pad. Pin functions validated per Renesas R01DS0052EJ0140 Figure 1.3 and Table 1.4–1.8.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56217BDBG, R5F562N7BDBG adds SDRAM and EXDMA support for high-bandwidth display or data acquisition, while R5F56217BDLE offers identical functionality in a smaller TFLGA package-enabling design reuse across form factors without firmware changes.

Availability

R5F56217BDBG is available at Aetrix Electronics and suitable for industrial HMIs, smart gateways, networked PLC I/O modules, and energy metering nodes requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F56217BDBG 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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX621 Group targets high-performance industrial control applications, combining real-time determinism, rich connectivity (Ethernet/USB/CAN), and integrated analog peripherals to replace multi-chip solutions in HMIs, gateways, and intelligent sensors.

FAQ

What is the maximum operating frequency and core performance of the R5F56217BDBG?

The R5F56217BDBG operates at a maximum frequency of 100 MHz and delivers 165 DMIPS using its 32-bit RX CPU core. It includes a single-precision IEEE-754 floating-point unit, 32×32 multiply-to-64-bit accumulator, and 5-cycle minimum interrupt response - enabling deterministic real-time control in applications such as motor drives and industrial HMIs where the R5F56217BDBG serves as the primary application processor.

Does the R5F56217BDBG support Ethernet connectivity, and what interface modes are available?

Yes, the R5F56217BDBG integrates a full Ethernet MAC supporting both 10/100 Mbps speeds in half- or full-duplex mode. It supports MII and RMII physical layer interfaces, with dedicated 2 KB transmit and receive FIFOs plus descriptor-based DMA to offload packet processing. The R5F56217BDBG also includes Magic Packet™ wake-on-LAN and IEEE 802.3x flow control compliance - making it suitable for industrial networking applications where the R5F56217BDBG acts as an embedded Ethernet node.

What analog capabilities does the R5F56217BDBG provide, and how are they configured?

The R5F56217BDBG features a 12-bit × 8-channel ADC with 1.0 µs conversion time per channel at 50 MHz PCLK, plus two independent 10-bit DACs. It supports either one 12-bit unit (8 channels) or two 10-bit units (4 channels each), with sample-and-hold, scan mode, and trigger sources including MTU/TMR timers and external signals. These analog resources allow the R5F56217BDBG to perform precision sensor interfacing and closed-loop control without external signal conditioning ICs.

How does the R5F56217BDBG handle low-power operation in battery-backed applications?

The R5F56217BDBG supports four low-power modes, including Deep Software Standby with RTC retention - maintaining calendar time and wake-up capability while drawing minimal current from backup power. Its 2.7–3.6 V operation, 480 µA/MHz Run Mode, and dedicated 125 kHz LOCO clock for the independent watchdog timer enable robust operation in energy-sensitive applications such as portable HMIs or remote monitoring nodes where the R5F56217BDBG must sustain functionality over extended periods between charges.

What development tools and debug interfaces are supported by the R5F56217BDBG?

The R5F56217BDBG supports background JTAG debugging with high-speed trace, two breakpoint channels, and non-maskable interrupt (NMI) pin support. It is compatible with Renesas E2 emulator and CS+ IDE, and programming is possible via USB, SCI, JTAG, or user code. These capabilities streamline firmware development and validation for complex applications where the R5F56217BDBG serves as the central controller in safety-critical or time-sensitive embedded systems.