Renesas R5F56217BDFB#V0

Overview

R5F56217BDFB#V0 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 100 MHz, delivering 165 DMIPS with single-precision IEEE-754 floating-point unit, 384 KB on-chip flash, 64 KB SRAM, and 32 KB data flash. It integrates 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, TFT-LCD controller (WQVGA), RTC, and 14 communication interfaces - deployed in industrial gateways requiring real-time connectivity and deterministic control.

For engineers reviewing the R5F56217BDFB#V0 datasheet, R5F56217BDFB#V0 pinout, R5F56217BDFB#V0 application, or R5F56217BDFB#V0 equivalent, key selection criteria include its LQFP144 package with 144 pins, 100 MHz operation under 2.7–3.6 V supply, support for RMII/MII Ethernet PHY interface, dual USB ports (one active in this variant), and absence of SDRAM controller and EXDMA - critical for embedded networking and HMI designs.

Technical Context

The R5F56217BDFB#V0 implements the 32-bit RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It features memory protection unit (MPU), background JTAG debug, and high-speed trace capability for safety-critical firmware development.

Its clock system includes dual oscillators (8–14 MHz main crystal, 32 kHz subclock), internal PLL generating ICLK up to 100 MHz, PCLK up to 50 MHz, and BCLK up to 50 MHz - with independent division/multiplication per domain. The MCU supports four low-power modes including Deep Software Standby with RTC retention and 480 µA/MHz Run Mode.

Key Specifications

Pinout & Package

LQFP144 package (PLQP0144KA-A), 20 × 20 mm body, 0.5 mm pitch, 144 leads, exposed pad not specified. Pin functions validated per Renesas R01DS0052EJ0140 Rev.1.40 Figure 1.5 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 R5F562N7BDFB#V0, the R5F56217BDFB#V0 omits SDRAM and EXDMA to reduce complexity and cost while retaining full Ethernet, USB, CAN, and TFT-LCD capability - making it optimal for mid-tier industrial HMI and gateway designs. Versus R5F56217BDFP#V0, it adds 44 pins, Ethernet, CAN, second I²C, and dual USB - justifying the LQFP144 footprint for connected edge applications.

Availability

R5F56217BDFB#V0 is available at Aetrix Electronics and suitable for industrial gateways, human-machine interfaces, energy metering systems, and factory automation controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for R5F56217BDFB#V0 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 cost-optimized industrial and consumer applications requiring rich connectivity (Ethernet, USB, CAN), graphics capability (TFT-LCD), and real-time performance - with R5F56217BDFB#V0 delivering balanced features in LQFP144 form factor.

FAQ

What is the maximum operating frequency and core architecture of the R5F56217BDFB#V0?

The R5F56217BDFB#V0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 165 DMIPS and includes a single-precision IEEE-754 floating-point unit, accumulator, and memory protection unit - optimized for deterministic real-time embedded applications.

Does the R5F56217BDFB#V0 support Ethernet and what interface options are available?

Yes, the R5F56217BDFB#V0 integrates a full Ethernet MAC supporting both 10/100 Mbps speeds in half- or full-duplex mode. It provides MII and RMII interface options for connection to external PHYs, with dedicated 2 KB transmit and receive FIFOs, and supports Magic Packet™ wake-on-LAN functionality - all confirmed in the R01DS0052EJ0140 datasheet Section 1.1.

What are the ADC and DAC capabilities of the R5F56217BDFB#V0?

The R5F56217BDFB#V0 includes a configurable analog subsystem: either one 12-bit × 8-channel ADC with single sample-and-hold circuit or two independent 10-bit × 4-channel ADC units - selectable at initialization. It also features two 10-bit DAC channels with output range 0 V to VREFH, enabling analog waveform generation and sensor calibration reference outputs.

Which package type and pin count does the R5F56217BDFB#V0 use?

The R5F56217BDFB#V0 uses the PLQP0144KA-A package: a 144-pin LQFP with 20 × 20 mm body size and 0.5 mm lead pitch. This package provides full access to all integrated peripherals including Ethernet, USB, CAN, TFT-LCD, and 103 GPIO - as verified in Renesas document R01DS0052EJ0140 Table 1.3 and Figure 1.5.

Is the R5F56217BDFB#V0 pin-compatible with other members of the RX621 Group?

Yes, the R5F56217BDFB#V0 shares identical pinout and package (LQFP144) with other RX621 Group variants in the same package option - including R5F56218BDFB#V0 and R5F56216BDFB#V0 - enabling drop-in replacement for different flash/RAM configurations without PCB redesign, as confirmed in Renesas R01DS0052EJ0140 Table 1.2 and Figure 1.1.