Renesas R5F56218BDFB#V0

Overview

R5F56218BDFB#V0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller with single-precision IEEE-754 FPU, 512 KB flash, 96 KB SRAM, and integrated Ethernet MAC (10/100 Mbps), USB 2.0 Full-Speed Host/Function/OTG, CAN 2.0B (1 channel, 32 mailboxes), 12-bit ADC (8 ch), dual 10-bit DAC, and TFT-LCD controller supporting WQVGA - deployed in industrial HMIs and networked embedded gateways.

For engineers reviewing the R5F56218BDFB#V0 datasheet, R5F56218BDFB#V0 pinout, R5F56218BDFB#V0 application, or R5F56218BDFB#V0 equivalent, key selection criteria include its LQFP144 package with 144 pins, 100 MHz real-time performance (165 DMIPS), Ethernet + USB + CAN triple connectivity, 5 V-tolerant GPIO (up to 128 pins), and support for Deep Software Standby mode with RTC retention.

Technical Context

The R5F56218BDFB#V0 implements the RXv1 CPU core with CISC-Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates a Memory Protection Unit (MPU) and supports both little-endian and big-endian data arrangement.

Its system clocking uses an external 8–14 MHz crystal feeding an internal PLL to generate ICLK (up to 100 MHz), PCLK (up to 50 MHz), and BCLK (up to 50 MHz). The MCU includes dual watchdog timers (WDT and IWDT), independent subclock oscillator (32 kHz) for RTC, and low-voltage detection (LVD) with programmable threshold.

Key Specifications

Pinout & Package

LQFP144 package (PLQP0144KA-A), 20 mm × 20 mm, 0.5 mm pitch, 144-pin quad flat pack with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F562N8BDFB#V0, the R5F56218BDFB#V0 omits SDRAM and EXDMA to reduce cost and complexity for self-contained HMI/gateway roles; versus R5F566TEBDFB#V0, it retains integrated Ethernet and CAN essential for fieldbus convergence but trades peak CPU performance for proven industrial reliability and toolchain maturity.

Availability

R5F56218BDFB#V0 is available at Aetrix Electronics and suitable for industrial HMIs, smart gateways, and networked PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and full industrial temperature grade (–40°C to +85°C).

Supply support for R5F56218BDFB#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 - including R5F56218BDFB#V0 - was engineered for high-integration industrial control applications demanding real-time Ethernet, USB, CAN, and rich analog/motor control peripherals in a single chip.

FAQ

What is the maximum operating frequency and CPU performance of the R5F56218BDFB#V0?

The R5F56218BDFB#V0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS of processing performance using the 32-bit RXv1 CPU core. Its single-precision IEEE-754 floating-point unit enables efficient real-time math operations without software emulation, making it suitable for motion control and sensor fusion tasks within the R5F56218BDFB#V0's integrated peripheral ecosystem.

Does the R5F56218BDFB#V0 support Ethernet connectivity, and what interface options are available?

Yes, the R5F56218BDFB#V0 integrates a full-featured Ethernet MAC supporting both 10 and 100 Mbps operation in half- or full-duplex mode. It provides both MII and RMII physical layer interfaces, with dedicated 2 KB transmit and receive FIFOs and descriptor-based DMA (EDMAC) to minimize CPU overhead. This capability is confirmed in the R5F56218BDFB#V0 datasheet Section 1.1 and Figure 1.2 block diagram.

What analog peripherals are included in the R5F56218BDFB#V0, and how are they configured?

The R5F56218BDFB#V0 includes a configurable 12-bit × 8-channel ADC (with sample-and-hold) or two independent 10-bit × 4-channel ADC units - mutually exclusive modes selected at initialization. It also features two 10-bit DAC channels with 0–VREFH output range. These analog resources are documented in Tables 1.1 and 1.2 of the R5F56218BDFB#V0 datasheet and support hardware-triggered conversions via MTU2 timers.

What package type and pin count does the R5F56218BDFB#V0 use, and is it RoHS compliant?

The R5F56218BDFB#V0 uses a 144-pin LQFP package (PLQP0144KA-A), measuring 20 mm × 20 mm with 0.5 mm pitch. It is RoHS compliant and rated for industrial temperature operation (–40°C to +85°C). Pin assignments and mechanical dimensions are specified in Figures 1.5–1.6 and Table 1.3 of the R5F56218BDFB#V0 datasheet.

How does the R5F56218BDFB#V0 handle low-power operation, and what modes are supported?

The R5F56218BDFB#V0 supports four low-power modes: Sleep, All-Module Clock Stop, Software Standby, and Deep Software Standby with RTC active. In Run Mode, it consumes 480 µA/MHz with all peripherals enabled. Deep Software Standby retains SRAM and RTC operation while stopping CPU and most clocks - critical for battery-backed applications. These capabilities are detailed in Section 1.1 "Low Power Design" of the R5F56218BDFB#V0 datasheet.