Renesas R5F56218BDFP#V0

Overview

R5F56218BDFP#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, 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 ADC (8 ch), dual 10-bit DAC, and TFT-LCD controller - deployed in industrial HMIs requiring real-time connectivity, deterministic timing, and embedded graphics.

For engineers reviewing the R5F56218BDFP#V0 datasheet, R5F56218BDFP#V0 pinout, R5F56218BDFP#V0 application, or R5F56218BDFP#V0 equivalent, key selection criteria include its LQFP100 package with 72 GPIOs (5 V tolerant), 100 MHz operation under 2.7–3.6 V supply, Deep Software Standby mode with RTC retention, and integrated Ethernet+USB+CAN for multi-protocol edge node designs.

Technical Context

The R5F56218BDFP#V0 implements the RXv1 CPU core with 5-stage CISC-Harvard pipeline, delivering 165 DMIPS at 100 MHz and supporting little-endian or big-endian data arrangement. It integrates a Memory Protection Unit (MPU) and background JTAG debug with high-speed trace capability for safety-critical firmware development.

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 subclock oscillator (32 kHz) drives the full-calendar RTC, while the dedicated 125 kHz LOCO powers both watchdog timers independently of main clock stability.

Key Specifications

Pinout & Package

LQFP100 package (PLQP0100KB-A) with 100 leads, 0.5 mm pitch, exposed pad not present; compatible with standard reflow profiles for industrial PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F562N8BDFP#V0, the R5F56218BDFP#V0 omits SDRAM/EXDMA to reduce silicon area and cost while retaining full Ethernet/USB/CAN connectivity; versus R5F56217BDFP#V0, it provides 128 KB additional flash and 32 KB more RAM for complex GUI stacks or protocol stacks with TLS.

Availability

R5F56218BDFP#V0 is available at Aetrix Electronics and suitable for industrial HMIs, factory automation gateways, medical infusion pump controllers, and building energy management nodes requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.

Supply support for R5F56218BDFP#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 industrial, automotive, and enterprise applications.

The RX621 Group targets cost-optimized industrial control and HMI applications, emphasizing integrated connectivity (Ethernet/USB/CAN), deterministic real-time performance, and low-power operation without external memory dependencies.

FAQ

What is the maximum operating frequency and CPU performance of the R5F56218BDFP#V0?

The R5F56218BDFP#V0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS using the 32-bit RXv1 CPU core. Its 5-stage pipeline, single-cycle 32×32 multiply, and IEEE-754-compliant FPU enable deterministic execution of real-time control algorithms. The R5F56218BDFP#V0 achieves this performance within a 2.7–3.6 V supply range and –40°C to +85°C ambient conditions.

Does the R5F56218BDFP#V0 support Ethernet and USB simultaneously?

Yes, the R5F56218BDFP#V0 integrates both a 10/100 Mbps Ethernet MAC (with MII/RMII interface) and a USB 2.0 Full-Speed host/function/OTG module. These operate independently: Ethernet uses dedicated DMA channels (EDMAC) with 2 KB TX/RX FIFOs, while USB employs its own 2 KB transfer buffer and UDC. The R5F56218BDFP#V0 can manage concurrent Ethernet packet forwarding and USB mass-storage device enumeration without CPU saturation.

What analog peripherals are included in the R5F56218BDFP#V0?

The R5F56218BDFP#V0 includes a 12-bit × 8-channel ADC with 1 µs conversion time at 50 MHz PCLK, two independent 10-bit DAC channels (0–VREFH output range), and hardware-accelerated CRC calculation for sensor data integrity. It supports sample-and-hold, scan mode, and trigger-based conversion from timers or external signals - all accessible via the R5F56218BDFP#V0's 72 GPIOs with analog input capability on pins AN0–AN7.

What low-power modes does the R5F56218BDFP#V0 offer, and how does RTC function in standby?

The R5F56218BDFP#V0 provides four low-power modes: Sleep, All-Module Clock Stop, Software Standby, and Deep Software Standby. In Deep Software Standby, the RTC continues operating using the 32 kHz subclock oscillator, retaining calendar time and generating alarm interrupts while consuming minimal current. The R5F56218BDFP#V0 maintains SRAM content and RTC registers during this mode, enabling rapid wake-up (<10 µs) upon alarm or external interrupt - critical for battery-backed industrial logging.

Is the R5F56218BDFP#V0 pin-compatible with other RX62x series MCUs in LQFP100 package?

The R5F56218BDFP#V0 shares the PLQP0100KB-A LQFP100 package and identical pin assignment with R5F562N8BDFP#V0, R5F562N7BDFP#V0, R5F56217BDFP#V0, and R5F56216BDFP#V0. However, functional differences exist: RX62N parts include SDRAM controller and EXDMA not present in RX621; RX621 variants omit CAN in 'A'-suffix parts. The R5F56218BDFP#V0 is fully pin-compatible with R5F56217BDFP#V0 and R5F56216BDFP#V0, enabling memory-scalable design reuse.