Renesas R5F56218BDLD#U0

Overview

R5F56218BDLD#U0 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 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 ADC (8 ch), dual 10-bit DAC, TFT-LCD controller, RTC, and up to 103 GPIO - designed for industrial HMI, networked gateways, and embedded control requiring real-time connectivity and deterministic timing.

For engineers reviewing the R5F56218BDLD#U0 datasheet, R5F56218BDLD#U0 pinout, R5F56218BDLD#U0 application, or R5F56218BDLD#U0 equivalent, key selection criteria include its TFLGA85 package (85-pin, 7×7 mm, 0.65 mm pitch), absence of SDRAM/EXDMA support (per RX621 Group spec), 100 MHz operation at 2.7–3.6 V, and full peripheral set excluding I²C channel 2 and second USB port - critical for layout, power, and interface compatibility verification.

Technical Context

The R5F56218BDLD#U0 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. Its memory subsystem includes zero-wait-state 512 KB flash (10 ns read cycle), 96 KB SRAM with back-up retention in Deep Software Standby Mode, and 32 KB data flash rated for 30K erase cycles with background erase/program capability.

System-level features include dual watchdog timers (8-bit WDT + 14-bit IWDT), independent subclock RTC with BCD calendar, four low-power modes (Sleep, All-module clock stop, Software Standby, Deep Software Standby), and clock generation via external 8–14 MHz crystal + PLL (system clock up to 100 MHz) plus 32 kHz crystal for RTC and 125 kHz LOCO for IWDT.

Key Specifications

Pinout & Package

TFLGA85 package: 85-pin, 7 mm × 7 mm body, 0.65 mm pitch, 0.8 mm height, lead-free, moisture-sensitive level 3. Pin functions validated per Renesas R01DS0052EJ0140 Rev.1.40 Figure 1.7 and Table 1.7 for R5F56218BDLD.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56218BDFP#V0, the R5F56218BDLD#U0 provides identical core performance and peripheral set in a smaller 7×7 mm TFLGA package with integrated TFT-LCD support - ideal for compact HMI. Versus R5F562N8BDLE#U0, it trades SDRAM/EXDMA capability for reduced pin count and lower system complexity where those features are unnecessary.

Availability

R5F56218BDLD#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy gateways, and networked PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F56218BDLD#U0 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 control and connectivity applications, emphasizing integration of Ethernet, USB, CAN, and human-machine interface peripherals in compact packages like TFLGA85.

FAQ

What is the maximum operating frequency and CPU performance of the R5F56218BDLD#U0?

The R5F56218BDLD#U0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS using the 32-bit RXv1 CPU core. Its single-precision IEEE-754 floating-point unit enables efficient real-time computation, and the 5-stage pipeline with variable-length instructions ensures high code density and deterministic execution timing - all confirmed in Renesas document R01DS0052EJ0140.

Does the R5F56218BDLD#U0 support Ethernet and USB simultaneously?

Yes, the R5F56218BDLD#U0 integrates both Ethernet MAC (10/100 Mbps, RMII/MII) and USB 2.0 Full-Speed (1 port, Host/Function/OTG) on-chip. They operate independently with dedicated DMA channels - Ethernet uses EDMAC with 2 KB TX/RX FIFOs, while USB uses internal 2 KB transfer buffer. This enables concurrent network and host/device communication without resource contention, as specified in the RX621 Group datasheet.

What are the memory resources available on the R5F56218BDLD#U0?

The R5F56218BDLD#U0 includes 512 KB of on-chip flash memory (zero wait states at 100 MHz), 96 KB of SRAM (with back-up retention in Deep Software Standby Mode), and 32 KB of data flash rated for 30,000 erase cycles. Background erase/program capability allows firmware updates without halting application execution - a key feature verified in Section 1.1 of R01DS0052EJ0140.

Which package type and pin count does the R5F56218BDLD#U0 use?

The R5F56218BDLD#U0 uses the TFLGA85 package: 85-pin, 7 mm × 7 mm body, 0.65 mm pitch, and 0.8 mm height. This RoHS-compliant, moisture-sensitive level 3 package is documented in Renesas R01DS0052EJ0140 Table 1.3 and Figure 1.7, and supports 103 GPIO - fewer than LFBGA176 but optimized for compact industrial HMI designs.

Does the R5F56218BDLD#U0 include CAN and analog peripherals?

Yes, the R5F56218BDLD#U0 integrates one CAN 2.0B module with 32 mailboxes, a 12-bit ADC with 8 input channels (1 µs conversion time at 50 MHz PCLK), and two independent 10-bit DAC channels. These are fully functional in the TFLGA85 variant per RX621 Group specifications - unlike SDRAM or EXDMA, which are excluded from this package family as noted in Table 1.2 of R01DS0052EJ0140.