Renesas R5F56217BDLD#U0

Overview

R5F56217BDLD#U0 from Renesas is a 32-bit RX CPU-based microcontroller delivering 165 DMIPS at 100 MHz, featuring single-precision IEEE-754 FPU, 384 KB on-chip flash, 64 KB SRAM, 32 KB data flash, and integrated peripherals including USB 2.0 Full-Speed (host/function/OTG), CAN 2.0B (1 channel), 10-bit dual-channel DAC, 12-bit 8-channel ADC, Ethernet MAC (10/100 Mbps), and TFT-LCD controller - deployed in industrial HMI and networked embedded control systems.

For engineers reviewing the R5F56217BDLD#U0 datasheet, R5F56217BDLD#U0 pinout, R5F56217BDLD#U0 application, or R5F56217BDLD#U0 equivalent, key selection criteria include its TFLGA85 package (85-pin, 7×7 mm, 0.65 mm pitch), -40°C to +85°C operation, 2.7–3.6 V supply, absence of SDRAM/EXDMA support, and exclusion of Ethernet and port-output-enable functionality per RX621 group specifications.

Technical Context

The R5F56217BDLD#U0 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 little-endian or big-endian data arrangement, with floating-point and DSP instruction extensions compliant to IEEE-754.

Its clock system combines an external 8–14 MHz crystal with internal PLL for 100 MHz ICLK, plus dedicated 32 kHz subclock for RTC and 125 kHz LOCO for IWDT. Reset sources include POR, LVD, watchdog, and deep software standby reset - all managed via hardware monitoring circuits without software intervention.

Key Specifications

Pinout & Package

TFLGA85 package: 85-pin, 7 mm × 7 mm body, 0.65 mm pitch, exposed thermal pad, RoHS-compliant. Pin functions validated per Renesas R01DS0052EJ0140 Figure 1.7 and Table 1.7 for R5F56217BDLD variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56217BDLE#U0 and R5F562N7BDLE#U0, the R5F56217BDLD#U0 provides optimal integration for compact, cost-sensitive HMI and CAN-based control nodes where SDRAM, Ethernet, or extra CAN are unnecessary - reducing PCB layer count and thermal footprint.

Availability

R5F56217BDLD#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, networked PLC I/O modules, USB-capable test equipment, and smart energy meters requiring stable component supply across multi-year production cycles.

Supply support for R5F56217BDLD#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, high-integration embedded control applications - emphasizing low-power operation, rich analog/mixed-signal capability, and USB/CAN connectivity without Ethernet overhead.

FAQ

What is the maximum operating frequency and CPU performance of the R5F56217BDLD#U0?

The R5F56217BDLD#U0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS of processing performance using the 32-bit RXv1 CPU core. Its single-cycle 32×32 multiply and IEEE-754 floating-point unit enable deterministic real-time computation, making the R5F56217BDLD#U0 suitable for motor control and sensor fusion tasks where cycle-accurate timing is essential.

Does the R5F56217BDLD#U0 support Ethernet or SDRAM interfaces?

No, the R5F56217BDLD#U0 does not support Ethernet MAC or SDRAM interfaces. As confirmed in Renesas R01DS0052EJ0140 Table 1.2, the RX621 Group - including the R5F56217BDLD#U0 - excludes both Ethernet controller and SDRAM area controller. These features are present only in the RX62N Group, so designs requiring Ethernet must select an alternative such as R5F562N7BDLE#U0 instead of the R5F56217BDLD#U0.

What analog peripherals are integrated into the R5F56217BDLD#U0?

The R5F56217BDLD#U0 integrates a 12-bit 8-channel ADC with 1 µs conversion time at 50 MHz PCLK, two independent 10-bit DAC channels (DA0/DA1), and a 32 KB data flash with 30,000 erase cycles for calibration storage. These analog resources are fully accessible in the TFLGA85 package, and the R5F56217BDLD#U0 supports sample-and-hold, scan mode, and external trigger-started conversions - enabling precise sensor signal conditioning without external components.

Which USB modes does the R5F56217BDLD#U0 support, and what is required for OTG operation?

The R5F56217BDLD#U0 supports USB 2.0 Full-Speed host, function, and OTG modes via its integrated transceiver and UDC. For OTG operation, the R5F56217BDLD#U0 requires external ID pin detection circuitry and VBUS sensing, as specified in Section 22.3 of the R01DS0052EJ0140 datasheet. The R5F56217BDLD#U0 implements the necessary protocol stack in firmware and uses its single USB port (USB0_DP/DM) - no second port or external PHY is needed.

What are the power supply requirements and low-power capabilities of the R5F56217BDLD#U0?

The R5F56217BDLD#U0 operates from a single 2.7 V to 3.6 V supply, consuming 480 µA/MHz in Run Mode with all peripherals active. It supports four low-power modes, including Deep Software Standby with RTC running and SRAM retention at sub-µA levels. This makes the R5F56217BDLD#U0 ideal for battery-backed applications like smart meters and portable diagnostics tools where long-term energy efficiency is critical.