Renesas R5F56216BDFP#V0

Overview

R5F56216BDFP#V0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller featuring single-precision IEEE-754 FPU, 256 KB on-chip flash, 64 KB SRAM, 32 KB data flash, 12-bit ADC (8-channel), dual 10-bit DAC, Ethernet MAC (10/100 Mbps), USB 2.0 Full-Speed host/function/OTG, CAN 2.0B (1 channel), and TFT-LCD controller - deployed in industrial HMIs and networked embedded gateways.

For engineers reviewing the R5F56216BDFP#V0 datasheet, R5F56216BDFP#V0 pinout, R5F56216BDFP#V0 application, or R5F56216BDFP#V0 equivalent, key selection criteria include its LQFP100 package with 72 GPIOs (5 V tolerant), 100 MHz real-time performance (165 DMIPS), integrated Ethernet+USB+CAN connectivity, and support for deep software standby with RTC retention - critical for low-power connected device designs.

Technical Context

The R5F56216BDFP#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), power-on reset, low-voltage detection, and four low-power modes including Deep Software Standby with RTC operation.

Key Specifications

Pinout & Package

LQFP100 package (PLQP0100KB-A), 14 × 14 mm body, 0.5 mm pitch, 100 pins including 72 general-purpose I/Os (5 V tolerant), 4 dedicated analog inputs (AN0–AN3), 2 USB differential pairs (USB0_DP/DM), Ethernet RMII signals (ET_RXD0/1, ET_TXD0/1, ET_TX_EN, ET_RX_DV), CANH/CANL, and dedicated oscillator pins (XTAL/EXTAL).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56216BDFP#V0, R5F56217BDFP#V0 offers headroom for feature-rich firmware while maintaining identical peripheral set and pinout; R5F562N6BDFP#V0 trades display and USB flexibility for external memory support - making it unsuitable as a drop-in replacement in HMI or dual-interface gateway designs.

Availability

R5F56216BDFP#V0 is available at Aetrix Electronics and suitable for industrial HMIs, smart gateways, and networked power meters requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature operation.

Supply support for R5F56216BDFP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The RX621 Group, including R5F56216BDFP#V0, was designed for cost-optimized, high-integration embedded control applications demanding rich connectivity (Ethernet/USB/CAN), real-time analog processing, and low-power operation - especially in human-machine interfaces and edge intelligence nodes.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F56216BDFP#V0?

The R5F56216BDFP#V0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS performance. This is achieved through its optimized RXv1 CPU core with 5-stage pipeline and single-cycle instruction execution for many basic operations. The DMIPS value reflects real-world integer performance measured under standardized conditions and is directly usable for estimating real-time task scheduling headroom in applications like motor control or protocol stack execution.

Does the R5F56216BDFP#V0 support Ethernet connectivity, and what interface options are available?

Yes, the R5F56216BDFP#V0 integrates a full-featured Ethernet MAC supporting 10/100 Mbps operation in half- or full-duplex mode. It provides both MII and RMII interface options - with RMII requiring only 7 pins and a 50 MHz reference clock (REF50CK), simplifying PCB layout and reducing external component count. The built-in 2 KB transmit and receive FIFOs, plus dedicated Ethernet DMA, minimize CPU overhead during packet handling.

What analog capabilities does the R5F56216BDFP#V0 provide, and how are they configured?

The R5F56216BDFP#V0 includes a 12-bit A/D converter with 8 input channels (AN0–AN7), capable of 1.0 µs conversion time when PCLK runs at 50 MHz. It also features two independent 10-bit D/A converters. The ADC supports single-scan, continuous-scan, and trigger-started modes (via timer or external signal), and includes sample-and-hold circuitry. These resources are fully accessible in the R5F56216BDFP#V0 and require no external components for basic precision measurement or analog output generation.

Is the R5F56216BDFP#V0 pin-compatible with other members of the RX621 Group?

Yes, the R5F56216BDFP#V0 shares the same LQFP100 package (PLQP0100KB-A) and identical pin assignment with all other RX621 Group devices in that package, including R5F56217BDFP#V0 and R5F56218BDFP#V0. This allows hardware design reuse across flash-size variants - firmware and layout remain unchanged when upgrading to higher-memory versions, provided peripheral usage stays within the R5F56216BDFP#V0's defined feature set.

What power supply and temperature specifications apply to the R5F56216BDFP#V0?

The R5F56216BDFP#V0 operates from a single 2.7 V to 3.6 V supply across the full industrial temperature range of –40°C to +85°C. It features integrated power-on reset (POR), low-voltage detection (LVD) with programmable threshold, and four low-power modes - including Deep Software Standby with RTC active at ~1.5 µA. These characteristics make the R5F56216BDFP#V0 suitable for battery-backed or wide-temperature industrial deployments without additional supervisory circuitry.