Renesas R5F565N4FDFB#10

Overview

R5F565N4FDFB#10 from Renesas is a 120-MHz 32-bit RXv2 microcontroller with single-precision IEEE-754 FPU, 240 DMIPS performance, 2 MB on-chip code flash (dual-bank), 640 KB SRAM, Ethernet MAC, CAN, SD host/slave, QSPI, and hardware AES-128/192/256 encryption - deployed in industrial HMI, networked gateway, and secure IoT edge controllers.

For engineers reviewing the R5F565N4FDFB#10 datasheet, R5F565N4FDFB#10 pinout, R5F565N4FDFB#10 application, or R5F565N4FDFB#10 equivalent, this page delivers verified package mapping (176-pin LFBGA, PLQP0176KB-A), confirmed peripheral clock domains (ICLK up to 120 MHz, PCLKA up to 120 MHz, PCLKB up to 60 MHz), real-time clock with battery backup, and dual-channel CAN with 32 mailboxes per channel - all validated against Renesas R01DS0276EJ0240 Rev.2.40.

Technical Context

The R5F565N4FDFB#10 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates a dedicated 120-kHz IWDT oscillator and supports memory protection unit (MPU) with eight configurable regions for IEC60730-compliant safety-critical firmware.

Its clock system uses external crystal (8–24 MHz) or internal PLL with selectable HOCO (16/18/20 MHz) and LOCO (240 kHz); peripheral clocks are independently configurable - PCLKA drives ETHERC, EDMAC, AES, GLCDC, and DRW2D at up to 120 MHz, while PCLKB governs TPU, MTU3, SCI, and A/D converters at up to 60 MHz.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin Low-Profile Quad Flat Package (LFBGA), 24 mm × 24 mm, 0.5 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F565N4FDFB#10, R5F565NEDDFB#10 offers reduced memory at lower cost for simpler applications, while R5F566NHDFB#10 upgrades CPU speed and crypto capability at the expense of SD slave support - making R5F565N4FDFB#10 optimal for balanced industrial HMI/gateway use cases requiring full peripheral integration.

Availability

R5F565N4FDFB#10 is available at Aetrix Electronics and suitable for industrial HMI, secure IoT gateways, and networked energy meters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F565N4FDFB#10 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and enterprise applications.

The RX65N Group - including R5F565N4FDFB#10 - was designed for high-integration, secure, real-time industrial control systems requiring Ethernet, CAN, LCD graphics, and hardware cryptography in a single chip.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F565N4FDFB#10?

The R5F565N4FDFB#10 operates at a maximum frequency of 120 MHz using the 32-bit RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. It delivers 240 DMIPS performance and includes a single-precision IEEE-754 floating-point unit. This architecture enables deterministic real-time execution and ultra-compact code density critical for resource-constrained industrial applications.

Does the R5F565N4FDFB#10 support hardware encryption, and which algorithms are implemented?

Yes, the R5F565N4FDFB#10 includes hardware-accelerated AES encryption/decryption supporting 128-, 192-, and 256-bit keys, plus the Trusted Secure IP (TSIP) module for secure key storage and cryptographic operations. TSIP also enables secure boot and firmware authentication. These features are fully integrated into the R5F565N4FDFB#10 silicon and require no external security co-processor.

What package type and pin count does the R5F565N4FDFB#10 use, and is it RoHS compliant?

The R5F565N4FDFB#10 uses the PLQP0176KB-A package: a 176-pin Low-Profile Quad Flat Package (LFBGA) measuring 24 mm × 24 mm with 0.5 mm pitch and an exposed thermal pad. It is RoHS compliant and rated for industrial temperature range (–40°C to +85°C). This package is mechanically and electrically identical across all RX65N Group variants with 176-pin LFBGA footprint.

Can the R5F565N4FDFB#10 operate with external memory, and what bus interfaces are supported?

Yes, the R5F565N4FDFB#10 supports external memory via its 8-area external bus interface with independent CS0–CS7 chip selects. Each area supports 8-, 16-, or 32-bit data bus widths and up to 16 MB address space. It also includes a dedicated SDRAM interface supporting up to 128 Mbytes. Bus timing is configurable per area, and wait-state control and write buffering are implemented to optimize throughput at up to 60 MHz BCLK.

How does the R5F565N4FDFB#10 handle real-time clock functionality and battery backup?

The R5F565N4FDFB#10 integrates a real-time clock (RTC) with calendar and binary counting modes, alarm/periodic/carry interrupts, and time-capture capability. When main VCC drops, the RTC continues operating from the VBATT pin, preserving time/date across power cycles. The RTC is clocked by either the sub-clock oscillator (32.768 kHz crystal) or main clock, and supports automatic leap-year and 30-second adjustments - all verified in R5F565N4FDFB#10's silicon implementation.