Renesas R5F52318BDFP#10

Overview

R5F52318BDFP#10 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 512 KB on-chip flash memory, 64 KB SRAM, and integrated FPU compliant with IEEE754 single-precision floating-point standard. It features USB 2.0 full-speed host/function/OTG, CAN 2.0B (ISO11898-1), 24-channel 12-bit A/D converter (0.83 µs conversion time), and capacitive touch sensing unit supporting up to 24 self-capacitance keys - deployed in industrial HMI control panels requiring real-time sensor fusion and secure firmware execution.

For engineers reviewing the R5F52318BDFP#10 datasheet, R5F52318BDFP#10 pinout, R5F52318BDFP#10 application, or R5F52318BDFP#10 equivalent, key selection considerations include its 100-pin LFQFP package (14 × 14 mm, 0.5 mm pitch), support for IEC60730 safety compliance functions, TSIP-Lite encryption engine (AES-128/256, GCM/CBC), and dual 12-bit D/A outputs - critical for closed-loop analog control and secure boot verification in certified embedded systems.

Technical Context

The R5F52318BDFP#10 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling 88.56 DMIPS at 54 MHz. It integrates an on-chip memory protection unit (MPU), fast interrupt response, and event link controller (ELC) enabling peripheral-to-peripheral triggering without CPU intervention.

Its clock system includes main oscillator (1–20 MHz), sub-clock (32.768 kHz), PLL (4–12.5 MHz input), USB-dedicated PLL (4/6/8/12 MHz), and independent IWDT oscillator. Power management supports three low-power modes, software standby with low-power timer (LPT), and operation from 1.8–5.5 V supply across −40 to +85°C.

Key Specifications

Pinout & Package

Package: 100-pin Low-Profile Quad Flat Package (LFQFP), PLQP0100KB-B, 14 × 14 mm body, 0.5 mm pitch, exposed pad (thermal pad), RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52318ADFP#30, R5F52318BDFP#10 adds CAN and SDHI for field connectivity and local update capability; compared with R5F52318BGFP#30, it trades extended temperature rating for cost efficiency in standard industrial environments.

Availability

R5F52318BDFP#10 is available at Aetrix Electronics and suitable for industrial HMI panels, secure IoT gateways, medical patient monitors, and smart energy meters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F52318BDFP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and infrastructure markets.

The RX231 Group, including R5F52318BDFP#10, is engineered for high-integrity industrial applications demanding real-time performance, functional safety compliance (IEC60730), and hardware-based security - targeting HMI, gateway, and metering systems.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F52318BDFP#10?

The R5F52318BDFP#10 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 88.56 DMIPS and includes an IEEE754-compliant single-precision floating-point unit (FPU) for deterministic math-intensive tasks. This architecture enables efficient code density and real-time determinism required in industrial control applications.

Does the R5F52318BDFP#10 support CAN communication, and what standard does it comply with?

Yes, the R5F52318BDFP#10 integrates one CAN module (RSCAN) compliant with ISO11898-1, supporting both standard and extended frames at up to 1 Mbps. It includes 16 message boxes and is fully functional in the R5F52318BDFP#10 variant as confirmed in Table 1.2 of the datasheet. This makes R5F52318BDFP#10 suitable for industrial fieldbus integration and automotive subsystems requiring robust differential signaling.

What security features does the R5F52318BDFP#10 provide for firmware protection?

The R5F52318BDFP#10 includes TSIP-Lite - a hardware security engine supporting AES-128/256 in GCM, CBC, ECB, and CMAC modes, plus a true random number generator and secure key management. It prevents unauthorized access to encryption resources and enables secure boot verification and OTA firmware updates. These capabilities are documented in the R01DS0261EJ0120 datasheet and align with IEC60730 Class B safety requirements.

What is the package type and pin count of the R5F52318BDFP#10?

The R5F52318BDFP#10 uses a 100-pin Low-Profile Quad Flat Package (LFQFP), designated PLQP0100KB-B, with 14 × 14 mm body size and 0.5 mm pitch. This package includes an exposed thermal pad and supports reflow soldering per JEDEC J-STD-020. Pin compatibility is verified against Renesas' official package drawing and Table 1.3 in the R01DS0261EJ0120 datasheet.

Is the R5F52318BDFP#10 qualified for extended temperature operation?

No, the R5F52318BDFP#10 is rated for −40 to +85°C (D version), not the extended −40 to +105°C (G version). The G-version counterpart is R5F52318BGFP#30. Operating R5F52318BDFP#10 beyond +85°C ambient may cause timing violations or reduced reliability. For high-temperature environments, R5F52318BGFP#30 must be selected instead.