Renesas R5F52315CDLF#U0

Overview

R5F52315CDLF#U0 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 128 KB on-chip flash, 32 KB SRAM, 8 KB data flash, integrated FPU (IEEE 754 single-precision), and hardware encryption (TSIP-Lite AES-128/256). It targets industrial HMI, smart sensor nodes, and USB-connected embedded control where deterministic real-time response, low-power operation, and secure firmware updates are required.

For engineers reviewing the R5F52315CDLF#U0 datasheet, R5F52315CDLF#U0 pinout, R5F52315CDLF#U0 application, or R5F52315CDLF#U0 equivalent, key selection criteria include its 5×5 mm WFLGA-64 package, absence of CAN/SDHI peripherals, support for USB 2.0 full-speed host/function/OTG, 24-channel 12-bit ADC with 0.83 µs conversion, and dual 12-bit DAC outputs - all within −40 to +85°C industrial temperature range.

Technical Context

The R5F52315CDLF#U0 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions, enabling high code density and deterministic interrupt latency. It integrates an on-chip FPU compliant with IEEE 754 and a dedicated TSIP-Lite security engine supporting AES-GCM, CBC, and true random number generation.

Its clock system includes main (1–20 MHz), sub-clock (32.768 kHz), and multiple on-chip oscillators (low/high-speed, IWDT-dedicated), with PLL and USB-dedicated PLL enabling independent 54 MHz system clock and 48 MHz USB clock. The ELC enables event-driven peripheral coordination without CPU intervention, critical for ultra-low-power operation in software standby mode.

Key Specifications

Pinout & Package

Package: PWLG0064KA-A - 64-pin Wafer-Level Chip-Scale Package (WFLGA), 5.0 × 5.0 mm body, 0.5 mm pitch, bottom-side solder balls. Designed for space-constrained industrial PCBs requiring high I/O density and thermal efficiency.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52315CDLF#U0, R5F52315ADLF#U0 adds RTC and data flash at identical pinout and power profile, while R5F52316CDLF#U0 doubles flash capacity without altering peripheral set - making both viable alternatives depending on whether timekeeping or code size is the limiting factor.

Availability

R5F52315CDLF#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, USB-controlled actuator modules, and secure firmware update endpoints requiring stable component supply across multi-year production cycles.

Supply support for R5F52315CDLF#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT applications.

The RX231 Group - to which R5F52315CDLF#U0 belongs - is engineered for cost-sensitive industrial control and human-machine interface applications demanding real-time performance, low-power operation, and integrated security without CAN or SD card interfaces.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52315CDLF#U0?

The R5F52315CDLF#U0 operates at a maximum system clock frequency of 54 MHz, delivering 88.56 DMIPS. Its RXv2 CPU core features a 5-stage pipeline, variable-length instructions, and hardware floating-point unit compliant with IEEE 754 single-precision standard - enabling deterministic real-time execution for control and signal processing tasks.

Does the R5F52315CDLF#U0 support USB functionality, and what modes are available?

Yes, the R5F52315CDLF#U0 integrates a USB 2.0 host/function/OTG module supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) operation. It supports isochronous transfers and BC1.2 battery charging detection. An internal USB regulator allows operation without external VCC_USB supply when VCC is 4.0–5.5 V, simplifying board design for R5F52315CDLF#U0-based USB devices.

What analog peripherals are included in the R5F52315CDLF#U0?

The R5F52315CDLF#U0 includes a 24-channel 12-bit A/D converter with minimum conversion time of 0.83 µs, two 12-bit D/A converters (0.4–AVCC0−0.5 V output range), one temperature sensor, and two analog comparators (CMPBa). It also features a capacitive touch sensing unit (CTSU) supporting up to 24 self-capacitance keys - all accessible within its 64-pin WFLGA package.

Is the R5F52315CDLF#U0 suitable for secure firmware updates, and what security features does it offer?

Yes, the R5F52315CDLF#U0 includes TSIP-Lite - a hardware security engine supporting AES-128/256 in GCM, CBC, ECB, and other modes, plus SHA hash functions and a true random number generator. These features enable secure boot validation, encrypted firmware image decryption, and authenticated updates - critical for protecting R5F52315CDLF#U0-based devices against unauthorized code injection.

What is the package type and pin count of the R5F52315CDLF#U0, and is it RoHS compliant?

The R5F52315CDLF#U0 uses the PWLG0064KA-A package: a 64-pin Wafer-Level Chip-Scale Package (WFLGA) with 5.0 × 5.0 mm body size and 0.5 mm ball pitch. It is lead-free and RoHS compliant, qualified for industrial temperature range (−40 to +85°C), and designed for automated assembly in high-density PCB layouts.