Renesas R5F52316ADFP#30

Overview

R5F52316ADFP#30 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 256 KB on-chip flash memory, 32 KB SRAM, and integrated 12-bit A/D converter (24 channels), 12-bit D/A converter (2 channels), USB 2.0 full-speed host/function/OTG, CAN interface, capacitive touch sensing unit (24 keys), and hardware AES encryption (TSIP-Lite). It operates across −40 to +85°C and targets industrial HMI and smart sensor nodes requiring real-time control, secure communication, and low-power operation.

For engineers reviewing the R5F52316ADFP#30 datasheet, R5F52316ADFP#30 pinout, R5F52316ADFP#30 application, or R5F52316ADFP#30 equivalent, this MCU delivers verified 88.56 DMIPS performance, IEEE 754-compliant FPU, background data flash programming (BGO), event-link controller (ELC) for interrupt-free peripheral coordination, and IEC60730 safety support - critical for functional safety validation in embedded control systems.

Technical Context

The R5F52316ADFP#30 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates a single-precision FPU compliant with IEEE754 and a 32-bit × 32-bit multiplier with 2-cycle divider for deterministic real-time math.

Its clock system supports independent domain clocks: ICLK at 54 MHz for CPU/system, PCLKA at 54 MHz for MTU2a, PCLKD at 54 MHz for ADC, and PCLKB at 32 MHz for most peripherals. The ELC enables direct event-triggered module activation without CPU intervention, including timer-triggered ADC conversion and port output enable control.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin LFQFP, 14 mm × 14 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 industrial MCU applications.

Compared with R5F52316ADFP#30, R5F52316ADLA#20 offers identical functionality in a miniature TFLGA package for high-density layouts, while R5F52317ADFP#30 provides 128 KB more flash for complex applications - both retain full pin compatibility and identical peripheral sets, enabling drop-in replacement in existing designs.

Availability

R5F52316ADFP#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, secure gateways, and motor control interfaces requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature operation.

Supply support for R5F52316ADFP#30 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 industrial, automotive, and IoT markets.

The RX231 Group, which includes R5F52316ADFP#30, was designed for cost-sensitive industrial control and human-machine interface applications demanding real-time performance, functional safety compliance, and integrated connectivity - all in compact packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52316ADFP#30?

The R5F52316ADFP#30 operates at a maximum system clock frequency of 54 MHz. Its RXv2 CPU core delivers 88.56 DMIPS of performance at that speed, validated by EEMBC benchmarks. This performance level supports real-time tasks such as 20 kHz motor control loops, multi-channel sensor fusion, and USB protocol stack execution without throttling. The R5F52316ADFP#30 achieves this with zero wait-state access to SRAM and optimized flash accelerator behavior.

Does the R5F52316ADFP#30 support USB device, host, and OTG functionality?

Yes, the R5F52316ADFP#30 integrates a full-featured USB 2.0 module supporting device, host, and On-The-Go (OTG) modes. It operates at full-speed (12 Mbps) and low-speed (1.5 Mbps), supports isochronous transfers, BC1.2 battery charging detection, and includes an internal USB power supply - eliminating the need for external VCC_USB regulation when VCC is 4.0–5.5 V. The R5F52316ADFP#30 uses the same USB IP block as higher-end RX devices, ensuring interoperability with standard USB hosts and peripherals.

What analog peripherals are included in the R5F52316ADFP#30?

The R5F52316ADFP#30 includes a 12-bit successive-approximation A/D converter (S12ADE) with 24 input channels and 0.83 µs minimum conversion time at 54 MHz ADCLK, plus a 12-bit D/A converter (R12DAA) with two independent output channels delivering 0.4 V to AVCC0−0.5 V. It also integrates a temperature sensor (TEMPSA) whose output is digitized by the same A/D converter, and two analog comparators (CMPBa) with window-mode capability. All analog blocks support self-diagnostic and disconnection-detection features required for IEC60730 certification.

Is the R5F52316ADFP#30 qualified for industrial temperature range and functional safety standards?

Yes, the R5F52316ADFP#30 is rated for −40 to +85°C operation (D version) and includes multiple hardware features supporting IEC60730 Class B compliance: memory protection unit (MPU), RAM test assistance via Data Operation Circuit (DOC), ADC self-test and analog input disconnection detection, clock frequency accuracy measurement circuit (CAC), and independent watchdog timer (IWDT) with dedicated oscillator. These capabilities are documented in the R5F52316ADFP#30 datasheet Sections 24.3 and 25.1 and require no external components to implement.

What development tools and debug interfaces are supported for the R5F52316ADFP#30?

The R5F52316ADFP#30 supports Renesas' FINE (Fast In-Circuit Emulator) debug interface via dedicated pins (MD, RESET#, and optional trace clock), enabling full JTAG-style debugging, real-time trace, and flash programming using E2 studio and CS+ IDEs. It is compatible with Renesas E2 emulator Lite and full-featured E2 emulator, as well as third-party debug probes supporting RX FINE protocol. The R5F52316ADFP#30 does not support SWD or ARM-style debug; its debug architecture is native to the RX family and requires RX-specific toolchains.