Renesas R5F52316ADLA#20

Overview

R5F52316ADLA#20 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 FPU compliant to IEEE 754. It features USB 2.0 full-speed host/function/OTG, CAN interface, 12-bit A/D converter (24 channels), 12-bit D/A converter (2 channels), capacitive touch sensing unit (24 keys), and operates across −40 to +85°C for industrial control panels.

For engineers reviewing the R5F52316ADLA#20 datasheet, R5F52316ADLA#20 pinout, R5F52316ADLA#20 application, or R5F52316ADLA#20 equivalent, key selection criteria include its TFLGA-100 package, 5-V-tolerant I/O, ELC-driven event-triggered peripheral operation, and TSIP-Lite encryption engine supporting AES-128/256 in GCM/CBC modes.

Technical Context

The R5F52316ADLA#20 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling 88.56 DMIPS at 54 MHz. It integrates a single-precision FPU, 32-bit multiplier, and 32-bit divider with two-cycle minimum execution latency.

Its clock system supports multiple sources: main oscillator (1–20 MHz), sub-clock (32.768 kHz), on-chip high-/low-speed oscillators, PLL (4–12.5 MHz input), and USB-dedicated PLL. System clock (ICLK) runs up to 54 MHz; peripheral clocks (PCLKA/B/D) are independently configurable up to 54 MHz, 32 MHz, and 54 MHz respectively.

Key Specifications

Pinout & Package

Package: PTLG0100KA-A - 100-pin Thin Fine-Pitch Land Grid Array, 5.5 × 5.5 mm body, 0.5 mm pitch, 0.45 mm height, RoHS-compliant, lead-free, designed for high-density PCB layouts with low inductance and thermal efficiency.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52316ADLA#20, R5F52316ADFP#30 offers identical functionality in a larger, more manufacturable package, while R5F52317ADLA#20 extends code storage and adds robust data retention capability-both require no firmware changes but differ in physical integration and long-term data management strategy.

Availability

R5F52316ADLA#20 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, PLC I/O modules, and medical infusion pump controllers requiring stable component supply and long-term lifecycle assurance.

Supply support for R5F52316ADLA#20 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 automotive, industrial, and IoT markets.

The RX231 Group-including R5F52316ADLA#20-is engineered for cost-sensitive, high-reliability industrial applications demanding rich analog integration, real-time responsiveness, and functional safety support.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52316ADLA#20?

The R5F52316ADLA#20 operates at a maximum system clock frequency of 54 MHz. Its RXv2 CPU core delivers 88.56 DMIPS at this speed, supported by a 5-stage pipeline, variable-length instruction set, and hardware FPU. This enables deterministic real-time execution for motor control, sensor fusion, and protocol stacks without external acceleration.

Does the R5F52316ADLA#20 include USB and CAN interfaces?

Yes, the R5F52316ADLA#20 integrates a USB 2.0 full-speed host/function/OTG module (12 Mbps) with internal transceiver and VCC_USB power management, and one CAN 2.0B channel compliant with ISO 11898-1 supporting up to 1 Mbps. Both interfaces are fully functional in the PTLG0100KA-A package variant.

What are the memory resources available on the R5F52316ADLA#20?

The R5F52316ADLA#20 provides 256 KB of on-chip flash memory for program code and constants, 32 KB of SRAM for runtime variables and stack, and no embedded data flash. Flash supports programming at 1.8 V and includes ROM accelerator for zero-wait-state access up to 32 MHz.

Is the R5F52316ADLA#20 suitable for functional safety applications?

Yes, the R5F52316ADLA#20 includes IEC60730-compliant self-test features: ADC self-diagnostic, IWDT disconnection detection, clock accuracy measurement (CAC), RAM test assistance via DOC, and voltage monitoring circuits. These enable Class B compliance in household appliances and industrial controls without external safety monitors.

What package type and pin count does the R5F52316ADLA#20 use?

The R5F52316ADLA#20 uses the PTLG0100KA-A package: a 100-pin Thin Fine-Pitch Land Grid Array measuring 5.5 × 5.5 mm with 0.5 mm pitch. It supports 79 general-purpose I/O pins, including 5-V-tolerant inputs and open-drain outputs, optimized for compact, high-density PCB designs.