Renesas R5F52305ADLA#20

Overview

R5F52305ADLA#20 from Renesas is a 32-bit RXv2 microcontroller with 128 KB on-chip flash, 54 MHz max operating frequency, IEEE 754-compliant FPU, and 12-bit A/D converter supporting 24 channels - deployed in industrial HMI panels requiring real-time capacitive touch sensing and USB device connectivity.

For engineers reviewing the R5F52305ADLA#20 datasheet, R5F52305ADLA#20 pinout, R5F52305ADLA#20 application, or R5F52305ADLA#20 equivalent, this page delivers verified package mapping (PTLG0100KA-A), confirmed peripheral set (USB 2.0 device, CAN not supported, SDHI not supported), validated clock architecture (PLL + sub-clock RTC), and precise memory configuration (128 KB flash, no data flash, no SRAM spec listed in J-column for this variant).

Technical Context

The R5F52305ADLA#20 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling 88.56 DMIPS at 54 MHz while supporting single-precision floating-point arithmetic per IEEE 754. It integrates an MPU, on-chip debugging circuit, and event link controller (ELC) for interrupt-free peripheral coordination.

Its clock system includes main oscillator (1–20 MHz), sub-clock (32.768 kHz), PLL input range (4–12.5 MHz), and USB-dedicated PLL (4/6/8/12 MHz), allowing independent 54 MHz ICLK and 48 MHz USB clock generation. Power management supports three low-power modes and a battery-backed RTC with calendar mode.

Key Specifications

Pinout & Package

Package: PTLG0100KA-A - 100-pin Thin Fine-Pitch Land Grid Array (TFLGA), 5.5 × 5.5 mm body, 0.5 mm pitch, 0.75 mm height, RoHS-compliant, designed for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52305ADLA#20, R5F52315ADLA#20 adds data flash and SRAM for field-upgradable firmware, while R5F52306ADLA#20 increases flash capacity without data flash - both retain identical peripheral sets and package compatibility, enabling scalable design reuse.

Availability

R5F52305ADLA#20 is available at Aetrix Electronics and suitable for industrial HMI panels, USB device gateways, smart sensor nodes, and energy monitoring modules requiring stable component supply across extended product lifecycles.

Supply support for R5F52305ADLA#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 RX230 Group targets cost-sensitive industrial and consumer applications requiring real-time performance, low power, and rich analog/mixed-signal integration - with R5F52305ADLA#20 optimized for compact, USB-connected edge devices.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F52305ADLA#20?

The R5F52305ADLA#20 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 88.56 DMIPS and includes a single-precision IEEE 754 floating-point unit, on-chip multiplier/divider, and memory protection unit - all confirmed in the official Renesas R01DS0261EJ0120 datasheet.

Does the R5F52305ADLA#20 include on-chip data flash memory?

No, the R5F52305ADLA#20 does not include on-chip data flash memory. Per Table 1.3 in the R01DS0261EJ0120 datasheet, this variant has "Not available" listed under the E2 DataFlash column. In contrast, R5F52315ADLA#20 (same group) includes 8 KB of data flash rated for 1,000,000 program/erase cycles.

Which communication interfaces are supported on the R5F52305ADLA#20?

The R5F52305ADLA#20 supports USB 2.0 full-speed device mode (12 Mbps), up to 7 SCI channels (including IrDA via SCI5), 1 I2C bus interface, 1 RSPI channel, 1 serial sound interface, and 1 CAN module - though CAN is explicitly marked "Not supported" for the RX230 Group in Table 1.2. The part includes no SD host interface or Ethernet MAC.

What package type and pin count does the R5F52305ADLA#20 use?

The R5F52305ADLA#20 uses the PTLG0100KA-A package: a 100-pin Thin Fine-Pitch Land Grid Array with 5.5 × 5.5 mm body size, 0.5 mm pitch, and 0.75 mm height. This package is RoHS-compliant and optimized for high-density PCB layouts, as specified in Renesas document R01DS0261EJ0120, Page 5.

Is the R5F52305ADLA#20 compatible with the RX231 Group's feature set?

No, the R5F52305ADLA#20 belongs to the RX230 Group and lacks several features present in the RX231 Group, including SD host interface (SDHI), CAN module, and real-time clock (RTCe). Table 1.2 confirms RTCe is "Not supported" for RX230 Group parts, and CAN/SDHI are marked "Not supported" for all RX230 variants - making R5F52305ADLA#20 incompatible with designs relying on those peripherals.