Renesas R5F52305ADFP#10

Overview

R5F52305ADFP#10 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, 12-bit A/D converter (24 channels), and 12-bit D/A converter (2 channels). It integrates USB 2.0 full-speed host/function/OTG, CAN, SCI, I²C, RSPI, capacitive touch sensing (24 keys), RTC, FPU, TSIP-Lite encryption, and operates from 1.8–5.5 V across −40 to +85°C.

For engineers reviewing the R5F52305ADFP#10 datasheet, R5F52305ADFP#10 pinout, R5F52305ADFP#10 application, or R5F52305ADFP#10 equivalent, key selection criteria include its 100-pin LFQFP package, absence of SDHI and CAN modules (per Table 1.3), presence of USB and CTSU, and suitability for industrial HMI, sensor nodes, and secure embedded control where compact footprint and mixed-signal integration are critical.

Technical Context

The R5F52305ADFP#10 belongs to the RX230 Group and implements the RXv2 CPU core with IEEE 754-compliant 32-bit single-precision FPU, 32×32→64-bit multiplier, and 32-bit divider (2-cycle min). Its memory subsystem includes 128 KB flash (no-wait ≤32 MHz, wait states ≥32 MHz), 32 KB SRAM (no-wait at 54 MHz), and 8 KB data flash rated for 1M program/erase cycles with background operation support.

Peripheral integration centers on event-driven architecture: ELC enables interrupt-free inter-module triggering (e.g., timer → ADC start), while MPC allows flexible pin function assignment. Clocking supports main (1–20 MHz), sub (32.768 kHz), and on-chip oscillators, with PLL enabling 54 MHz system clock and 48 MHz USB clock - though USB functionality is confirmed active per datasheet Section 1.1 and Table 1.3.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52305ADFP#10, R5F52306ADFP#30 offers double flash and data flash for field-upgradable firmware, while R5F52315ADFP#30 trades no SDHI/CAN for those exact interfaces - making R5F52305ADFP#10 optimal for cost-sensitive USB+touch HMI where those buses are unnecessary.

Availability

R5F52305ADFP#10 is available at Aetrix Electronics and suitable for industrial HMI panels, secure sensor nodes, USB peripheral devices, and embedded motor controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant 100-pin LFQFP packaging.

Supply support for R5F52305ADFP#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, power, and SoC solutions for industrial, automotive, and IoT markets.

The RX230 Group - to which R5F52305ADFP#10 belongs - was designed for cost-optimized, low-power embedded control with rich analog integration, USB connectivity, and security features targeting HMI, appliance, and sensor-edge applications.

FAQ

What is the maximum operating frequency and core type of the R5F52305ADFP#10?

The R5F52305ADFP#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 54 MHz, delivering 88.56 DMIPS performance. It includes an IEEE 754-compliant single-precision floating-point unit, 32×32→64-bit hardware multiplier, and 32-bit divider with minimum 2-cycle execution. This core enables deterministic real-time control in applications such as motor drives and sensor fusion where computational throughput matters.

Does the R5F52305ADFP#10 include CAN or SD host interface functionality?

No, the R5F52305ADFP#10 does not include CAN or SD host interface (SDHI) modules. As confirmed in Table 1.3 of the R01DS0261EJ0120 datasheet, the RX230 Group part R5F52305ADFP#10 explicitly lists "Not available" for both CAN and SDHI columns. These peripherals are present only in selected RX231 Group variants like R5F52315ADFP#30 - making R5F52305ADFP#10 ideal for USB+touch applications where those interfaces are unnecessary.

What package type and pin count does the R5F52305ADFP#10 use?

The R5F52305ADFP#10 uses the PLQP0100KB-B package: a 100-pin Low-Profile Quad Flat Package with 14 mm × 14 mm body size, 0.5 mm lead pitch, and exposed thermal pad. This RoHS-compliant package supports fine-pitch PCB assembly and provides ample I/O for complex HMI and sensor interface designs while maintaining thermal performance under continuous 54 MHz operation.

How much flash, RAM, and data flash memory does the R5F52305ADFP#10 integrate?

The R5F52305ADFP#10 integrates 128 KB of on-chip flash memory for program code and constants, 32 KB of SRAM for runtime variables and stack, and - per Table 1.3 - no on-chip data flash (E2 DataFlash). Unlike higher variants (e.g., R5F52306ADFP#30), this part omits the 8 KB data flash block, meaning non-volatile parameter storage must be implemented externally or via flash wear-leveling techniques in the main 128 KB array.

Is USB functionality supported on the R5F52305ADFP#10, and what modes are available?

Yes, the R5F52305ADFP#10 fully supports USB 2.0 functionality via its integrated USBd module. It operates in full-speed (12 Mbps) and low-speed (1.5 Mbps) modes, supports host/function/OTG roles, isochronous transfers, and BC1.2 battery charging detection. The on-chip transceiver eliminates need for external PHY, and internal VCC_USB regulation allows operation without external USB power when VCC = 4.0–5.5 V - simplifying USB peripheral design.