Renesas R5F51306BDFL#10

Overview

R5F51306BDFL#10 from Renesas is a 32-bit RX CPU-based microcontroller with 256 KB on-chip flash, 32 KB SRAM, and 8 KB data flash, operating up to 32 MHz (50 DMIPS) across 1.8–5.5 V supply. It integrates 12-bit A/D (10 channels), dual 8-bit D/A, capacitive touch sensing (24 keys), RTC, low-power timer, and multiple communication interfaces including SCI, I²C, and RSPI - deployed in industrial human-machine interface modules requiring compact, low-power, touch-enabled control.

For engineers reviewing the R5F51306BDFL#10 datasheet, R5F51306BDFL#10 pinout, R5F51306BDFL#10 application, or R5F51306BDFL#10 equivalent, key selection criteria include its 48-pin LFQFP package, –40°C to +85°C temperature grade, 10-channel ADC with 1.4 µs conversion, dual DAC outputs, and integrated CTSU supporting self-capacitance touch sensing on 24 pins.

Technical Context

The R5F51306BDFL#10 implements the RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling 50 DMIPS at 32 MHz with single-cycle 32×32 multiply and 64-bit accumulator support. Its clock system includes high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), PLL, and CAC for frequency accuracy measurement.

Power management features three low-power modes, including software standby with 0.37 µA supply current and 4.8 µs wake-up time. Peripheral integration includes ELC for event-driven module operation without CPU intervention, DTC for interrupt-triggered transfers, and MPC for flexible pin function assignment across 38 GPIOs.

Key Specifications

Pinout & Package

Package: PLQP0048KB-B - 48-pin Low-Profile Quad Flat Package, 7 mm × 7 mm, 0.5 mm pitch, exposed pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51306BDFL#10, R5F51306ADFL#30 offers identical functionality but is obsolete for new designs, while R5F51305BDFL#30 reduces flash/SRAM by half - enabling cost-sensitive implementations where firmware size permits, without sacrificing touch, ADC, or low-power features.

Availability

R5F51306BDFL#10 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance interfaces, and battery-powered sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F51306BDFL#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX130 Group targets cost-sensitive, low-power embedded applications demanding rich analog integration, capacitive touch, and functional safety support - optimized for appliances, industrial controls, and medical devices.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51306BDFL#10?

The R5F51306BDFL#10 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS using the 32-bit RXv1 CPU core. Its architecture supports single-cycle 32×32 multiplication, 64-bit accumulator operations, and variable-length instructions for compact, efficient code execution - verified in Renesas documentation R01DS0273EJ0300.

How many analog-to-digital converter channels does the R5F51306BDFL#10 support, and what is its conversion speed?

The R5F51306BDFL#10 includes a 12-bit A/D converter with 10 input channels (AN000–AN007, AN016–AN025) and achieves a minimum conversion time of 1.4 µs when ADCLK runs at 32 MHz. Sampling time per channel is individually configurable, and it supports conversion result comparison and self-diagnostic functions per Renesas DS R01DS0273EJ0300.

Does the R5F51306BDFL#10 support capacitive touch sensing, and how many keys can it handle?

Yes, the R5F51306BDFL#10 integrates a Capacitive Touch Sensing Unit (CTSU) supporting up to 24 keys in self-capacitance mode. This is specific to the 48-pin LFQFP package (PLQP0048KB-B); pins TS0–TS23 are allocated for touch sensing, and the unit includes hardware noise cancellation and auto-calibration features as documented in R01DS0273EJ0300.

What are the low-power capabilities of the R5F51306BDFL#10, particularly in standby mode?

The R5F51306BDFL#10 supports three low-power modes, including software standby with a typical supply current of 0.37 µA. In this mode, the low-power timer (LPT) remains active using the sub-clock or IWDT-dedicated oscillator, enabling wake-up in 4.8 µs - critical for battery-operated applications like environmental sensors or remote controls.

Is the R5F51306BDFL#10 pin-compatible with other members of the RX130 Group, such as the R5F51305BDFL#30?

Yes, the R5F51306BDFL#10 is pin-compatible with R5F51305BDFL#30 and other 48-pin RX130 variants (e.g., R5F51308ADFL#30) in the PLQP0048KB-B package. All share identical pin assignments, electrical characteristics, and peripheral multiplexing - allowing memory-size-based scalability without PCB redesign, as confirmed in Table 1.2 of R01DS0273EJ0300.