Renesas R5F51405ADFL#10

Overview

R5F51405ADFL#10 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 128 KB flash, 32 KB SRAM, 8 KB data flash, 12-bit A/D converter (11 external channels), two 8-bit D/A channels, and capacitive touch sensing (24-key self-capacitance). It targets low-power industrial control and human-interface applications requiring IEC60730 compliance and secure firmware updates.

For engineers reviewing the R5F51405ADFL#10 datasheet, R5F51405ADFL#10 pinout, R5F51405ADFL#10 application, or R5F51405ADFL#10 equivalent, key selection criteria include its 48-pin LFQFP package (7 × 7 mm, 0.5 mm pitch), –40 to +85°C temperature grade, absence of CAN and RTC modules, and support for AES/RNG encryption hardware acceleration.

Technical Context

The R5F51405ADFL#10 implements the RXv2 CPU core with IEEE-754-compliant 32-bit FPU, 204 CoreMark score at 48 MHz, and ultra-compact variable-length instruction set. Its memory subsystem includes no-wait-state SRAM, 1,000,000-cycle data flash with background operation, and flash programmable at 1.8 V.

Power management integrates four low-power modes, 0.25 µA software standby current (25°C), and 6.2 µs wake-up time from standby using HOCO 32 MHz clock. Peripheral control leverages ELC for interrupt-free module triggering and MPC for flexible pin function assignment across 39 GPIOs.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51405ADFL#10, R5F51405ADFM#30 offers expanded peripheral integration at the cost of board space, while R5F51403ADFL#30 reduces memory and security features to lower BOM cost-both retain identical package compatibility and core architecture.

Availability

R5F51405ADFL#10 is available at Aetrix Electronics and suitable for industrial control panels, smart appliance HMIs, PLC I/O modules, and energy monitoring gateways requiring stable component supply and long-term lifecycle support.

Supply support for R5F51405ADFL#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 enterprise markets.

The RX140 Group is designed for cost-optimized, low-power industrial and consumer applications demanding functional safety (IEC60730), secure firmware execution, and rich analog/motor control peripherals-all within compact QFP/QFN packages.

FAQ

What is the maximum operating frequency and core type of the R5F51405ADFL#10?

The R5F51405ADFL#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. It achieves 204 CoreMark performance at this speed and includes an IEEE-754-compliant 32-bit floating-point unit. The core uses a CISC Harvard architecture with a 5-stage pipeline and variable-length instructions, enabling efficient code density and deterministic real-time execution critical for industrial control applications. This specification is confirmed in the R01DS0379EJ0120 datasheet Rev.1.20, Page 1.

Does the R5F51405ADFL#10 include CAN or RTC functionality?

No, the R5F51405ADFL#10 does not include CAN or RTC functionality. As specified in Table 1.2 of the R01DS0379EJ0120 datasheet, the 48-pin variants (including R5F51405ADFL#10) lack both the RSCAN CAN module and RTCB real-time clock module. These peripherals are only available in 64-pin and 80-pin RX140 packages. The R5F51405ADFL#10 instead emphasizes low-power operation, capacitive touch, and IEC60730 safety features suitable for cost-constrained HMI and control applications.

What package type and pin count does the R5F51405ADFL#10 use?

The R5F51405ADFL#10 uses a 48-pin LFQFP package designated PLQP0048KB-B: 7 mm × 7 mm body size with 0.5 mm pitch and an exposed thermal pad. This is explicitly listed in Table 1.3 (Page 7) and Figure 1.1 (Page 9) of the R01DS0379EJ0120 datasheet. The "FL" suffix in the part number directly encodes this package variant, distinguishing it from 64-pin (FM/FK) and 80-pin (FN) options in the RX140 family.

How many A/D converter channels does the R5F51405ADFL#10 support?

The R5F51405ADFL#10 supports 11 external analog input channels plus one internal channel (temperature sensor) for its 12-bit S12ADE A/D converter. This is confirmed in Table 1.2 (Page 6) of the R01DS0379EJ0120 datasheet, which specifies "11 channels *1" for 48-pin products. The minimum conversion time is 0.67 µs when ADCLK runs at 48 MHz, and per-channel sampling time configuration enables optimized acquisition across mixed-signal sensors.

Is hardware encryption available on the R5F51405ADFL#10?

Yes, the R5F51405ADFL#10 includes hardware-accelerated encryption via the AESA module supporting AES-128 and AES-256 in ECB, CBC, and CTR modes, along with the RNGA true random number generator. This is documented in the "Encryption functions (optional)" section (Page 1) and Table 1.3 (Page 7), where the "A" in the part number denotes inclusion of the encryption module. The AESA executes 128-bit keys in 176 cycles and complies with FIPS PUB 197, enabling secure boot and firmware update capabilities.