Renesas R5F51405ADFL#30

Overview

R5F51405ADFL#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 128 KB flash, 32 KB SRAM, 12-bit A/D converter with 11 external channels, two 8-bit D/A channels, and integrated capacitive touch sensing (24-key self-capacitance). It targets low-power industrial HMI and sensor interface applications requiring IEC60730 compliance, CAN-free control, and compact 48-pin LFQFP packaging.

For engineers reviewing the R5F51405ADFL#30 datasheet, R5F51405ADFL#30 pinout, R5F51405ADFL#30 application, or R5F51405ADFL#30 equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing and power parameters - all confirmed for the exact PLQP0048KB-B (7×7 mm, 0.5 mm pitch) variant.

Technical Context

The R5F51405ADFL#30 implements the RXv2 CPU core with IEEE-754-compliant 32-bit FPU, 204 CoreMark score at 48 MHz, and on-chip divider completing 32-bit ÷ 32-bit in two cycles. Its memory subsystem includes no-wait-state SRAM and flash with 32 MHz ≤ access, plus 4 KB data flash rated for 1M program/erase cycles.

Peripherals are orchestrated via ELC and MPC: ELC enables interrupt-free event-triggered operation (e.g., MTU timer start on A/D conversion completion), while MPC allows flexible I/O function assignment across 39 GPIOs - including 5-V-tolerant, open-drain, and pull-up options - supporting mixed-voltage system interfacing without level shifters.

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#30, R5F51405ADFM#30 offers expanded I/O and RTC at the cost of board area, while R5F51403ADFL#30 trades memory, security, and touch capacity for lower unit cost - making the R5F51405ADFL#30 the optimal balance of feature density and compactness for mid-tier industrial edge nodes.

Availability

R5F51405ADFL#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, appliance motor controllers, and factory automation I/O modules requiring stable component supply, long-term lifecycle assurance, and Renesas-qualified production lots.

Supply support for R5F51405ADFL#30 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, and power solutions for automotive, industrial, and IoT markets.

The RX140 Group - including R5F51405ADFL#30 - is engineered for cost-sensitive, low-power industrial control and human-machine interface applications demanding high code efficiency, functional safety support, and rich analog integration in compact packages.

FAQ

What is the maximum operating frequency and core type of the R5F51405ADFL#30?

The R5F51405ADFL#30 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 5-stage pipeline, variable-length instructions, and supports both little-endian and big-endian data arrangement - all confirmed for the exact R5F51405ADFL#30 part number in its 48-pin LFQFP package.

Does the R5F51405ADFL#30 include a real-time clock (RTC) module?

No, the R5F51405ADFL#30 does not include a real-time clock (RTCB) module. Per Table 1.2 in the official datasheet, RTC functionality is explicitly marked as "Not supported" for all 48-pin variants including R5F51405ADFL#30. This omission is package-dependent - RTC is available only in 64-pin and 80-pin RX140 devices. The R5F51405ADFL#30 retains the low-power timer (LPTa) for interval timing during software standby.

How many capacitive touch sensing channels does the R5F51405ADFL#30 support?

The R5F51405ADFL#30 supports 24 capacitive touch sensing keys using the self-capacitance method, as specified in Table 1.2 for 48-pin products. This is implemented via the CTSU2SL module and maps to dedicated CTSU pins (e.g., Pins 4–9, 14, 19, etc.) on the PLQP0048KB-B package. Mutual capacitance (64-key matrix) is not available in this variant.

What are the flash and SRAM capacities of the R5F51405ADFL#30?

The R5F51405ADFL#30 integrates 128 KB of on-chip flash memory for program storage and 32 KB of SRAM for data and stack operations. Both memories operate with zero wait states up to 32 MHz and support in-application programming. These capacities are fixed for the "5" memory grade (R5F51405x) and are identical across all package options of this variant, including the R5F51405ADFL#30 in 48-pin LFQFP.

Is the R5F51405ADFL#30 CAN-capable?

No, the R5F51405ADFL#30 does not include the RSCAN CAN module. According to Table 1.2, CAN functionality is "Not supported" for all 48-pin RX140 devices, including R5F51405ADFL#30. CAN is only available in 64-pin and 80-pin variants (e.g., R5F51405ADFN#30). The R5F51405ADFL#30 retains six SCI channels, one I²C, one RSPI, and one RIIC interface for alternative serial communication needs.