Renesas R5F51403AGNH#30

Overview

R5F51403AGNH#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 64 KB flash, 16 KB SRAM, 4 KB data flash, 8-channel 12-bit ADC (0.67 µs conversion), dual 8-bit DACs, and capacitive touch sensing for up to 12 keys - deployed in industrial HMI and low-power sensor nodes.

For engineers reviewing the R5F51403AGNH#30 datasheet, R5F51403AGNH#30 pinout, R5F51403AGNH#30 application, or R5F51403AGNH#30 equivalent, key selection criteria include its HWQFN-32 package (5 × 5 mm, 0.5 mm pitch), –40 to +105°C temperature grade, CAN-free peripheral set, and absence of RTC and encryption modules compared to higher-memory variants.

Technical Context

The R5F51403AGNH#30 implements the RXv2 CPU core with IEEE-754-compliant 32-bit FPU, 204 CoreMark score at 48 MHz, and Harvard architecture with 5-stage pipeline. It supports variable-length instructions and ultra-compact code density while delivering fast interrupt response and on-chip debugging via FINE interface.

Its clock system integrates high-speed on-chip oscillator (48 MHz ±1%), sub-clock (32.768 kHz), PLL (4–12 MHz input), and dedicated IWDT oscillator (15 kHz). Power management includes four low-power modes, 0.25 µA software standby current (typ.), and 6.2 µs wake-up time from standby using HOCO 32 MHz.

Key Specifications

Pinout & Package

Packaged in a 32-pin HWQFN (PWQN0032KE-A) measuring 5 × 5 mm with 0.5 mm pitch, the R5F51403AGNH#30 features exposed thermal pad for enhanced power dissipation in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51403ADNH#30, the R5F51403AGNH#30 offers extended temperature operation critical for automotive and industrial deployments; versus R5F51403AGFM#30, it trades pin count and peripheral count for compactness and lower BOM cost in space-constrained nodes.

Availability

R5F51403AGNH#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance control panels, automotive cabin modules, and programmable power supply monitors requiring stable component supply across extended temperature ranges.

Supply support for R5F51403AGNH#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, power, and SoC solutions for industrial, automotive, and enterprise markets.

The RX140 Group targets cost-optimized, low-power embedded applications demanding rich analog integration, capacitive touch, and functional safety support - designed specifically for HMI, sensor aggregation, and intelligent power control.

FAQ

What is the maximum operating frequency and core type of the R5F51403AGNH#30?

The R5F51403AGNH#30 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. It achieves 204 CoreMark performance at that speed and includes an IEEE-754-compliant single-precision FPU. The core uses Harvard architecture with a 5-stage pipeline and supports variable-length instructions for high code density. This makes the R5F51403AGNH#30 well-suited for real-time control tasks in resource-constrained environments.

Does the R5F51403AGNH#30 include a real-time clock (RTC) module?

No, the R5F51403AGNH#30 does not include a real-time clock (RTCB) module. According to Table 1.2 in the datasheet, RTC support is explicitly marked as "Not supported" for 32-pin packages like the PWQN0032KE-A used by R5F51403AGNH#30. While the sub-clock oscillator pins (XCIN/XCOUT) are present and functional for other timing purposes, the RTC peripheral logic is omitted in this variant. For calendar-based timekeeping, external RTC ICs or software-based counters must be used with the R5F51403AGNH#30.

What are the memory resources available on the R5F51403AGNH#30?

The R5F51403AGNH#30 integrates 64 KB of on-chip flash memory for program storage, 16 KB of SRAM with no wait states, and 4 KB of data flash rated for 1,000,000 program/erase cycles. Flash supports on-board programming at 1.8 V and is organized for both instruction and operand access. The data flash enables reliable non-volatile parameter storage - ideal for calibration data or field-updatable configuration in industrial devices using the R5F51403AGNH#30.

Which communication interfaces are supported by the R5F51403AGNH#30?

The R5F51403AGNH#30 supports one I2C bus interface (RIICa), one serial peripheral interface (RSPIc), and three SCI channels (SCIk ×2, SCIh ×1) - totaling six serial ports. It does not include CAN or USB. Each SCI channel supports asynchronous, clock-synchronous, and smart card modes; RSPI operates up to 16 Mbps with 128-bit buffers; and I2C runs up to 400 kbps with SMBus compatibility. These interfaces provide flexible connectivity for sensors, displays, and host processors in designs based on the R5F51403AGNH#30.

What is the package type and pin count of the R5F51403AGNH#30?

The R5F51403AGNH#30 is housed in a 32-pin HWQFN package designated PWQN0032KE-A, measuring 5 × 5 mm with 0.5 mm pitch and an exposed thermal pad. This compact, lead-free, RoHS-compliant package supports reflow soldering and provides efficient thermal dissipation for continuous operation in enclosed industrial housings. Its small footprint makes the R5F51403AGNH#30 ideal for space-constrained applications such as portable instrumentation and modular control units.