Renesas R5F51103AGFL#30

Overview

R5F51103AGFL#30 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 64 Kbytes of on-chip flash, 10 Kbytes of SRAM, 12-bit A/D converter with 10 channels, RTC, and dual SCI interfaces - deployed in industrial sensor nodes requiring low-power, deterministic real-time control.

For engineers reviewing the R5F51103AGFL#30 datasheet, R5F51103AGFL#30 pinout, R5F51103AGFL#30 application, or R5F51103AGFL#30 equivalent, key selection criteria include its 48-pin LFQFP package (PLQP0048KB-A), −40 to +105°C temperature grade, software standby current of 0.35 μA, and integrated IEC 60730 safety support functions.

Technical Context

The R5F51103AGFL#30 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle 32×32-bit multiply operations. Its clock system integrates high-speed (32 MHz ±1%), sub-clock (32.768 kHz), and IWDT-dedicated (15 kHz) oscillators with on-chip frequency accuracy measurement (CAC).

Peripheral integration includes a 4-channel MTU2 timer unit supporting input capture, PWM, and phase counting; two CMT channels; one RIIC interface (400 kbps); one RSPI channel (16 Mbps); and a 12-bit S12AD converter with 1.0 µs minimum conversion time and double-trigger capability for motor sensing.

Key Specifications

Pinout & Package

Package: PLQP0048KB-A - 48-pin Low-Profile Quad Flat Package, 7 mm × 7 mm, 0.5 mm pitch, exposed pad recommended for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51103ADFL#30, the R5F51103AGFL#30 delivers guaranteed operation up to +105°C for harsh environments; compared with R5F51104AGFL#30, it offers optimal cost-performance balance for fixed-function designs with stable firmware size.

Availability

R5F51103AGFL#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC actuators, programmable logic relays, and energy meter front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51103AGFL#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.

The RX110 Group - including the R5F51103AGFL#30 - is engineered for cost-sensitive, low-power industrial control applications demanding IEC 60730 compliance, real-time determinism, and compact footprint.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51103AGFL#30?

The R5F51103AGFL#30 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core supports single-cycle 32×32-bit multiplication and features a five-stage pipeline with variable-length instruction encoding. This enables efficient execution of real-time control algorithms in applications such as motor drives and sensor fusion where deterministic timing is critical. The R5F51103AGFL#30 maintains full performance across its −40 to +105°C operating range.

Which package type and pin count does the R5F51103AGFL#30 use?

The R5F51103AGFL#30 uses the PLQP0048KB-A package: a 48-pin Low-Profile Quad Flat Package measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. This package is optimized for compact industrial PCB layouts while maintaining robust thermal performance. Pin assignments are fully documented in Renesas datasheet R01DS0202EJ0120, including dual power domains (VCC/VSS and AVCC0/AVSS0) and multiplexed peripheral functions managed by the Multi-function Pin Controller (MPC). The R5F51103AGFL#30 shares this package with other RX110 variants like R5F51104AGFL#30 and R5F51101AGFL#30.

Does the R5F51103AGFL#30 support IEC 60730 functional safety requirements?

Yes, the R5F51103AGFL#30 includes on-chip hardware features required for IEC 60730 Class B compliance, including a Clock Frequency Accuracy Measurement circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist functions, and dual voltage detection circuits (LVDA). These features enable self-test and fault detection without external components. Renesas provides application notes and safety manuals to support certification efforts. The R5F51103AGFL#30's −40 to +105°C rating further supports reliability in safety-critical industrial environments.

How many A/D converter channels and what resolution does the R5F51103AGFL#30 provide?

The R5F51103AGFL#30 integrates a 12-bit successive-approximation A/D converter (S12AD) with 10 input channels (AN000–AN009), as confirmed for the 48-pin package variant in Table 1.2 of the datasheet. It achieves a minimum conversion time of 1.0 µs at 32 MHz ADCLK and supports scan modes, double-trigger functionality for motor control redundancy, and external trigger input (ADTRG0#). The analog domain uses dedicated AVCC0/AVSS0 supplies and reference pins (VREFH0/VREFL0), allowing precision measurements in noisy industrial settings. This A/D capability is integral to the R5F51103AGFL#30's role in sensor interfacing and closed-loop control.

What communication interfaces are available on the R5F51103AGFL#30?

The R5F51103AGFL#30 provides three primary serial interfaces: two Serial Communications Interfaces (SCI1 and SCI5) supporting asynchronous UART, clock-synchronous, simple I²C, and simple SPI modes; one I²C bus interface (RIIC) compliant with SMBus and fast-mode (400 kbps); and one Serial Peripheral Interface (RSPI) supporting master/slave operation at up to 16 Mbps. All interfaces feature configurable data length (8–32 bits), LSB/MSB-first selection, and hardware flow control where applicable. These interfaces enable flexible connectivity in industrial networks - for example, SCI1 for Modbus RTU, RIIC for sensor hub communication, and RSPI for high-speed display or memory expansion - all within the R5F51103AGFL#30's compact 48-pin footprint.