Renesas R5F51101AGFL#30

Overview

R5F51101AGFL#30 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 32 KB flash, 10 KB SRAM, 12-bit A/D converter with 10 channels, RTC, and dual SCI interfaces - deployed in industrial sensor nodes requiring low-power operation and deterministic real-time control.

For engineers reviewing the R5F51101AGFL#30 datasheet, R5F51101AGFL#30 pinout, R5F51101AGFL#30 application, or R5F51101AGFL#30 equivalent, key selection criteria include its 48-pin LFQFP package, −40 to +105°C extended temperature grade, integrated IEC 60730 safety functions, and support for software standby mode with 4.8 μs wake-up time.

Technical Context

The R5F51101AGFL#30 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle instruction execution. Its on-chip clock system includes a 32 MHz ±1% high-speed oscillator, sub-clock (32.768 kHz) for RTC, and dedicated IWDT oscillator (15 kHz).

Peripheral integration centers on deterministic timing: MTU2 provides four 16-bit timer channels with input capture/output compare and phase counting; CMT delivers two 16-bit match timers; and the DTC supports chain transfer triggered by 65 interrupt sources - all synchronized to PCLK up to 32 MHz.

Key Specifications

Pinout & Package

Package: PLQP0048KB-A, 48-pin LFQFP, 7 × 7 mm body, 0.5 mm pitch, exposed pad not specified - compatible with standard reflow profiles and mid-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51101ADFL#30, the R5F51101AGFL#30 adds guaranteed operation up to +105°C and IEC 60730 support; compared with R5F51103AGFL#30, it trades 32 KB flash capacity for lower cost and power in resource-constrained sensor endpoints.

Availability

R5F51101AGFL#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, appliance motor control units, and energy meter interface modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51101AGFL#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 automotive, industrial, and IoT markets.

The RX110 Group, including R5F51101AGFL#30, is engineered for cost-sensitive, low-power embedded control applications demanding real-time performance, functional safety support, and compact footprint - especially in white goods, building automation, and portable instrumentation.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51101AGFL#30?

The R5F51101AGFL#30 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. This is achieved through its 32-bit RX CPU core with five-stage pipeline, single-cycle instruction execution, and 64-bit accumulator for efficient arithmetic. The R5F51101AGFL#30 maintains this performance across its full voltage range (1.8–3.6 V) and temperature range (−40 to +105°C), making it suitable for deterministic real-time applications.

Does the R5F51101AGFL#30 support IEC 60730 functional safety compliance?

Yes, the R5F51101AGFL#30 integrates hardware features required for Class B IEC 60730 compliance, including a clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated 15 kHz oscillator, and RAM test assist functions. These capabilities reduce firmware validation effort and eliminate the need for external safety monitors in appliance and industrial control applications where the R5F51101AGFL#30 serves as the primary controller.

What are the memory resources available on the R5F51101AGFL#30?

The R5F51101AGFL#30 includes 32 KB of on-chip flash memory with zero wait states at 32 MHz, and 10 KB of SRAM also operating at full CPU speed. Both memories support read-while-write operations, enabling robust firmware updates and real-time data buffering. The R5F51101AGFL#30 flash is programmable at 1.8 V, allowing in-system programming under low-voltage conditions without external high-voltage supplies.

Which communication interfaces does the R5F51101AGFL#30 provide?

The R5F51101AGFL#30 provides SCI ×2 (supporting asynchronous, 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 are accessible via the 48-pin LFQFP package and configurable through the multi-function pin controller (MPC) to optimize PCB routing.

What low-power modes does the R5F51101AGFL#30 support, and what is its lowest current consumption?

The R5F51101AGFL#30 supports three low-power modes: sleep, deep sleep, and software standby. In software standby mode, it achieves 0.35 μA typical supply current while retaining SRAM content and enabling wake-up via RTC alarm, external interrupt, or IWDT timeout. Recovery time from this state is 4.8 μs - a critical specification for battery-powered R5F51101AGFL#30 applications requiring rapid responsiveness after extended idle periods.