Renesas R5F51101ADFM#10

Overview

R5F51101ADFM#10 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, 14-channel 12-bit ADC with 1.0 µs conversion time, RTC, and dual SCI interfaces - deployed in industrial sensor nodes requiring low-power, deterministic real-time control.

For engineers reviewing the R5F51101ADFM#10 datasheet, R5F51101ADFM#10 pinout, R5F51101ADFM#10 application, or R5F51101ADFM#10 equivalent, key selection criteria include its 64-pin LFQFP package (PLQP0064KB-A), −40°C to +85°C temperature grade, integrated IEC 60730 safety functions, and support for software standby mode with 4.8 µs wake-up.

Technical Context

The R5F51101ADFM#10 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 high-speed (32 MHz ±1%), sub-clock (32.768 kHz), and IWDT-dedicated (15 kHz) oscillators, all managed via the Clock Frequency Accuracy Measurement Circuit (CAC).

Peripheral integration centers on deterministic real-time operation: MTU2 provides four 16-bit timer channels with input capture, phase counting, and A/D trigger generation; DTC supports chain transfer across four interrupt sources; and RIIC/RSPI/SCI peripherals operate independently under PCLK-synchronized timing with configurable bit widths up to 32 bits.

Key Specifications

Pinout & Package

Package: PLQP0064KB-A - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51103ADFM#30, the R5F51101ADFM#10 trades flash capacity for cost-sensitive deployment where firmware size is fixed and unchanging; versus R5F51101ADFK#30, it offers higher I/O density in a smaller footprint but requires finer-pitch SMT assembly.

Availability

R5F51101ADFM#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, appliance motor control systems, and energy metering modules requiring stable component supply across extended product lifecycles.

Supply support for R5F51101ADFM#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.

The RX110 Group, including the R5F51101ADFM#10, is engineered for cost-sensitive, low-power embedded control applications demanding IEC 60730 compliance, deterministic real-time response, and compact footprint.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51101ADFM#10?

The R5F51101ADFM#10 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS (Dhrystone MIPS) performance. Its RX CPU core features a five-stage pipeline, single-cycle instruction execution for basic operations, and a 64-bit accumulator for 32×32-bit multiplication results - enabling efficient signal processing and real-time control tasks within the R5F51101ADFM#10's resource constraints.

Does the R5F51101ADFM#10 support IEC 60730 functional safety requirements?

Yes, the R5F51101ADFM#10 integrates hardware features required for Class B compliance under IEC 60730, including a Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist logic, and dual-level voltage detection (LVDA). These capabilities are documented in the R01DS0202EJ0120 datasheet and enable self-test routines without external components in the R5F51101ADFM#10 design.

What package type and pin count does the R5F51101ADFM#10 use?

The R5F51101ADFM#10 uses the PLQP0064KB-A package: a 64-pin Low-Profile Quad Flat Package with 10 × 10 mm body size and 0.5 mm pin pitch. This package is RoHS-compliant, lead-free, and optimized for automated SMT assembly in space-constrained industrial control applications where the R5F51101ADFM#10 is commonly deployed.

How many analog input channels and what ADC resolution does the R5F51101ADFM#10 provide?

The R5F51101ADFM#10 integrates a 12-bit successive approximation register (SAR) A/D converter with up to 14 input channels (AN000–AN015). It achieves a minimum conversion time of 1.0 µs at 32 MHz ADCLK, supports scan and double-trigger modes, and includes dedicated analog supply (AVCC0/AVSS0) and reference pins (VREFH0/VREFL0) - all confirmed in the R5F51101ADFM#10 datasheet section 1.1 and Table 1.2.

What communication interfaces are available on the R5F51101ADFM#10?

The R5F51101ADFM#10 provides SCI × 2 (SCI1 and SCI5 supporting asynchronous, clock-synchronous, I²C, and SPI modes), RIIC × 1 (I²C bus interface up to 400 kbps), and RSPI × 1 (serial peripheral interface up to 16 Mbps). Pin multiplexing via the Multi-function Pin Controller (MPC) allows shared use of pins across interfaces - a capability verified in the R5F51101ADFM#10 pin function table (Table 1.4) and block diagram (Figure 1.2).