Renesas R5F100FDAFP#10

Overview

R5F100FDAFP#10 from Renesas is a 44-pin LQFP-44, 16-bit RL78/G13 microcontroller with 96 KB flash, 8 KB data flash, 8 KB RAM, 10-bit ADC (16 channels), and real-time clock - designed for ultra-low-power industrial control and sensor interface applications operating from 1.6 V to 5.5 V.

For engineers reviewing the R5F100FDAFP#10 datasheet, R5F100FDAFP#10 pinout, R5F100FDAFP#10 application, or R5F100FDAFP#10 equivalent, key selection criteria include its 0.57 μA STOP-mode current, 32 MHz max CPU speed, integrated LIN-capable UART, and industrial-grade −40°C to +85°C operation with LVD and POR.

Technical Context

The R5F100FDAFP#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates DMA (2 channels), 16×16-bit multiply/accumulate, and background data flash rewriting (BGO).

Its peripheral set includes up to 16× 16-bit timers, 1× real-time clock with calendar/alarm, 1× watchdog timer, 3× I²C/Simplified I²C interfaces, 2× UART/LIN, and 2× CSI (SPI-compatible) channels - all configurable under single-supply 1.6–5.5 V operation.

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100FDAFP#10, R5F101FDAFP#10 removes data flash to reduce cost and die size but retains full functional compatibility for fixed-code deployments, while R5F100FGAFP#10 provides 33% more flash and 50% more RAM - enabling richer HMI or dual-application partitioning without changing PCB layout.

Availability

R5F100FDAFP#10 is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and building control applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F100FDAFP#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G13 product line delivers true low-power performance for general-purpose embedded control - optimized for cost-sensitive, battery-operated, and thermally constrained applications where efficiency and integration outweigh raw compute throughput.

FAQ

What is the maximum operating frequency of the R5F100FDAFP#10?

The R5F100FDAFP#10 supports a maximum CPU clock frequency of 32 MHz using its high-accuracy on-chip oscillator. This timing is validated across the full industrial temperature range (−40°C to +85°C) with ±1.0% accuracy at VDD = 1.8–5.5 V. The device also supports lower-speed subsystem clocks (e.g., 32.768 kHz) for ultra-low-power RTC operation, with instruction execution time scaling accordingly.

Does the R5F100FDAFP#10 include an integrated analog-to-digital converter?

Yes, the R5F100FDAFP#10 includes a 10-bit successive-approximation ADC with 16 analog input channels. It features an internal 1.45 V reference voltage and integrated temperature sensor - both selectable only in high-speed (HS) mode. The ADC operates across the full supply range (1.6–5.5 V) and supports scan mode, grouping, and hardware trigger synchronization with timers.

What debug interface does the R5F100FDAFP#10 support?

The R5F100FDAFP#10 supports on-chip debugging via the dedicated TOOLRxD/TOOLTxD pins (P11/P12), compatible with Renesas E2 emulator and CS+ IDE. It includes full breakpoint, watchpoint, and memory access capabilities without requiring external JTAG hardware. Debug functionality remains available even in low-power STOP mode when configured for wake-up via debug request.

Can the R5F100FDAFP#10 operate from a 1.8 V supply?

Yes, the R5F100FDAFP#10 is fully specified to operate from 1.6 V to 5.5 V, including 1.8 V. At 1.8 V, it supports up to 16 MHz CPU operation (derated from 32 MHz), maintains full peripheral functionality, and achieves 66 μA/MHz active current. The on-chip LVD can be configured to generate reset or interrupt at 1.7 V threshold, ensuring reliable brown-out protection.

Is the R5F100FDAFP#10 pin-compatible with other RL78/G13 variants in LQFP-44?

Yes, the R5F100FDAFP#10 is pin-compatible with all RL78/G13 devices in the 44-pin LQFP package (e.g., R5F100FAAFP#10, R5F100FGAFP#10), sharing identical pin count, mechanical footprint, and I/O assignment. Memory size and data flash presence differ between variants, but PCB layout, power delivery, and signal routing remain interchangeable - enabling scalable design reuse across performance tiers.