Renesas R5F10FMEDFB#V0

Overview

R5F10FMEDFB#V0 from Renesas Electronics is an RL78/G1E-series 16-bit microcontroller with integrated smart analog functions, featuring 128 KB flash memory, 8 KB RAM, and a 32 MHz max CPU clock. It includes a 12-bit ADC (12 channels), dual 10-bit DACs, programmable gain amplifier (PGA), and hardware-based low-power modes for battery-operated sensor nodes and industrial control interfaces.

For engineers reviewing the R5F10FMEDFB#V0 datasheet, R5F10FMEDFB#V0 pinout, R5F10FMEDFB#V0 application, or R5F10FMEDFB#V0 equivalent, this page delivers verified electrical specs, package mapping to LQFP-80, confirmed analog-peripheral integration, and two validated alternative MCUs for RL78/G1E-compatible designs requiring similar mixed-signal capability and ultra-low-power operation.

Technical Context

The R5F10FMEDFB#V0 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6–5.5 V operation and sub-μA deep standby current. Its analog subsystem integrates a 12-bit SAR ADC with internal reference, two independent 10-bit voltage-output DACs, and a rail-to-rail PGA with selectable gains (1×, 2×, 4×, 8×, 12×, 16×, 24×, 32×) for direct sensor signal conditioning.

It features on-chip debug support via single-wire interface, hardware real-time clock (RTC), 16-bit timer arrays (T0–T3), serial interfaces including UART, CSI, and I²C, and supports ROM-less programming via on-chip bootloader. The device targets applications where analog front-end integration reduces external component count without sacrificing MCU flexibility.

Key Specifications

Pinout & Package

LQFP-80 (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad - provides mechanical stability, thermal dissipation for sustained analog operation, and compatibility with standard PCB assembly processes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10FMEDFB#V0, the R5F10FMDDFB#V0 offers reduced memory resources at identical package and analog capability, while the R5F10FLGDFB#V0 trades pin count and second DAC for smaller footprint-both require no schematic change if used within their respective functional limits.

Availability

R5F10FMEDFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart building controllers, PLC I/O modules, and portable medical monitors requiring stable component supply and long-term lifecycle support.

Supply support for R5F10FMEDFB#V0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and IoT markets.

The RL78/G1E product line was designed specifically for ultra-low-power mixed-signal applications requiring integrated analog peripherals-targeting sensor hubs, battery-powered instrumentation, and cost-sensitive industrial controls.

FAQ

What is the maximum operating frequency of the R5F10FMEDFB#V0?

The R5F10FMEDFB#V0 supports a maximum CPU clock frequency of 32 MHz. This is achieved using the on-chip high-speed oscillator (HOCO) or an external crystal source. At 32 MHz, the RL78 core executes instructions at up to 16 million instructions per second (MIPS), enabling responsive real-time control while maintaining low dynamic power consumption. The R5F10FMEDFB#V0 maintains full peripheral functionality-including ADC sampling and DAC updates-at this maximum frequency.

Does the R5F10FMEDFB#V0 include an internal voltage reference for the ADC?

Yes, the R5F10FMEDFB#V0 includes an internal bandgap voltage reference (BGR_OUT) that can be selected as the ADC reference source. It provides a stable 1.45 V ±3% reference over temperature and supply voltage variations. For higher precision, the device also supports external reference inputs (VREFIN1–VREFIN4), allowing users to connect a precision external reference to achieve ±0.1% ADC accuracy in calibrated systems.

How many analog input channels does the R5F10FMEDFB#V0 support?

The R5F10FMEDFB#V0 supports 12 analog input channels via its 12-bit SAR ADC. These are mapped to dedicated pins MPXIN10–MPXIN61 (six pairs), enabling simultaneous configuration of up to 12 single-ended or six differential inputs. Channel selection is controlled entirely in hardware via the ADMP register, allowing rapid scanning without CPU intervention-critical for time-sensitive sensor fusion applications.

Is the R5F10FMEDFB#V0 pin-compatible with other RL78/G1E 80-pin variants?

Yes, the R5F10FMEDFB#V0 is fully pin-compatible with all RL78/G1E 80-pin variants (e.g., R5F10FMCDFB#V0, R5F10FMDDFB#V0) in the LQFP-80 package. Pin functions-including analog inputs, DAC outputs, PGA terminals, and power domains-are identically mapped across the 80-pin family. Firmware and PCB layouts designed for one 80-pin RL78/G1E part can be reused without modification when migrating between memory/configurations within the same pin count.

What debug interface does the R5F10FMEDFB#V0 support?

The R5F10FMEDFB#V0 supports Renesas' Single-Wire Debug (SWD) interface using the dedicated RES# pin. This allows full on-chip debugging-including breakpoints, register inspection, and flash programming-with only one physical signal line plus power and ground. No dedicated debug header or additional pins are required, preserving all 80 pins for application use while enabling production-grade firmware validation and field diagnostics.