Renesas R5F101FEAFP#30

Overview

R5F101FEAFP#30 from Renesas is a 30-pin, 48 KB flash, 4 KB data flash, 4 KB RAM RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 1.6–5.5 V supply, and integrated 32 MHz high-accuracy on-chip oscillator (±1.0 %). It targets battery-powered industrial sensors and smart metering interfaces requiring long runtime and reliable real-time control.

For engineers reviewing the R5F101FEAFP#30 datasheet, R5F101FEAFP#30 pinout, R5F101FEAFP#30 application, or R5F101FEAFP#30 equivalent, key selection criteria include its LQFP-30 package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for UART/LIN, I²C, and 10-bit ADC with internal temperature sensor.

Technical Context

The R5F101FEAFP#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and features an address space of 1 MB with four register banks. Its power management includes HALT, STOP, and SNOOZE modes, plus on-chip POR and 14-level LVD with interrupt/reset capability.

Peripheral integration includes up to 16 channels of 16-bit timer, one 12-bit interval timer, one calendar-based real-time clock (RTC) with alarm and correction, one watchdog timer, and a 10-bit A/D converter with up to 26 analog inputs, internal 1.45 V reference, and temperature sensor - all operating across the full 1.6–5.5 V supply range.

Key Specifications

Pinout & Package

Package: 30-pin LQFP (7.62 mm × 7.62 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (D suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100FEAFP#30, the R5F101FEAFP#30 omits data flash to reduce cost and die size while retaining identical code flash, RAM, and peripheral set - making it optimal for fixed-parameter firmware. Compared with R5F101FEAFP#50, the #30 variant offers tray packaging for easier handling in lab and pilot runs.

Availability

R5F101FEAFP#30 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply, long-term lifecycle support, and industrial-temperature reliability.

Supply support for R5F101FEAFP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The RL78/G13 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency.

FAQ

What is the maximum operating frequency of the R5F101FEAFP#30?

The R5F101FEAFP#30 supports up to 32 MHz operation using its on-chip high-speed oscillator, delivering 41 DMIPS performance. The minimum instruction execution time is 0.03125 μs at this frequency, and the oscillator maintains ±1.0 % accuracy across -40°C to +85°C ambient temperature and 1.8–5.5 V supply.

Does the R5F101FEAFP#30 include on-chip data flash memory?

No, the R5F101FEAFP#30 does not include on-chip data flash memory. As indicated by the "101" in its part number per Renesas' naming convention, it belongs to the data-flash-free variant of the RL78/G13 family. It provides 48 KB of code flash and 4 KB of RAM, but parameter storage must be implemented in code flash or external memory.

What package type and pin count does the R5F101FEAFP#30 use?

The R5F101FEAFP#30 uses a 30-pin LQFP package (7.62 mm × 7.62 mm, 0.65 mm pitch), designated by the "AFP" suffix. This package is RoHS-compliant and rated for industrial temperature range (-40°C to +85°C), matching the "D" application grade in Renesas' ordering nomenclature.

Can the R5F101FEAFP#30 operate from a 1.8 V supply?

Yes, the R5F101FEAFP#30 operates across a 1.6 V to 5.5 V supply range. At 1.8 V, it supports reduced maximum frequency (typically ≤ 8 MHz per datasheet derating), full peripheral functionality including 10-bit ADC (with internal 1.45 V reference), and ultra-low-power STOP mode - enabling compatibility with single-cell Li-ion or two-cell alkaline systems.

Which communication interfaces are supported by the R5F101FEAFP#30?

The R5F101FEAFP#30 integrates UART/LIN (up to 4 channels), I²C/Simplified I²C (up to 10 channels), and CSI (SPI-compatible serial interface, up to 8 channels). All are accessible via multiplexed GPIO pins on its 30-pin LQFP package, with hardware flow control and automatic LIN header detection supported in UART mode.