Renesas R5F101EGDNA#U0

Overview

R5F101EGDNA#U0 from Renesas is a 40-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, 2 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for battery-powered industrial sensor nodes and smart metering interfaces.

For engineers reviewing the R5F101EGDNA#U0 datasheet, R5F101EGDNA#U0 pinout, R5F101EGDNA#U0 application, or R5F101EGDNA#U0 equivalent, key selection criteria include its 40-pin 6×6 mm HWQFN-40 package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for 16-channel 10-bit ADC, dual UART/LIN, and real-time clock with calendar function.

Technical Context

The R5F101EGDNA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates a 12-bit interval timer, 1-channel real-time clock with 99-year calendar and alarm, and watchdog timer operated by dedicated low-speed oscillator.

Power management includes HALT, STOP, and SNOOZE modes; voltage detection (LVD) with 14 selectable levels; and on-chip POR. Peripheral set comprises up to 16-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 2–4 channel DMA, 16-bit × 16-bit multiplier/accumulator, and serial interfaces including CSI (SPI-compatible), UART/LIN, and I²C.

Key Specifications

Pinout & Package

Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), moisture sensitivity level (MSL) 3, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F100EGDNA#U0, the R5F101EGDNA#U0 trades data flash for lower cost and smaller die area-ideal for fixed-function firmware. Versus RL78/G14, it offers lower power and smaller footprint at the expense of memory and peripheral headroom.

Availability

R5F101EGDNA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering interfaces, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F101EGDNA#U0 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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer devices requiring robust analog integration and long operational lifetime.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F101EGDNA#U0?

The R5F101EGDNA#U0 operates up to 32 MHz using its high-speed on-chip oscillator (±1.0% accuracy). At this frequency, active current is 66 μA per MHz - resulting in ~2.1 mA total at 32 MHz with all peripherals disabled. In STOP mode with only RTC and LVD active, current drops to 0.57 μA, enabling decade-scale battery operation in intermittent-sensing applications.

Does the R5F101EGDNA#U0 include on-chip data flash memory?

No, the R5F101EGDNA#U0 does not include on-chip data flash memory. The "101" in the part number explicitly denotes the R5F101x series, which omits data flash to reduce cost and die size. This distinguishes it from the R5F100x series (e.g., R5F100EGDNA#U0), which provides 4 KB of data flash. Firmware must use code flash sectors or external EEPROM for nonvolatile parameter storage.

What package type and pin count does the R5F101EGDNA#U0 use?

The R5F101EGDNA#U0 uses a 40-pin HWQFN (Heat Sink Wettable Flank Quad Flat No-lead) package measuring 6 mm × 6 mm with 0.5 mm pitch. Its #U0 suffix confirms tray packaging for automated assembly. This compact, thermally efficient package supports high-density PCB layouts while maintaining reliable reflow soldering yield and thermal dissipation for industrial ambient conditions.

Which serial communication interfaces are supported by the R5F101EGDNA#U0?

The R5F101EGDNA#U0 supports three serial interface types: CSI (SPI-compatible master/slave), UART/LIN (with built-in LIN 2.2A protocol support), and I²C/Simplified I²C. Specifically, it includes CSI × 2–8 channels, UART/LIN × 2–4 channels, and I²C × 3–10 channels - configurable per pin mapping. All operate across the full 1.6–5.5 V supply range without level shifters.

What is the operating temperature range specified for the R5F101EGDNA#U0?

The R5F101EGDNA#U0 is rated for industrial operation from –40°C to +85°C, indicated by the "D" suffix in the part number. This qualifies it for deployment in factory automation controllers, outdoor utility meters, and HVAC systems where extended thermal stability is required. It does not support the extended –40°C to +105°C range (G-grade) offered by some RL78/G13 variants.