Renesas R5F101GEDFB#X0

Overview

R5F101GEDFB#X0 from Renesas is a 48-pin LFQFP-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, and 4 KB RAM, operating at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and integrated real-time clock - deployed in battery-powered industrial sensors and smart metering endpoints.

For engineers reviewing the R5F101GEDFB#X0 datasheet, R5F101GEDFB#X0 pinout, R5F101GEDFB#X0 application, or R5F101GEDFB#X0 equivalent, key selection criteria include its 48-pin LFQFP-0.5mm package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for SNOOZE mode wake-up via serial interface or timer events.

Technical Context

The R5F101GEDFB#X0 implements the RL78 CPU core with 3-stage pipeline, supporting variable instruction execution time (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz) and 1 MB address space. It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for RTC/WDT.

Its peripheral set includes 8× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC with alarm/correction, 2–4 channel DMA, UART/LIN, CSI, I²C, and 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all accessible under single 1.6–5.5 V supply with on-chip POR and 14-level LVD.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101GEDFB#X0, R5F100GEDFB#X0 provides essential data flash for configuration storage at marginally higher quiescent current, while RL78/G14 R5F104GEGxFB#X0 delivers architectural headroom for protocol stack expansion and richer HMI support - both require PCB layout review due to differing flash initialization requirements.

Availability

R5F101GEDFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.

Supply support for R5F101GEDFB#X0 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 enterprise markets.

The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, peripheral richness, and energy efficiency for battery-operated and mains-powered equipment.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F101GEDFB#X0?

The R5F101GEDFB#X0 operates at up to 32 MHz with a measured performance of 41 DMIPS. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and is validated under standard test conditions (VDD = 3.3 V, TA = 25°C). The R5F101GEDFB#X0 achieves this without external crystal dependency, using the factory-trimmed high-speed on-chip oscillator.

Does the R5F101GEDFB#X0 include on-chip data flash memory?

No, the R5F101GEDFB#X0 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 R5F101x series, which omits data flash to reduce cost and silicon area. The R5F101GEDFB#X0 provides 64 KB of code flash and 4 KB of RAM only - persistent data storage requires external EEPROM or FRAM.

What package type and pin count does the R5F101GEDFB#X0 use?

The R5F101GEDFB#X0 uses a 48-pin LFQFP package with 0.5 mm pitch, measuring 7 mm × 7 mm. The "FB" suffix in the part number explicitly denotes this LFQFP variant, and the "#X0" indicates embossed tape packaging. This package supports reflow soldering and is compatible with standard automated assembly processes.

What is the operating temperature range specified for the R5F101GEDFB#X0?

The R5F101GEDFB#X0 is rated for industrial operation from –40°C to +85°C. This is confirmed by the "D" suffix in its full ordering code (R5F101GEDFB#X0), which designates the industrial temperature grade per Renesas' RL78/G13 part numbering system - distinct from "A" (consumer) and "G" (+105°C industrial) variants.

Which serial communication interfaces are supported by the R5F101GEDFB#X0?

The R5F101GEDFB#X0 supports UART/LIN (2–4 channels), CSI (2–8 channels, SPI-compatible), and I²C/Simplified I²C (3–10 channels). All are implemented in hardware with independent baud rate generators and FIFO support. The R5F101GEDFB#X0 does not include CAN or USB interfaces - those require RL78/G14 or higher families.