Renesas R5F101GCDFB#30

Overview

R5F101GCDFB#30 from Renesas is a 48-pin LFQFP, 0.5-mm pitch, industrial-grade (−40°C to +85°C) 16-bit RL78/G13 microcontroller with 96 KB flash, 8 KB data flash, 8 KB RAM, 32 MHz max CPU speed, and integrated peripherals including 10-bit ADC (26 channels), RTC, UART, I²C, and SPI. It targets battery-powered industrial sensors and low-power HMI control units.

For engineers reviewing the R5F101GCDFB#30 datasheet, R5F101GCDFB#30 pinout, R5F101GCDFB#30 application, or R5F101GCDFB#30 equivalent, key selection criteria include its 96 KB code flash with self-programming support, 8 KB data flash with background operation (BGO), ultra-low power HALT/STOP/SNOOZE modes, 10-bit ADC with internal temperature sensor, and 48-pin LFQFP package for space-constrained PCB layouts.

Technical Context

The R5F101GCDFB#30 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline-delivering 41 DMIPS at 32 MHz while supporting variable instruction execution time (0.03125 μs to 30.5 μs). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), 14-level LVD, and hardware DMA controller with 4 channels.

Its memory subsystem includes 96 KB code flash (1 KB block size, security-protected erase/write), 8 KB data flash (1M rewrite cycles, BGO enabled), and 8 KB SRAM. Peripheral integration covers 16× 16-bit timers, 1× real-time clock with calendar/alarm, 1× watchdog timer, and up to 26-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor.

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 R5F100GCDFB#30, the R5F101GCDFB#30 removes data flash but retains identical code flash, RAM, peripherals, and ultra-low-power features-making it optimal for cost-sensitive, non-parameter-logging applications. Versus R5F101GCDFA#30, the #30 variant offers superior PCB area efficiency and thermal performance in the smaller 48-pin LFQFP package.

Availability

R5F101GCDFB#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, HMI panels, and energy meter subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F101GCDFB#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 automotive, industrial, and IoT markets.

The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer devices requiring high integration, robust peripheral sets, and extended longevity.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F101GCDFB#30?

The R5F101GCDFB#30 operates at up to 32 MHz with a measured performance of 41 DMIPS. This value is achieved using the high-speed on-chip oscillator at 32 MHz and reflects the RL78 CPU core's 3-stage pipeline efficiency. The R5F101GCDFB#30 maintains this performance across its full 1.6–5.5 V supply range and −40°C to +85°C temperature grade.

Does the R5F101GCDFB#30 include data flash memory, and what are its key characteristics?

No, the R5F101GCDFB#30 does not include data flash memory. Unlike the R5F100x series (e.g., R5F100GCDFB#30), the "101" prefix explicitly denotes absence of data flash per Renesas' part numbering convention. The R5F101GCDFB#30 provides 96 KB code flash only, with full self-programming capability-including boot swap and flash shield window-but no dedicated data flash array.

What package type and pin count does the R5F101GCDFB#30 use, and is it RoHS-compliant?

The R5F101GCDFB#30 uses a 48-pin LFQFP package (7 mm × 7 mm, 0.5 mm pitch), identified by the "FB" suffix in the part number. It is RoHS-compliant and rated for moisture sensitivity level 3. This package provides optimal thermal dissipation and PCB area efficiency for industrial control and sensor applications where space and reliability are critical.

Can the R5F101GCDFB#30 operate from a 1.8 V supply, and what peripherals remain functional at that voltage?

Yes, the R5F101GCDFB#30 supports operation from 1.8 V (within its 1.6–5.5 V range). At 1.8 V, the 10-bit ADC (with internal 1.45 V reference), RTC, 16-bit timers, UART, I²C, and SPI all remain fully functional. However, the high-speed on-chip oscillator accuracy degrades slightly outside 2.7–5.5 V, so external clock or lower-frequency internal settings are recommended for precision timing at 1.8 V.

How many analog input channels does the R5F101GCDFB#30 support, and does it include an internal temperature sensor?

The R5F101GCDFB#30 supports up to 26 analog input channels (ANI0–ANI25) and includes an integrated temperature sensor usable in HS (high-speed main) mode. The sensor output connects to ANI25 and is factory-calibrated; combined with the internal 1.45 V reference, it enables accurate die temperature measurement without external components-directly supported in the R5F101GCDFB#30's hardware design.