Renesas R7F101GFG2DFP#AA1

Overview

R7F101GFG2DFP#AA1 from Renesas is a 44-pin LQFP-packaged RL78/G24 16-bit microcontroller with 128 KB code flash, 4 KB data flash, and 12 KB RAM, operating at up to 48 MHz with 50 µA/MHz active current. It integrates FAA for motor control acceleration, dual 12-bit ADCs with simultaneous sampling, DALI-2 interface, and 16-bit complementary PWM timers KB30–KB32 for digital power supply applications.

For engineers reviewing the R7F101GFG2DFP#AA1 datasheet, R7F101GFG2DFP#AA1 pinout, R7F101GFG2DFP#AA1 application, or R7F101GFG2DFP#AA1 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, –40°C to +85°C industrial temperature grade, integrated DALI-2 and PMBus/SMBus support, and hardware-based flexible application accelerator (FAA) for real-time motor and lighting control loops.

Technical Context

The R7F101GFG2DFP#AA1 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.02083 µs (48 MHz) to 30.5 µs (32.768 kHz). Its FAA core delivers dedicated 32-bit signed multiply/accumulate operations with 33-bit internal precision and configurable limit functions for closed-loop control.

Peripheral integration includes six I²C/Simplified I²C interfaces, three UART/LIN channels, two to six simplified SPIs, one DALI interface, and a 32-bit interval timer with 8-/16-/32-bit counter modes. The 16-bit KB-series timers provide 651-ps average PWM resolution via dithering at 96 MHz, enabling high-fidelity PFC and multi-phase motor drive timing.

Key Specifications

Pinout & Package

Package: 44-pin plastic LQFP (10 × 10 mm, 0.80-mm pitch), lead-free, RoHS-compliant, tray packaging (#AA1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F101GFE2DFP#AA1, the R7F101GFG2DFP#AA1 provides 64 KB more code flash for complex lighting stacks or field-upgradable firmware; versus R7F101GGG2DFB#AA1, it trades 4 pins and one DALI channel for LQFP-0.8 mm pitch compatibility and lower assembly cost.

Availability

R7F101GFG2DFP#AA1 is available at Aetrix Electronics and suitable for LED lighting control, digital power supply monitoring, industrial motor drive, and smart building sensor node applications requiring stable component supply across automotive-grade extended temperature ranges and long product lifecycles.

Supply support for R7F101GFG2DFP#AA1 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 global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RL78/G24 product line targets high-efficiency, low-power motor control and digital lighting applications, integrating specialized peripherals like DALI-2, FAA, and high-resolution PWM timers to reduce system-level BOM and software development effort.

FAQ

What is the maximum operating frequency of the R7F101GFG2DFP#AA1?

The R7F101GFG2DFP#AA1 operates at a maximum CPU frequency of 48 MHz using the high-speed on-chip oscillator or PLL clock. This yields a minimum instruction execution time of 0.02083 µs, enabling real-time response in motor control and lighting applications where deterministic timing is critical. The device also supports ultra-low-speed operation at 32.768 kHz for low-power RTC and wake-up functions.

Does the R7F101GFG2DFP#AA1 support DALI-2 communication natively?

Yes, the R7F101GFG2DFP#AA1 includes native DALI-2 physical layer support on pins P00 (DALITxD0) and P01 (DALIRxD0), eliminating the need for an external DALI transceiver IC. The integrated hardware handles signal level translation, timing compliance, and bus arbitration per IEC 62386-102, allowing direct implementation of DALI-2 master or slave nodes in LED driver designs.

How much flash memory does the R7F101GFG2DFP#AA1 have, and is it secure?

The R7F101GFG2DFP#AA1 contains 128 KB of code flash memory with built-in security features including prohibition of block erase and rewriting for protected regions. It supports on-chip debugging and self-programming with boot swapping and flash shield window functionality, enabling secure firmware updates and intellectual property protection in production environments.

What analog capabilities does the R7F101GFG2DFP#AA1 offer for sensor interfacing?

The R7F101GFG2DFP#AA1 provides a 12-bit A/D converter with up to 23 input channels, including two independent sample-and-hold circuits for simultaneous sampling. It also integrates a programmable gain amplifier (PGA), four comparators with selectable reference sources (including DAC output), and an internal temperature sensor and 1.48 V reference voltage - all enabling high-accuracy sensor signal conditioning without external components.

Can the R7F101GFG2DFP#AA1 generate high-resolution PWM for motor control?

Yes, the R7F101GFG2DFP#AA1 includes three 16-bit complementary PWM timers (KB30, KB31, KB32) capable of generating PWM waveforms with 651-ps average resolution when dithering is applied at 96 MHz. This enables precise gate timing for IGBT/MOSFET drivers in digital power supplies and smooth torque control in BLDC motor applications.