Renesas R7F101GGG2DFB#AA1

Overview

R7F101GGG2DFB#AA1 from Renesas is a 48-pin LFQFP-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 and lighting applications.

For engineers reviewing the R7F101GGG2DFB#AA1 datasheet, R7F101GGG2DFB#AA1 pinout, R7F101GGG2DFB#AA1 application, or R7F101GGG2DFB#AA1 equivalent, key selection criteria include its 48-MHz real-time performance in ultra-low-power operation, integrated DALI-2 transceiver capability, 651-ps PWM resolution via dithering, and support for PMBus/SMBus communication in compact industrial lighting and motor control designs.

Technical Context

The R7F101GGG2DFB#AA1 implements a CISC-based RL78 CPU core with 3-stage pipeline and variable instruction timing (0.02083 µs at 48 MHz, 30.5 µs at 32.768 kHz), paired with a dedicated Flexible Application Accelerator (FAA) core supporting 32-bit signed multiply/accumulate and limit operations with 33-bit internal precision. Its memory subsystem includes 128 KB code flash with block erase protection and background data flash rewriting (1M rewrite cycles).

Peripheral integration centers on high-resolution timing and analog control: six 16-bit timers (TAU, RD2, RG2, RX, RJ, KB30–KB32), dual 12-bit ADCs with two independent sample-and-hold circuits, four comparators with selectable D/A or external reference, and a programmable gain amplifier - all coordinated via Event Link Controller (ELC) for deterministic, low-latency signal chain execution in closed-loop motor and power systems.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.50-mm pitch), lead-free, RoHS-compliant, with exposed thermal pad recommended for PCB grounding.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F101GGE2DFB#AA1, the R7F101GGG2DFB#AA1 adds 64 KB of code flash for complex DALI-2 stack + OTA updates, while versus RL78/G23, it delivers FAA-accelerated math, integrated DALI PHY, and KB-series timers enabling single-chip digital power solutions without external components.

Availability

R7F101GGG2DFB#AA1 is available at Aetrix Electronics and suitable for LED lighting control, digital power supply design, BLDC motor drives, and industrial sensor nodes requiring stable component supply across automotive-grade temperature ranges and long product lifecycles.

Supply support for R7F101GGG2DFB#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, with over 40 years of MCU innovation.

The RL78/G24 product line targets high-efficiency, low-power industrial and lighting applications requiring integrated analog, motor control acceleration, and standardized digital communication (DALI-2, PMBus), built on Renesas' ultra-low-power RL78 architecture.

FAQ

What is the maximum operating frequency of the R7F101GGG2DFB#AA1?

The R7F101GGG2DFB#AA1 operates at a maximum CPU frequency of 48 MHz, achieved using the high-speed on-chip oscillator or PLL clock. This enables a minimum instruction execution time of 0.02083 µs, supporting real-time control loops in motor and power applications. The device also supports ultra-low-speed operation at 32.768 kHz for RTC and low-power monitoring tasks.

Does the R7F101GGG2DFB#AA1 support DALI-2 communication natively?

Yes, the R7F101GGG2DFB#AA1 includes dedicated DALI-2 physical layer support via its UART0 peripheral (P00/TxD1 and P01/RxD1 pins), with hardware-level framing, collision detection, and timing compliance per IEC 62386-102. No external transceiver IC is required, reducing BOM count and board area in smart LED driver designs.

What is the role of the Flexible Application Accelerator (FAA) in the R7F101GGG2DFB#AA1?

The FAA in the R7F101GGG2DFB#AA1 is a dedicated coprocessor that executes 32-bit signed multiply-accumulate, addition, subtraction, and limit operations with 33-bit internal precision. It offloads computationally intensive tasks like motor FOC transforms or digital power control algorithms from the main RL78 CPU, reducing interrupt latency and improving deterministic real-time performance.

How many analog-to-digital converter (ADC) channels does the R7F101GGG2DFB#AA1 have, and what is their resolution?

The R7F101GGG2DFB#AA1 features a 12-bit successive-approximation ADC with up to 23 input channels. Two of these channels are connected to independent sample-and-hold circuits, enabling true simultaneous sampling for phase-current reconstruction in 3-phase motor control. Internal reference voltage (1.48 V) and temperature sensor are also integrated.

What packaging and temperature grade does the R7F101GGG2DFB#AA1 use?

The R7F101GGG2DFB#AA1 uses a 48-pin LFQFP package (7 mm × 7 mm, 0.50-mm pitch) and is rated for an operating ambient temperature range of –40°C to +85°C (industrial/consumer grade). The #AA1 suffix indicates tray packaging and compliance with standard industrial reliability requirements.