Renesas R7F101GBE2DFP#AA1

Overview

R7F101GBE2DFP#AA1 from Renesas is a 32-pin LQFP, 64 KB code flash, 12 KB RAM RL78/G24 microcontroller with 48-MHz CPU operation, 50-µA/MHz ultra-low-power consumption, integrated DALI-2 and PMBus/SMBus interfaces, and hardware-based Flexible Application Accelerator (FAA) for motor control and digital power supply applications.

For engineers reviewing the R7F101GBE2DFP#AA1 datasheet, R7F101GBE2DFP#AA1 pinout, R7F101GBE2DFP#AA1 application, or R7F101GBE2DFP#AA1 equivalent, this device delivers deterministic real-time control with dual 12-bit ADCs (23-channel), six PWM outputs via KB30–KB32 timers, 32-bit interval timer, and on-chip RTC - critical for lighting ballasts, industrial PFC converters, and smart LED drivers requiring DALI compliance and low standby current.

Technical Context

The RL78/G24 core combines CISC architecture with 3-stage pipeline and variable instruction timing (0.02083 µs at 48 MHz / 30.5 µs at 32.768 kHz), enabling dynamic power-performance scaling across HALT, STOP, and SNOOZE modes. Its FAA core supports 32-bit signed multiply-accumulate with 33-bit internal precision and shared 32-byte memory with the main CPU for synchronized motor control loops.

Peripheral integration includes two to six I²C/Simplified I²C interfaces, two to three UART/LIN channels, one dedicated DALI transceiver, one PMBus/SMBus interface, and KB-series complementary-output timers with 651-ps average PWM resolution - all mapped to configurable GPIO pins with programmable pull-up and N-ch open-drain capability up to 6 V.

Key Specifications

Pinout & Package

32-pin plastic LQFP (7 × 7 mm, 0.80-mm pitch), no exposed die pad. Pin functions are multiplexed and configurable via Peripheral I/O Redirection Registers (PIORx). All pins support TTL input buffer or N-ch open-drain mode with optional on-chip pull-up.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F101GBE2DFP#AA1, the R7F101GBG2DFP#AA1 offers double code density without altering layout or firmware porting effort, while the R7F101GAE2DFP#AA1 reduces cost and power at the expense of DALI compliance and advanced motor control features - making it viable only for non-lighting, non-PFC use cases.

Availability

R7F101GBE2DFP#AA1 is available at Aetrix Electronics and suitable for LED lighting ballasts, digital power supplies, smart building sensor nodes, and industrial motor starters requiring stable component supply, long-term lifecycle support, and full DALI-2 certification readiness.

Supply support for R7F101GBE2DFP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G24 product line targets energy-efficient, real-time control applications in lighting, digital power, and motor drives - integrating DALI-2, PMBus, and hardware acceleration to reduce BOM count and firmware development time.

FAQ

What is the operating voltage range for the R7F101GBE2DFP#AA1?

The R7F101GBE2DFP#AA1 operates from 1.6 V to 5.5 V over its full temperature range (–40°C to +85°C). This wide supply range supports direct connection to 3.3-V and 5-V systems without level-shifting, and enables single-supply designs in battery-backed lighting controllers where brown-out immunity is critical. The internal regulator requires a 0.47–1 µF capacitor on the REGC pin referenced to VSS.

Does the R7F101GBE2DFP#AA1 include a dedicated DALI-2 physical layer?

Yes, the R7F101GBE2DFP#AA1 integrates a fully compliant DALI-2 transceiver with built-in bus arbitration, short-circuit protection, and 16-bit addressing per IEC 62386-102. Pins P00 (DALITxD0) and P01 (DALIRxD0) serve as the dedicated DALI bus interface - eliminating the need for external transceivers and reducing bill-of-materials cost and board space in LED driver designs.

How many PWM outputs does the R7F101GBE2DFP#AA1 support, and what is their resolution?

The R7F101GBE2DFP#AA1 supports six complementary PWM outputs via timers KB30, KB31, and KB32 - each providing two outputs. With dithering enabled at 96 MHz, these timers achieve 651-ps average resolution, enabling precise dead-time control in PFC and LLC topologies and smooth 16-bit dimming curves in DALI-controlled LED drivers without external PWM generators.

What debugging and programming interfaces are available on the R7F101GBE2DFP#AA1?

The R7F101GBE2DFP#AA1 supports on-chip debugging via the TOOL0 (P40), TOOLRxD (P11), and TOOLTxD (P12) pins, compatible with Renesas E2 emulator and Flash Programmer tools. It also features self-programming with boot swapping and flash shield window protection, allowing secure field firmware updates without external programmers - critical for deployed lighting and power systems.

Is the R7F101GBE2DFP#AA1 pin-compatible with other RL78/G24 variants in 32-pin LQFP?

Yes, the R7F101GBE2DFP#AA1 shares identical pinout and electrical characteristics with all other 32-pin LQFP RL78/G24 devices including R7F101GBG2DFP#AA1 and R7F101GAE2DFP#AA1. This enables drop-in replacement for flash size or peripheral variation - for example, upgrading to 128 KB flash (R7F101GBG2DFP#AA1) requires no PCB change, only firmware recompilation and flash configuration update.