Renesas R7F101GEG4CNP#AA1

Overview

R7F101GEG4CNP#AA1 from Renesas is a 40-pin HWQFN-packaged RL78/G24 16-bit microcontroller featuring 128 KB code flash, 12 KB RAM, and 4 KB data flash, operating at up to 48 MHz with 50 µA/MHz ultra-low-power efficiency. It integrates FAA for motor control acceleration, dual 12-bit ADCs with simultaneous sampling, DALI-2 interface, and KB30–KB32 complementary PWM timers - deployed in digital power supplies and LED lighting controllers.

For engineers reviewing the R7F101GEG4CNP#AA1 datasheet, R7F101GEG4CNP#AA1 pinout, R7F101GEG4CNP#AA1 application, or R7F101GEG4CNP#AA1 equivalent, key selection criteria include its 40-pin HWQFN (6 × 6 mm, 0.50-mm pitch) package, –40 to +125°C industrial temperature grade, 128 KB flash capacity, integrated DALI-2 transceiver, and KB-series high-resolution PWM for PFC and multi-phase lighting drivers.

Technical Context

The R7F101GEG4CNP#AA1 implements a CISC-based RL78 CPU core with 3-stage pipeline and variable instruction timing (0.02083 µs min @ 48 MHz), paired with a dedicated Flexible Application Accelerator (FAA) supporting 32-bit signed multiply/accumulate and limit operations. Its timer subsystem includes four KB-series 16-bit complementary PWM timers with 651-ps average resolution, dithering, and asynchronous forced stop triggered by comparators.

It supports concurrent analog acquisition via two independent sample-and-hold circuits across 12–23 ADC channels, programmable gain amplifier (PGA), four comparators with selectable reference sources (D/A or external), and dual I²C/SMBus interfaces plus one dedicated DALI-2 physical layer - all operating within 1.6–5.5 V supply range and HALT/STOP/SNOOZE low-power modes.

Key Specifications

Pinout & Package

Package: HWQFN-40 (6 × 6 mm, 0.50-mm pitch), exposed die pad, RoHS-compliant, tray packaging (#AA1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F101GEE4CNP#AA1, the R7F101GEG4CNP#AA1 provides 2× flash headroom for feature-rich DALI-2 firmware and OTA updates; versus R7F101GGG3CFB#AA1, it trades two UARTs and one CSI for smaller 40-pin HWQFN footprint and lower thermal resistance - ideal for space-constrained LED driver modules.

Availability

R7F101GEG4CNP#AA1 is available at Aetrix Electronics and suitable for digital power supplies, smart LED lighting systems, industrial motor drives, and energy monitoring gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7F101GEG4CNP#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, real-time control applications in digital power conversion, motor control, and intelligent lighting - combining ultra-low-power operation with application-specific accelerators and communication interfaces like DALI-2 and PMBus.

FAQ

What is the maximum operating frequency and associated current consumption of the R7F101GEG4CNP#AA1?

The R7F101GEG4CNP#AA1 operates at up to 48 MHz using its PLL or high-speed on-chip oscillator, achieving a typical active current of 50 µA/MHz. At full speed, this equates to ≈2.4 mA total core current, verified under VDD = 3.3 V and TA = 25°C per R01DS0432EJ0120 Rev.1.20. The device maintains this efficiency across its full 1.6–5.5 V supply range.

Does the R7F101GEG4CNP#AA1 support DALI-2 compliance out-of-the-box?

Yes, the R7F101GEG4CNP#AA1 integrates a fully compliant DALI-2 physical layer per IEC 62386-102:2014, including differential receiver with noise filtering, slew-rate controlled transmitter, and automatic collision detection. No external transceiver or level-shifting components are required to implement DALI-2 master or slave functionality in the R7F101GEG4CNP#AA1.

How many analog input channels does the R7F101GEG4CNP#AA1 ADC support, and what is its sampling capability?

The R7F101GEG4CNP#AA1 features a 12-bit successive-approximation ADC with 20 configurable analog input channels. Two of these channels (ANI0 and ANI1) connect to independent sample-and-hold circuits, enabling true simultaneous sampling for voltage/current pair acquisition - critical for real-time power calculations in AC-DC and DC-DC converters.

What is the role of the Flexible Application Accelerator (FAA) in the R7F101GEG4CNP#AA1?

The FAA in the R7F101GEG4CNP#AA1 is a dedicated hardware accelerator for deterministic real-time math operations: 32-bit signed multiply-accumulate, limit checking, and bit-shifted multiplication results. It offloads compute-intensive tasks like PFC control loops and motor FOC inner loops from the main RL78 CPU, reducing latency by up to 70% and freeing CPU bandwidth for communications and diagnostics.

Is the R7F101GEG4CNP#AA1 pin-compatible with other RL78/G24 variants in the same package?

Yes, all RL78/G24 devices in the 40-pin HWQFN package - including R7F101GEG4CNP#AA1 (128 KB flash) and R7F101GEE4CNP#AA1 (64 KB flash) - share identical pinouts, electrical characteristics, and peripheral mappings. Firmware and PCB designs are interchangeable between these variants, allowing scalable memory selection without layout changes.