Renesas R7F101G8G3CLA#AC1

Overview

R7F101G8G3CLA#AC1 from Renesas is a 25-pin WFLGA-packaged RL78/G24 16-bit microcontroller with 128 KB code flash, 12 KB RAM, and 4 KB data flash, operating at up to 48 MHz. It integrates FAA for motor control acceleration, dual 12-bit ADCs with simultaneous sampling, DALI-2 interface, and operates from 1.6–5.5 V across –40 to +105°C industrial temperature range.

For engineers reviewing the R7F101G8G3CLA#AC1 datasheet, R7F101G8G3CLA#AC1 pinout, R7F101G8G3CLA#AC1 application, or R7F101G8G3CLA#AC1 equivalent, key selection criteria include its 25-pin WFLGA footprint, integrated DALI-2 and PMBus/SMBus support, FAA-assisted PFC timing resolution of 651 ps, and dual-sample-and-hold ADC capability for digital power supply and lighting control design.

Technical Context

The R7F101G8G3CLA#AC1 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 Flexible Application Accelerator (FAA) provides dedicated 32-bit signed arithmetic and limit operations, sharing 32-byte memory with the CPU for real-time motor and power control loops.

Peripheral integration includes six I²C/Simplified I²C interfaces, two UART/LIN channels, one DALI interface, and timer resources including TAU (4-channel), RD2 (2-channel PWMOPA), RG2, RX, and KB30–KB32 complementary-output timers optimized for digital power conversion with dithering and 651-ps average resolution at 96 MHz.

Key Specifications

Pinout & Package

25-pin plastic WFLGA package (3 × 3 mm, 0.50-mm pitch), bottom-exposed pad recommended for thermal relief but not electrically connected. Pin functions are multiplexed via peripheral I/O redirection registers (PIORx).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F101G8E3CLA#AC1, the R7F101G8G3CLA#AC1 provides double code flash and data flash capacity for complex DALI scene programming and firmware-over-the-air updates; versus R7F101GAG3CSP#AA1, it trades pin count and RTC flexibility for ultra-compact 3×3 mm WFLGA footprint critical in LED module integration.

Availability

R7F101G8G3CLA#AC1 is available at Aetrix Electronics and suitable for digital power supply control, smart LED lighting drivers, industrial motor control, and embedded HVAC systems requiring stable component supply and long-term industrial-grade availability.

Supply support for R7F101G8G3CLA#AC1 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 applications.

The RL78/G24 product line targets high-efficiency digital power conversion and intelligent lighting systems, integrating specialized peripherals like DALI-2, FAA, and complementary PWM timers to replace multi-chip solutions in space-constrained designs.

FAQ

What is the maximum operating frequency and core architecture of the R7F101G8G3CLA#AC1?

The R7F101G8G3CLA#AC1 features a 16-bit RL78 CPU core with CISC architecture and 3-stage pipeline, operating at up to 48 MHz. At this frequency, the minimum instruction execution time is 0.02083 µs using the high-speed on-chip oscillator or PLL clock. The core also supports ultra-low-speed operation at 32.768 kHz with 30.5 µs instruction time for ultra-low-power modes.

Does the R7F101G8G3CLA#AC1 support DALI-2 communication natively?

Yes, the R7F101G8G3CLA#AC1 includes a dedicated digital addressable lighting interface (DALI) compliant with DALI-2 (IEC 62386-102). It requires no external transceiver or level-shifting components - the interface is fully integrated with configurable current sink/source and protocol handling in firmware, enabling direct connection to DALI bus wiring.

What are the memory resources available on the R7F101G8G3CLA#AC1?

The R7F101G8G3CLA#AC1 provides 128 KB of code flash memory with 2-KB block erasure and security lock, 4 KB of data flash memory supporting background operation (BGO) and 1,000,000 rewrite cycles, and 12 KB of on-chip RAM. Additionally, the FAA subsystem includes 4 KB of dedicated code RAM and 2 KB of data RAM, plus a 32-byte shared memory region accessible by both CPU and FAA cores.

How many analog-to-digital converter (ADC) channels does the R7F101G8G3CLA#AC1 support, and what is its sampling capability?

The R7F101G8G3CLA#AC1 integrates a 12-bit ADC with up to 23 analog input channels. Two of these channels connect to independent sample-and-hold circuits, enabling true simultaneous sampling - essential for vector control in motor drives and differential voltage/current measurement in digital power supplies. Internal reference voltage (1.48 V) and temperature sensor are also provided.

What package type and pin count does the R7F101G8G3CLA#AC1 use, and is it RoHS compliant?

The R7F101G8G3CLA#AC1 uses a 25-pin plastic WFLGA package measuring 3 × 3 mm with 0.50-mm pitch. It is lead-free and RoHS compliant. The bottom-exposed die pad is recommended for thermal relief but has no electrical function and should be soldered to a non-connected copper area on the PCB.