Renesas R7F101G8E3CLA#AC1

Overview

R7F101G8E3CLA#AC1 from Renesas is a 25-pin WFLGA-packaged RL78/G24 16-bit microcontroller featuring 64 KB code flash, 4 KB data flash, and 12 KB RAM, operating at up to 48 MHz with 50-µA/MHz ultra-low-power efficiency. It integrates FAA for motor control acceleration, dual DACs, 12-bit ADC with 23 channels, DALI-2 interface, and KB30/KB31/KB32 complementary PWM timers - deployed in digital power supplies and LED lighting controllers.

For engineers reviewing the R7F101G8E3CLA#AC1 datasheet, R7F101G8E3CLA#AC1 pinout, R7F101G8E3CLA#AC1 application, or R7F101G8E3CLA#AC1 equivalent, key selection criteria include its 25-pin WFLGA (3 × 3 mm) footprint, –40 to +105°C industrial temperature grade, DALI-2 compliance, and integrated flexible application accelerator for real-time PFC and multi-phase lighting control.

Technical Context

The R7F101G8E3CLA#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, limit operations, and 32-byte shared memory with the CPU for deterministic motor and lighting control loops.

Peripheral integration includes two 8-/10-bit DACs (0–VDD output), 12-bit ADC with 23 analog inputs and dual sample-and-hold, four comparators with selectable reference sources, and three 16-bit complementary PWM timers (KB30/KB31/KB32) delivering 651-ps average resolution at 96 MHz with dithering - all synchronized via Event Link Controller (ELC) for hardware-triggered, low-latency signal chains.

Key Specifications

Pinout & Package

25-pin plastic WFLGA package (3 × 3 mm, 0.50-mm pitch) with exposed die pad recommended for thermal management. Pin functions are multiplexed and configurable 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 R7F101G8G3CLA#AC1, this part trades flash capacity for smaller code footprint; compared with R7F101G7E3CNP#AA1, it adds one pin for expanded analog or communication capability in the same 3 × 3 mm footprint - enabling higher integration density without sacrificing flexibility.

Availability

R7F101G8E3CLA#AC1 is available at Aetrix Electronics and suitable for digital power supplies, LED lighting controllers, industrial motor drives, and smart sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for R7F101G8E3CLA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G24 product line delivers ultra-low-power 16-bit MCUs with integrated analog peripherals and communications interfaces - designed specifically for cost-sensitive, energy-efficient digital power, lighting, and motor control applications.

FAQ

What is the maximum operating frequency of the R7F101G8E3CLA#AC1?

The R7F101G8E3CLA#AC1 supports a maximum CPU operating frequency of 48 MHz using the high-speed on-chip oscillator or PLL clock. At this speed, the minimum instruction execution time is 0.02083 µs. The device also supports ultra-low-speed operation at 32.768 kHz (30.5 µs/instruction) for real-time clock and low-power monitoring tasks - both modes are fully supported within the R7F101G8E3CLA#AC1's specified –40 to +105°C industrial temperature range.

Does the R7F101G8E3CLA#AC1 support DALI-2 communication natively?

Yes, the R7F101G8E3CLA#AC1 includes a dedicated digital addressable lighting interface (DALI) peripheral compliant with IEC 62386-102:2014 (DALI-2). It provides hardware-level framing, collision detection, and timing control - eliminating the need for external transceivers or bit-banged software implementations. This capability is confirmed in the RL78/G24 datasheet section 1.1 and functional outline, and applies directly to the R7F101G8E3CLA#AC1 as a 25-pin WFLGA variant with industrial temperature grade.

What are the analog-to-digital converter (ADC) specifications for the R7F101G8E3CLA#AC1?

The R7F101G8E3CLA#AC1 features a 12-bit successive-approximation ADC with up to 23 analog input channels. Two of these channels are connected to separate sample-and-hold circuits, enabling simultaneous sampling for accurate phase-current measurement in motor control or multi-sensor acquisition. It includes an internal 1.48-V reference voltage and supports external references. These ADC capabilities are explicitly listed in the "A/D converter" subsection of the RL78/G24 datasheet and apply to all variants including the R7F101G8E3CLA#AC1.

How many DAC channels does the R7F101G8E3CLA#AC1 have, and what is their resolution?

The R7F101G8E3CLA#AC1 integrates two independent D/A converters, each configurable for 8-bit or 10-bit resolution depending on VDD (2.7–5.5 V). Output voltage range is 0 V to VDD, and outputs are updated in real time without CPU intervention. This dual-DAC capability is documented in the "D/A converter" section of the RL78/G24 datasheet and is consistent across all 25-pin WFLGA variants, including the R7F101G8E3CLA#AC1.

What is the package type and pin count of the R7F101G8E3CLA#AC1?

The R7F101G8E3CLA#AC1 uses a 25-pin plastic WFLGA package measuring 3 × 3 mm with 0.50-mm pitch. This is confirmed in Table 1-1 ("List of Ordering Part Numbers") and Figure 1-1 of the RL78/G24 datasheet, where "LA" denotes WFLGA and "8" denotes 25-pin count. The #AC1 suffix specifies tray packaging for WFLGA devices - matching the physical dimensions and soldering requirements described in the 25-pin WFLGA mechanical drawing PWLG0025KB-A.