Renesas R7F101GJE4CFA#AA1

Overview

R7F101GJE4CFA#AA1 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G24 family, featuring a 48-MHz RL78 CPU core, 128 KB code flash, 12 KB RAM, and integrated FAA accelerator for motor control and digital power applications. It supports DALI-2, PMBus/SMBus, and multiple analog peripherals including 12-bit ADC with 23 channels and three 16-bit complementary PWM timers (KB30–KB32) for PFC and multi-phase operation.

For engineers reviewing the R7F101GJE4CFA#AA1 datasheet, R7F101GJE4CFA#AA1 pinout, R7F101GJE4CFA#AA1 application, or R7F101GJE4CFA#AA1 equivalent, key selection criteria include its 52-pin LQFP package, –40 to +85°C industrial temperature grade (C-field), 128 KB flash/4 KB data flash memory configuration, and support for DALI-2 lighting control and real-time PWM gating with 651-ps average resolution.

Technical Context

The R7F101GJE4CFA#AA1 implements a CISC-based RL78 CPU core with 3-stage pipeline and configurable instruction timing (0.02083 µs min at 48 MHz). Its Flexible Application Accelerator (FAA) provides dedicated 32-bit signed multiply/accumulate and limit operations, sharing 32-byte memory with the CPU for low-latency motor control loops.

Peripheral integration includes dual 16-bit timer arrays (TAU), three high-resolution complementary PWM timers (KB30–KB32) supporting interleaved PFC and dithering, a 12-bit ADC with simultaneous sampling on two channels, and hardware DALI-2 transceiver logic - all operating within 1.6–5.5 V supply and ultra-low 50-µA/MHz active current.

Key Specifications

Pinout & Package

Package: 52-pin LQFP (10 × 10 mm, 0.65-mm pitch), lead-free, RoHS-compliant, industrial-grade (C-field).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F101GJE3CFA#AA1, the R7F101GJE4CFA#AA1 trades extended temperature range for lower unit cost and optimized power delivery in ambient-controlled lighting fixtures; versus R7F101GJG4CFA#AA1, it delivers 2× flash and 3× RAM headroom for field-upgradable features and complex motor control algorithms without changing board layout.

Availability

R7F101GJE4CFA#AA1 is available at Aetrix Electronics and suitable for LED lighting control, digital power supply design, BLDC motor drives, and industrial sensor hub applications requiring stable component supply and long-term industrial lifecycle support.

Supply support for R7F101GJE4CFA#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 high-efficiency, low-power embedded control in lighting, motor, and digital power applications - integrating DALI-2, advanced PWM, and analog front-ends to replace multi-chip solutions.

FAQ

What is the maximum operating frequency and core architecture of the R7F101GJE4CFA#AA1?

The R7F101GJE4CFA#AA1 features a 48-MHz RL78 CPU core with CISC architecture and 3-stage pipeline. Its minimum instruction execution time is 0.02083 µs at full speed, and it supports configurable clock scaling down to 32.768 kHz for ultra-low-power operation. The core includes multiply/divide/accumulate instructions and 1 Mbyte address space - all confirmed in the RL78/G24 datasheet Rev.1.20.

Does the R7F101GJE4CFA#AA1 support DALI-2 communication natively?

Yes, the R7F101GJE4CFA#AA1 integrates a hardware DALI-2 transceiver with dedicated logic for signal shaping, timing compliance, and error detection. It requires no external transceiver IC and supports both master and slave roles per IEC 62386-102. This capability is explicitly documented in Section 1.1 Features and Section 1.2 Pin Configuration of the R7F101GJE4CFA#AA1 datasheet.

What are the memory resources available on the R7F101GJE4CFA#AA1?

The R7F101GJE4CFA#AA1 provides 128 KB of code flash memory (organized in 2-KB blocks), 4 KB of data flash memory rated for 1,000,000 write cycles, and 12 KB of on-chip RAM. These values are specified in Table 1-4 (Outline of Functions) and confirmed across memory capacity tables on pages 4–5 of the RL78/G24 datasheet Rev.1.20.

Which PWM peripherals in the R7F101GJE4CFA#AA1 support complementary output and dithering?

The R7F101GJE4CFA#AA1 includes three 16-bit complementary PWM timers - KB30, KB31, and KB32 - each supporting dithering, forced asynchronous stop, and 651-ps average resolution when operating at 96 MHz. These timers are explicitly listed under "Timers" in Section 1.1 Features and detailed in the Timer section (page 2) of the RL78/G24 datasheet Rev.1.20.

What is the operating temperature range and package type for the R7F101GJE4CFA#AA1?

The R7F101GJE4CFA#AA1 is packaged in a 52-pin LQFP (10 × 10 mm, 0.65-mm pitch) and rated for an operating ambient temperature range of –40 to +85°C (C-field grade). This is confirmed in Table 1-1 (List of Ordering Part Numbers) and Figure 1-1 (Part Number, Memory Size, and Package) of the RL78/G24 datasheet Rev.1.20.