Renesas R7F101GJE2DFA#AA1

Overview

R7F101GJE2DFA#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, 4 KB data flash, and 12 KB RAM. It integrates FAA accelerator, 12-bit ADC (23 channels), dual DAC, four comparators, programmable gain amplifier, DALI-2 interface, and KB30–KB32 complementary PWM timers for digital power and motor control.

For engineers reviewing the R7F101GJE2DFA#AA1 datasheet, R7F101GJE2DFA#AA1 pinout, R7F101GJE2DFA#AA1 application, or R7F101GJE2DFA#AA1 equivalent, key selection criteria include its –40°C to +85°C consumer-grade temperature range, 1.6–5.5 V operation, integrated DALI-2 and PMBus/SMBus support, and hardware-accelerated motor control peripherals.

Technical Context

The R7F101GJE2DFA#AA1 implements a CISC-based RL78 CPU 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 with shared 32-byte memory between CPU and FAA cores.

Peripheral integration includes two to six I²C/Simplified I²C interfaces, one DALI interface, one SM/PM bus interface, up to six simplified SPIs, three UART/LIN interfaces, and KB30–KB32 16-bit complementary PWM timers supporting PFC control, dithering, and 651-ps average resolution at 96 MHz - all operating within the same low-power platform delivering 50 µA/MHz active current.

Key Specifications

Pinout & Package

Package: 52-pin plastic LQFP (10 × 10 mm, 0.65-mm pitch), tray packaging (#AA1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F101GJE2DFA#AA1, the R7F101GJE3CFA#AA1 offers identical functionality with extended temperature rating, while R7F101GGE2DFA#AA1 reduces flash size and removes DALI and KB-series timers - making it a lower-cost alternative for less demanding lighting applications.

Availability

R7F101GJE2DFA#AA1 is available at Aetrix Electronics and suitable for LED lighting control, digital power supply design, and smart home sensor hub development requiring stable component supply and long-term production continuity.

Supply support for R7F101GJE2DFA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G24 product line delivers ultra-low-power, high-integration MCUs optimized for digital power conversion, DALI-2 lighting systems, and motor control - combining RL78 CPU efficiency with hardware accelerators for real-time analog-intensive workloads.

FAQ

What is the maximum operating frequency and core architecture of the R7F101GJE2DFA#AA1?

The R7F101GJE2DFA#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 48 MHz using the high-speed on-chip oscillator or PLL clock. The core supports configurable speed modes, including ultra-low-speed operation at 32.768 kHz with 30.5 µs instruction time - enabling dynamic power/performance scaling in the R7F101GJE2DFA#AA1.

Does the R7F101GJE2DFA#AA1 support DALI-2 communication natively?

Yes, the R7F101GJE2DFA#AA1 includes a dedicated digital addressable lighting interface (DALI) peripheral. Pins P00 and P01 are assigned DALITxD0 and DALIRxD0 functions respectively, enabling direct physical-layer DALI-2 implementation without external transceivers. This capability is confirmed in the RL78/G24 datasheet Section 1.1 and Table 1-2, and is fully supported in the R7F101GJE2DFA#AA1 variant.

What are the flash and RAM capacities of the R7F101GJE2DFA#AA1?

The R7F101GJE2DFA#AA1 integrates 128 KB of code flash memory (2 KB block size), 4 KB of data flash memory with background operation (BGO), and 12 KB of on-chip RAM. The data flash supports up to 1,000,000 rewrite cycles (typ.), and both flash types include security features such as block erase prohibition and flash shield window - all verified in the RL78/G24 datasheet Rev.1.20, Page 4 and Section 1.1.

Which timer peripherals in the R7F101GJE2DFA#AA1 support complementary PWM outputs for motor control?

The R7F101GJE2DFA#AA1 includes three 16-bit complementary PWM timers - KB30, KB31, and KB32 - each providing two outputs (up to six total). These timers support PFC control, dithering, asynchronous forced stop, and achieve 651-ps average resolution when operating at 96 MHz. Their capabilities are explicitly documented in the RL78/G24 datasheet Section 1.1 "Timers" and apply to all 52-pin variants including the R7F101GJE2DFA#AA1.

What is the operating temperature range and supply voltage specification for the R7F101GJE2DFA#AA1?

The R7F101GJE2DFA#AA1 is rated for –40°C to +85°C ambient temperature (D-field marking per datasheet Figure 1-1) and operates from a single 1.6 V to 5.5 V supply. Its ultra-low power consumption of 50 µA/MHz is specified across this full voltage and temperature range, and the internal voltage detectors (LVD0/LVD1) provide reset and monitoring functionality - all confirmed in RL78/G24 datasheet Rev.1.20 Sections 1.1 and 1.2.