Renesas R7F100GGJ2DFB#AA0

Overview

R7F100GGJ2DFB#AA0 from Renesas is a 48-pin LFQFP, 5.0-V-tolerant RL78/G23 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V at -40 to +85°C. It integrates capacitive touch sensing (up to 64 keys), 12-bit ADC (26 channels), dual 8-bit DACs, RTC, and multiple serial interfaces including UARTA (6 ch), IICA (10 ch), and CSI (8 ch), targeting low-power industrial HMI and sensor node applications.

For engineers reviewing the R7F100GGJ2DFB#AA0 datasheet, R7F100GGJ2DFB#AA0 pinout, R7F100GGJ2DFB#AA0 application, or R7F100GGJ2DFB#AA0 equivalent, this page delivers verified package mapping (LFQFP-48, 0.50-mm pitch), confirmed SNOOZE mode sequencer operation, HALT/STOP power modes, on-chip oscillator accuracy (±1.0% at 32 MHz), and real-world timing/peripheral configuration constraints for rapid schematic integration and firmware bring-up.

Technical Context

The R7F100GGJ2DFB#AA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 256 KB code flash (2-KB block size, security-protected erase), 8 KB background-operable data flash (1M rewrite cycles), and 24 KB SRAM with 210-nA data retention current.

Peripheral integration centers on low-power autonomy: the SNOOZE mode sequencer executes up to 32 preconfigured commands (e.g., ADC sampling, comparison, GPIO toggle) without CPU wake-up; the ELCL enables event-driven peripheral chaining; and the CTSU2L supports self- and mutual-capacitance touch sensing with hardware acceleration and noise immunity features.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.50-mm pitch), RoHS-compliant, moisture sensitivity level 3. Pinout validated per Renesas R01DS0395EJ0140 Rev.1.40, Section 1.3.5 (48-pin products).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit MCU applications.

Compared with R7F100GGJ2DFB#AA0, R7F100GLJ2DFB#AA0 offers double flash/RAM for feature-rich firmware but consumes more active power; R7F100GGJ3CFB#AA0 maintains identical functionality while guaranteeing operation at 105°C-critical for harsh environments where thermal derating cannot be assumed.

Availability

R7F100GGJ2DFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, home appliance controllers, energy meter interfaces, and battery-powered IoT edge devices requiring stable component supply across long production lifecycles.

Supply support for R7F100GGJ2DFB#AA0 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, and power management ICs for industrial, automotive, and IoT markets.

The RL78/G23 product line targets ultra-low-power embedded control applications, integrating capacitive touch, rich analog peripherals, and autonomous low-power modes to replace discrete analog + MCU solutions in cost-sensitive HMI and sensor systems.

FAQ

What is the maximum operating frequency and accuracy of the on-chip oscillator in R7F100GGJ2DFB#AA0?

The R7F100GGJ2DFB#AA0 features a high-speed on-chip oscillator selectable up to 32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = -20 to +85°C. This eliminates the need for an external crystal in many applications while maintaining timing integrity for UART, I2C, and real-time control loops without calibration overhead.

Does R7F100GGJ2DFB#AA0 support capacitive touch sensing, and what configurations are available?

Yes, R7F100GGJ2DFB#AA0 integrates the CTSU2L capacitive sensing unit supporting both self-capacitance (up to 32 keys on single pins) and mutual-capacitance (up to 64 keys in 8×8 matrix). It operates at VDD = 1.8–5.5 V and includes hardware noise cancellation, making it suitable for touch panels, sliders, and proximity detection in consumer and industrial interfaces.

What power-saving modes are implemented in R7F100GGJ2DFB#AA0, and what are their typical current draws?

R7F100GGJ2DFB#AA0 implements HALT mode (41 µA/MHz), STOP mode (0.21 µA typical), and SNOOZE mode (sub-µA autonomous operation). In STOP mode with RTC running and 4 KB RAM retained, current draw is 0.21 µA; data retention for full 24 KB RAM drops to 210 nA, enabling multi-year battery life in infrequently polled sensor nodes.

Can R7F100GGJ2DFB#AA0 execute code while rewriting data flash memory?

Yes, R7F100GGJ2DFB#AA0 supports Background Operation (BGO) for data flash, allowing instruction execution from code flash memory while simultaneously rewriting the 8 KB data flash. This enables seamless firmware updates, parameter logging, or calibration storage without halting real-time application tasks or introducing interrupt latency.

What is the ADC resolution, channel count, and reference voltage options for R7F100GGJ2DFB#AA0?

The R7F100GGJ2DFB#AA0 includes a 12-bit successive-approximation ADC with up to 26 input channels. It supports internal reference voltage (1.48 V), external reference (AVREFP/AVREFM pins), or VDD as reference source. The integrated temperature sensor and 1.48-V reference enable accurate, self-calibrating measurements without external components.