Renesas R7F100GMN2DFA#AA0

Overview

R7F100GMN2DFA#AA0 from Renesas is an RL78/G23 80-pin, consumer-grade (D), ultra-low-power 16-bit MCU with 768 KB code flash, 48 KB RAM, and integrated capacitive touch sensing unit (CTSU2L). It operates from 1.6–5.5 V, achieves 41 µA/MHz active current and 210 nA data retention, and supports real-time clock, 16-bit timers, 12-bit ADC, and multiple serial interfaces including UARTA, IICA, and SAU - deployed in battery-powered home appliances and smart sensors.

For engineers reviewing the R7F100GMN2DFA#AA0 datasheet, R7F100GMN2DFA#AA0 pinout, R7F100GMN2DFA#AA0 application, or R7F100GMN2DFA#AA0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package, -40 to +85°C ambient rating, 768 KB flash/48 KB RAM configuration, CTSU2L support for up to 64 keys, and SNOOZE mode sequencer enabling CPU-free low-power sensor polling.

Technical Context

The RL78/G23 core implements a 3-stage pipeline CISC architecture with configurable instruction timing (0.03125 µs at 32 MHz high-speed mode; 30.5 µs at 32.768 kHz ultra-low-speed mode) and hardware multiply/divide/accumulate instructions. It integrates a SNOOZE mode sequencer (SMS) supporting 32 sequential commands across 21 instruction types for autonomous peripheral operation without CPU wake-up.

Peripheral integration includes a Logic and Event Link Controller (ELCL) for configurable event routing between peripherals, a Data Transfer Controller (DTC) with chain transfer capability, and dual-voltage I/O (1.8/2.5/3.0 V compatible) with N-ch open-drain and controlled-current drive options. The CTSU2L unit supports both self-capacitance (up to 32 keys) and mutual capacitance (8×8 matrix, up to 64 keys) under VDD = 1.8–5.5 V.

Key Specifications

Pinout & Package

Package: 80-pin plastic LQFP (14 × 14 mm, 0.65-mm pitch), consumer-grade (D), tray packaging (#AA0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GMN2DFA#AA0, the R7F100GML2DFA#AA0 offers identical low-power performance and pinout at lower flash cost, while R7F100GMK2DFA#AA0 trades memory capacity for higher volume pricing - enabling tiered product families from premium to value segments without PCB redesign.

Availability

R7F100GMN2DFA#AA0 is available at Aetrix Electronics and suitable for smart appliance control panels, battery-powered environmental sensors, industrial remote controls, home automation gateways, and touch-enabled medical devices requiring stable component supply across production lifecycles.

Supply support for R7F100GMN2DFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G23 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human interface and sensor-edge applications - emphasizing capacitive touch, ultra-low standby current, and integrated analog peripherals.

FAQ

What is the maximum operating frequency and corresponding current consumption for R7F100GMN2DFA#AA0?

R7F100GMN2DFA#AA0 operates up to 32 MHz using the high-speed on-chip oscillator with ±1.0% accuracy. At this frequency, it draws 41 µA per MHz in active mode, resulting in 1.312 mA typical supply current. This enables responsive UI handling and real-time sensor fusion while maintaining ultra-low-power credentials.

Does R7F100GMN2DFA#AA0 support hardware encryption or secure boot features?

R7F100GMN2DFA#AA0 does not integrate hardware AES or secure boot engines. It supports flash security functions including block erase/write prohibition and boot swapping, but cryptographic operations require software implementation. For secure key storage or TLS offload, pairing with a companion secure element is recommended.

Can R7F100GMN2DFA#AA0 drive standard 5 V logic interfaces directly?

No. R7F100GMN2DFA#AA0 I/O pins are rated for VDD (1.6–5.5 V) operation only, with TTL-compatible thresholds. While it can interface with 5 V peripherals using level-shifting circuits or open-drain pull-ups, direct 5 V signal injection risks latch-up. Its N-ch open-drain pins tolerate 6 V, but voltage translation remains necessary for reliable 5 V logic communication.

How many capacitive touch keys can R7F100GMN2DFA#AA0 support in mutual-capacitance mode?

R7F100GMN2DFA#AA0 supports up to 64 keys in mutual-capacitance mode using an 8 × 8 matrix configuration via its CTSU2L unit. This requires dedicated CCD pins (e.g., P60–P62 for rows/columns) and is validated under VDD = 1.8–5.5 V - enabling full-touch control panels without external touch controllers.

Is the RTC in R7F100GMN2DFA#AA0 battery-backed, and what is its accuracy?

Yes. R7F100GMN2DFA#AA0 RTC supports battery backup via the VBAT pin connected to P121, retaining time/calendar data during main power loss. With a 32.768 kHz crystal, RTC accuracy is ±20 ppm (±1.7 sec/day) over -40 to +85°C, and includes hardware clock correction registers to compensate for crystal drift.