Renesas R7F100GMN2DFA#HA0

Overview

R7F100GMN2DFA#HA0 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, UARTA/IICA/SAU interfaces, and SNOOZE mode sequencer for battery-powered HMI applications.

For engineers reviewing the R7F100GMN2DFA#HA0 datasheet, R7F100GMN2DFA#HA0 pinout, R7F100GMN2DFA#HA0 application, or R7F100GMN2DFA#HA0 equivalent, key selection criteria include its 80-pin LFQFP-0.5 mm package, -40 to +85°C temperature grade, 768 KB flash/48 KB RAM configuration, CTSU2L support for up to 64 keys, and SNOOZE mode sequencer enabling CPU-free periodic sensor polling.

Technical Context

The R7F100GMN2DFA#HA0 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its power architecture includes HALT, STOP, and SNOOZE modes - the latter using a dedicated sequencer to execute up to 32 low-power operations without CPU, flash, or RAM activation.

Peripheral integration includes a Logic and Event Link Controller (ELCL) for configurable signal 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 (32 keys) and mutual capacitance (8×8 matrix, 64 keys) operation under VDD = 1.8–5.5 V.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.50-mm pitch), lead-free, RoHS-compliant, embossed tape packaging (#HA0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GML2DFA#HA0 and R7F100GMK2DFA#HA0, the R7F100GMN2DFA#HA0 provides maximum on-chip memory headroom for feature-rich firmware, secure bootloader space, and long-term field upgradeability - critical for connected devices requiring regulatory recertification and security patching over 10+ year lifecycles.

Availability

R7F100GMN2DFA#HA0 is available at Aetrix Electronics and suitable for smart home controllers, portable medical monitors, industrial HMIs, and energy-efficient thermostats requiring stable component supply across multi-year production programs.

Supply support for R7F100GMN2DFA#HA0 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RL78/G23 product line delivers true low-power performance for battery-operated and energy-sensitive applications, integrating advanced capacitive touch, ultra-low-power modes, and robust peripheral sets to replace discrete analog and interface components in cost-constrained designs.

FAQ

What is the maximum operating frequency and corresponding current consumption of the R7F100GMN2DFA#HA0?

The R7F100GMN2DFA#HA0 supports up to 32 MHz operation using the high-speed on-chip oscillator, achieving a typical active current of 41 µA per MHz. At 32 MHz, total core current is approximately 1.31 mA (excluding peripherals), verified under VDD = 3.3 V and TA = 25°C per R01DS0395EJ0140 Rev.1.40 Section 1.1.

Does the R7F100GMN2DFA#HA0 support hardware debugging, and what interface is used?

Yes, the R7F100GMN2DFA#HA0 supports on-chip debugging via the single-wire SWD interface using pins P40 (TOOL0) and RESET. This enables full breakpoint, step-through, and memory inspection capabilities without consuming dedicated debug pins - preserving all 80 I/Os for application use.

How many capacitive touch channels does the CTSU2L unit support on the R7F100GMN2DFA#HA0, and what configurations are possible?

The CTSU2L unit on the R7F100GMN2DFA#HA0 supports up to 32 self-capacitance keys (one pin per key) or 64 mutual-capacitance keys (8 × 8 matrix) using dedicated pins including P30, P31, P50–P51, P60–P62, and P70–P73. Both configurations operate under VDD = 1.8–5.5 V with built-in noise cancellation algorithms.

What is the data flash endurance and rewrite capability of the R7F100GMN2DFA#HA0?

The R7F100GMN2DFA#HA0 includes 8 KB of data flash memory rated for 1,000,000 rewrite cycles (typical) with Background Operation (BGO) support. This allows concurrent code execution and data flash rewriting - essential for logging, calibration storage, and secure firmware updates without system interruption.

Can the R7F100GMN2DFA#HA0 operate from a single 1.8 V supply, and which peripherals remain functional?

Yes, the R7F100GMN2DFA#HA0 operates from 1.6–5.5 V, including 1.8 V. At 1.8 V, the RL78 core, 12-bit ADC (with internal 1.48 V reference), CTSU2L, RTC, and UARTA/IICA/SAU interfaces remain fully functional. However, high-speed on-chip oscillator accuracy degrades to ±2.0%, and maximum frequency is limited to 16 MHz per datasheet Section 1.1.