Renesas R7F102GGC2DNP#AA0

Overview

R7F102GGC2DNP#AA0 from Renesas is a 48-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and 2 KB data flash, operating from 1.6 to 5.5 V. It delivers ultra-low power consumption (37.5 µA/MHz active, 200 nA STOP mode), integrates 10-channel 10-bit ADC, RTC, capacitive touch support for up to 29 sensors, and targets battery-powered consumer HMI applications.

For engineers reviewing the R7F102GGC2DNP#AA0 datasheet, R7F102GGC2DNP#AA0 pinout, R7F102GGC2DNP#AA0 application, or R7F102GGC2DNP#AA0 equivalent, key selection criteria include its 48-pin HWQFN-0.5 mm pitch package, -40 to +85°C temperature grade, consumer-field qualification (D-suffix), and integrated CTSU2La capacitive sensing unit with TSCAP and 29-key support.

Technical Context

The R7F102GGC2DNP#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). It features dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and low-speed 32.768 kHz oscillator for RTC and STOP-mode operation.

Its peripheral set includes eight 16-bit timer channels, one 32-bit interval timer, four UARTA/UART/LIN channels, up to six I²C/Simplified I²C interfaces, and a SNOOZE mode sequencer enabling CPU-free background processing of up to 32 sequential commands - critical for low-power sensor polling and HMI event handling without wake-up overhead.

Key Specifications

Pinout & Package

48-pin HWQFN (7 × 7 mm, 0.50-mm pitch) with exposed thermal pad; requires REGC capacitor (0.47–1 µF) to VSS. Pin functions multiplexed across 10 analog inputs, 32 GPIO, 4 UARTA channels, 6 I²C interfaces, 8 TAU timers, RTC, CTSU2La, and debug (TOOLx) signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F102GGC2DNP#AA0, R7F102GGE2DNP#AA0 offers double code flash capacity without altering pinout or power profile, while R7F102GGC2DFB#AA0 retains identical functionality but shifts to LFQFP packaging - impacting thermal management and board assembly strategy.

Availability

R7F102GGC2DNP#AA0 is available at Aetrix Electronics and suitable for smart home remotes, portable medical monitors, wireless sensor nodes, and appliance control panels requiring stable component supply and long-term industrial availability.

Supply support for R7F102GGC2DNP#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/G22 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interface and sensor-edge applications - balancing performance, integration, and energy efficiency.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R7F102GGC2DNP#AA0?

The R7F102GGC2DNP#AA0 supports up to 32 MHz operation using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6 V to 5.5 V supply range. At 32 MHz, minimum VDD is 2.7 V per datasheet timing specifications; lower frequencies (e.g., 24 MHz) allow operation down to 1.8 V, and ultra-low-speed modes (32.768 kHz) function reliably at 1.6 V.

Does the R7F102GGC2DNP#AA0 include hardware support for capacitive touch sensing, and how many keys can it manage?

Yes, the R7F102GGC2DNP#AA0 integrates the CTSU2La capacitive sensing unit, supporting up to 29 self-capacitance keys or configurable mutual-capacitance matrices. It uses the dedicated TSCAP pin and internal charge-transfer circuitry, requiring only external electrodes and a single 10–100 nF capacitor - no external touch controller IC is needed for basic implementations.

What debug interface does the R7F102GGC2DNP#AA0 provide, and which pins are used?

The R7F102GGC2DNP#AA0 provides on-chip debugging via the TOOL interface using pins P40 (TOOL0), P11 (TOOLRxD), and P12 (TOOLTxD). These support serial-wire debug (SWD)-compatible communication for programming and real-time tracing, eliminating need for JTAG header - simplifying PCB layout and reducing BOM count.

Can the R7F102GGC2DNP#AA0 operate from a single 3.3 V supply, and what peripherals remain functional at that voltage?

Yes, the R7F102GGC2DNP#AA0 operates fully within its 1.6–5.5 V range, including standard 3.3 V systems. At 3.3 V, all peripherals function: 10-bit ADC (with internal 1.48 V reference), RTC, CTSU2La, UARTA, I²C, timers, and 32 KB flash - with typical active current of ~125 µA at 32 MHz, enabling efficient mixed-signal operation without level-shifting.

Is there a factory-programmed unique ID or security feature embedded in the R7F102GGC2DNP#AA0?

The R7F102GGC2DNP#AA0 includes flash shield window protection and block erase/write prohibition for secure firmware storage, but does not contain a factory-programmed unique ID. Security relies on user-configurable lock bits and memory protection settings - enabling code confidentiality and anti-cloning measures, though device-specific serialization must be implemented externally or via user-written flash sectors.