Renesas R7F102GCC2DLA#AC0

Overview

R7F102GCC2DLA#AC0 from Renesas is a 36-pin WFLGA-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and integrated capacitive touch sensing for up to 29 keys. It operates from 1.6 V to 5.5 V, delivers 37.5 µA/MHz active current and 200 nA STOP-mode current, and supports industrial temperature range (−40°C to +105°C). It targets ultra-low-power human-machine interface applications such as smart appliance control panels.

For engineers reviewing the R7F102GCC2DLA#AC0 datasheet, R7F102GCC2DLA#AC0 pinout, R7F102GCC2DLA#AC0 application, or R7F102GCC2DLA#AC0 equivalent, key selection criteria include its 36-pin WFLGA (4 × 4 mm) footprint, CTSU2La-based touch channel count, RTC and SNOOZE mode sequencer support, and dual UART/I²C/SPI peripheral availability in this memory and temperature grade.

Technical Context

The R7F102GCC2DLA#AC0 implements the RL78 CPU core with 3-stage pipeline, 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 on-chip peripherals include a 10-bit A/D converter with 10 analog inputs, 8-channel 16-bit timer array, and real-time clock with alarm and correction functions.

It integrates the SNOOZE mode sequencer (SMS) with 32-process capability and 21 command types, enabling low-power background sensor polling without CPU wake-up. The CTSU2La unit supports both self- and mutual-capacitance touch sensing, with dedicated TSCAP pin and up to 29 configurable touch channels.

Key Specifications

Pinout & Package

Package: WFLGA-36 (4 × 4 mm, 0.50-mm pitch), lead-free, moisture sensitivity level 3. Exposed die pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F102GCC2DLA#AC0, the R7F102GCE2DLA#AC0 provides double the code flash without changing footprint or power profile, while the R7F102GCC3CLA#BC0 trades industrial temperature qualification for lower cost and different packaging-neither alters the core peripheral architecture or touch capabilities.

Availability

R7F102GCC2DLA#AC0 is available at Aetrix Electronics and suitable for industrial HMI terminals, smart appliance control panels, wireless sensor gateways, and medical patient monitor interfaces requiring stable component supply across multi-year production cycles.

Supply support for R7F102GCC2DLA#AC0 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/G22 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interface and sensor-control applications-emphasizing integrated touch, RTC, and intelligent power modes.

FAQ

What is the maximum operating frequency and corresponding instruction cycle time for the R7F102GCC2DLA#AC0?

The R7F102GCC2DLA#AC0 supports up to 32 MHz operation using the high-speed on-chip oscillator, delivering a minimum instruction execution time of 0.03125 µs. This timing is achievable across the full 1.6–5.5 V supply range and −40°C to +105°C temperature range, as specified in the RL78/G22 datasheet Rev.1.20.

Does the R7F102GCC2DLA#AC0 support hardware-accelerated capacitive touch sensing, and how many channels are available?

Yes, the R7F102GCC2DLA#AC0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 touch channels in either self-capacitance (single-key per pin) or mutual-capacitance (matrix) configuration. The unit operates independently of the CPU and includes built-in noise cancellation and auto-calibration features.

What are the memory resources allocated to code, data, and runtime use in the R7F102GCC2DLA#AC0?

The R7F102GCC2DLA#AC0 contains 32 KB of code flash memory, 2 KB of data flash memory (with background rewrite capability), and 4 KB of on-chip SRAM. The data flash supports up to 1,000,000 write/erase cycles and enables non-volatile parameter storage without halting program execution.

Can the R7F102GCC2DLA#AC0 operate reliably in industrial environments with ambient temperatures up to +105°C?

Yes, the R7F102GCC2DLA#AC0 is rated for operation from −40°C to +105°C (industrial grade, denoted by "3C" in Renesas part numbering). This qualification covers all specified electrical characteristics, including flash programming, RTC accuracy, and CTSU2La touch performance, under continuous thermal stress.

Which communication interfaces are available on the R7F102GCC2DLA#AC0, and are they pin-multiplexed?

The R7F102GCC2DLA#AC0 provides up to 6 I²C channels, 4 UART/LIN channels, and 5 CSI (SPI-compatible) channels. All are implemented via pin multiplexing-e.g., P10 supports SCK00, SCL00, and TS11-and configured through the Peripheral I/O Redirection (PIOR) register for flexible signal assignment.

Is there a dedicated hardware RTC in the R7F102GCC2DLA#AC0, and what calendar resolution does it support?

Yes, the R7F102GCC2DLA#AC0 includes a full-featured hardware RTC that counts seconds, minutes, hours, days, months, and years (1–99), with alarm interrupt, periodic interrupt, and clock correction capability. It operates from the 32.768 kHz subsystem clock and maintains accuracy even in STOP mode.