Renesas R7F102G8C2DLA#HC0

Overview

R7F102G8C2DLA#HC0 from Renesas is a 25-pin WFLGA-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and 2 KB data flash, operating from 1.6 V to 5.5 V. It integrates capacitive touch sensing (up to 29 keys), 10-bit ADC (10 channels), RTC, UART/I²C/SPI interfaces, and ultra-low-power modes including 200-nA STOP mode - deployed in battery-powered human interface modules.

For engineers reviewing the R7F102G8C2DLA#HC0 datasheet, R7F102G8C2DLA#HC0 pinout, R7F102G8C2DLA#HC0 application, or R7F102G8C2DLA#HC0 equivalent, key selection criteria include its 25-pin WFLGA (3 × 3 mm) footprint, consumer-grade −40 to +85°C temperature range, 32 KB flash configuration, and integrated CTSU2La capacitive sensing unit supporting self- and mutual-capacitance topologies.

Technical Context

The RL78/G22 core implements a CISC architecture with 3-stage pipeline and configurable instruction timing - enabling 0.03125 µs min. execution at 32 MHz (high-speed on-chip oscillator) or 30.5 µs at 32.768 kHz (subsystem clock). It supports multiply/divide/MAC instructions and 1 MB address space.

Power management includes HALT, STOP (200 nA), and SNOOZE modes - the latter using a dedicated sequencer for low-power background processing without CPU/RAM/flash activation. Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining and Data Transfer Controller (DTC) with block/repeat transfer modes.

Key Specifications

Pinout & Package

Package: WFLGA-25 (3 × 3 mm, 0.50-mm pitch), lead-free, moisture-sensitive level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F102G8C2DLA#HC0, the R7F102G8E2DLA#HC0 offers double flash capacity for complex UI logic or OTA update staging, while the R7F102G6C2DSP#HA0 trades touch capability and WFLGA miniaturization for lower assembly cost and legacy LSSOP compatibility.

Availability

R7F102G8C2DLA#HC0 is available at Aetrix Electronics and suitable for smart home remotes, industrial HMIs, portable medical sensors, and white goods control boards requiring stable component supply across extended production lifecycles.

Supply support for R7F102G8C2DLA#HC0 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 industrial, automotive, and IoT markets.

The RL78/G22 product line delivers true low-power performance for cost-sensitive, battery-operated human interface and sensor-edge applications - emphasizing capacitive touch integration, sub-µA sleep, and rapid time-to-market with scalable memory options.

FAQ

What is the operating temperature range for R7F102G8C2DLA#HC0?

R7F102G8C2DLA#HC0 is rated for consumer applications with an operating ambient temperature range of −40°C to +85°C. This specification is confirmed in the RL78/G22 datasheet Rev.1.20 Section 1.1, and applies specifically to part numbers ending in '2D' - which R7F102G8C2DLA#HC0 satisfies via its '2D' suffix encoding ('2' = −40 to +85°C, 'D' = consumer grade).

Does R7F102G8C2DLA#HC0 include hardware capacitive touch sensing?

Yes, R7F102G8C2DLA#HC0 integrates the CTSU2La (Capacitive Touch Sensing Unit version 2 Low-power Active) hardware engine, supporting up to 29 keys using either self-capacitance (single-pin per key) or mutual-capacitance (matrix) configurations. This is documented in Section 1.1 Features and Table 1-5 Pin Functions of the RL78/G22 datasheet.

What is the flash memory configuration of R7F102G8C2DLA#HC0?

R7F102G8C2DLA#HC0 contains 32 KB of code flash memory organized in 2 KB blocks, with security features including block erase/write prohibition. This is explicitly defined in the RL78/G22 part numbering scheme ('C' = 32 KB) and verified in Table 1-1 "List of Ordering Part Numbers" and Section 1.1 Features of the datasheet.

Which package type does R7F102G8C2DLA#HC0 use?

R7F102G8C2DLA#HC0 uses a 25-pin WFLGA (Wafer-Level Glass Array) package measuring 3 mm × 3 mm with 0.50-mm pitch. The 'LA' in the part number denotes WFLGA, and '#HC0' specifies embossed tape packaging - confirmed in Figure 1-1 and Table 1-1 of the RL78/G22 datasheet.

Can R7F102G8C2DLA#HC0 operate from a single 3.3 V supply?

Yes, R7F102G8C2DLA#HC0 operates across 1.6 V to 5.5 V, fully supporting standard 3.3 V systems. Its high-speed on-chip oscillator maintains ±1.0% accuracy over this range at −20°C to +85°C, and all I/Os are 5 V-tolerant when configured appropriately - details are in Section 1.1 "Features" and Electrical Characteristics tables of the datasheet.