Renesas R7F100GPH2DFA#BA0

Overview

R7F100GPH2DFA#BA0 from Renesas is a 100-pin, consumer-grade RL78/G23 16-bit microcontroller with 128 KB code flash, 8 KB data flash, and 16 KB RAM, operating from 1.6–5.5 V. It delivers ultra-low power consumption (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (CTSU2L), 12-bit ADC (26 channels), dual 8-bit DACs, and hardware SNOOZE mode sequencer for autonomous low-power sensor polling in battery-powered HMI and IoT edge nodes.

For engineers reviewing the R7F100GPH2DFA#BA0 datasheet, R7F100GPH2DFA#BA0 pinout, R7F100GPH2DFA#BA0 application, or R7F100GPH2DFA#BA0 equivalent, key selection criteria include its LFQFP-100 package with 0.5-mm pitch, -40 to +85°C temperature grade, 128 KB flash/16 KB RAM memory configuration, and support for UARTA (6 channels), IICA (10 channels), and SAU-based SPI/I²C/UART peripherals in space-constrained industrial control panels and smart home appliances.

Technical Context

The R7F100GPH2DFA#BA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its SNOOZE mode sequencer executes up to 32 autonomous processes using 21 command types without CPU, flash, or RAM activation-enabling deterministic low-power sensor wakeups.

Peripheral integration includes a Logic and Event Link Controller (ELCL) for configurable signal routing between functions, a Data Transfer Controller (DTC) with chain transfer capability, and a capacitive sensing unit supporting both self-capacitance (32 keys) and mutual capacitance (8×8 matrix, 64 keys) operation under 1.8–5.5 V supply conditions.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP (14 × 14 mm, 0.50-mm pitch), RoHS-compliant, consumer-grade (-40 to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GPH2DFA#BA0, the R7F100GPH3CFA#AA0 offers guaranteed operation up to +105°C but requires no PCB changes, while the R7F100GLH2DFA#BA0 reduces pin count and peripheral count to lower assembly cost-making it viable only where I/O headroom and ambient temperature margins are relaxed.

Availability

R7F100GPH2DFA#BA0 is available at Aetrix Electronics and suitable for smart home thermostats, industrial HMI panels, wireless sensor nodes, and appliance motor control systems requiring stable component supply across multi-year production cycles.

Supply support for R7F100GPH2DFA#BA0 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G23 product line targets ultra-low-power embedded applications demanding high integration, robust capacitive touch, and long battery life-including white goods, building automation, and portable medical devices.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R7F100GPH2DFA#BA0?

The R7F100GPH2DFA#BA0 operates up to 32 MHz using its high-speed on-chip oscillator with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = -20 to +85°C. At 1.6 V minimum supply, maximum frequency is reduced to 24 MHz per electrical characteristics specifications. The device supports dynamic clock switching between high-, middle-, and low-speed oscillators to balance performance and power.

Does the R7F100GPH2DFA#BA0 support hardware-based capacitive touch sensing, and what configurations are available?

Yes, the R7F100GPH2DFA#BA0 integrates the CTSU2L capacitive touch sensing unit supporting both self-capacitance (up to 32 keys on single pins) and mutual capacitance (up to 64 keys in 8×8 matrix) configurations. It operates under VDD = 1.8–5.5 V, includes built-in noise suppression, and requires no external components beyond standard decoupling capacitors-enabling direct implementation of touch interfaces on plastic, glass, or metal overlays.

How many UART, I²C, and SPI interfaces does the R7F100GPH2DFA#BA0 provide, and are they independently configurable?

The R7F100GPH2DFA#BA0 provides 6 UARTA channels (with LIN-bus support), 10 IICA channels (hardware I²C with arbitration), and 8 CSI channels (SPI-compatible serial interfaces). All are independently configurable via peripheral I/O redirection registers (PIOR), allowing assignment to multiple pin sets without conflict-enabling concurrent use of UART for debug, I²C for sensors, and SPI for displays or flash memory.

What is the purpose and capability of the SNOOZE mode sequencer (SMS) in the R7F100GPH2DFA#BA0?

The SNOOZE mode sequencer (SMS) in the R7F100GPH2DFA#BA0 executes up to 32 autonomous steps using 21 predefined commands-including ADC conversion, value comparison, GPIO control, and timer start/stop-without waking the CPU, flash, or RAM. This enables deterministic low-power sensor polling, such as reading temperature every 5 seconds and triggering an interrupt only if threshold is exceeded, reducing average current to sub-µA levels.

Can the R7F100GPH2DFA#BA0 perform background data flash writes while executing application code from program memory?

Yes, the R7F100GPH2DFA#BA0 supports Background Operation (BGO) for its 8 KB data flash memory. While the CPU executes instructions from code flash, the data flash controller handles erase and write operations-enabling real-time firmware parameter updates, calibration storage, or event logging without halting control loops or introducing latency into time-critical tasks.