Renesas R7F100GPH3CFA#AA0

Overview

R7F100GPH3CFA#AA0 from Renesas is a 100-pin, industrial-grade RL78/G23 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 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 DAC, RTC, and multiple serial interfaces including UARTA (up to 6 channels), IICA (up to 10 channels), and CSI (up to 8 channels) - deployed in smart home control panels requiring low-power human interface and sensor fusion.

For engineers reviewing the R7F100GPH3CFA#AA0 datasheet, R7F100GPH3CFA#AA0 pinout, R7F100GPH3CFA#AA0 application, or R7F100GPH3CFA#AA0 equivalent, this page provides verified package mapping (100-pin LQFP, 0.65-mm pitch), confirmed SNOOZE mode sequencer operation, validated CTSU2L self/mutual capacitance support, and real-world timing accuracy specs for RTC and on-chip oscillators.

Technical Context

The R7F100GPH3CFA#AA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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 (SMS) executes up to 32 preconfigured processes-including ADC sampling, comparator comparison, and GPIO toggling-without CPU, RAM, or flash activation, enabling sub-µA background sensing.

Peripheral integration includes a Logic and Event Link Controller (ELCL) for hardware-triggered signal routing between peripherals, Data Transfer Controller (DTC) with chain transfer for zero-CPU DMA, and a Remote Control Signal Receiver (REMC) with 4-waveform pattern matching for IR remote decoding - all operating under the same 1.6–5.5 V supply with -40°C to +105°C ambient rating.

Key Specifications

Pinout & Package

Package: 100-pin plastic LQFP (14 × 20 mm, 0.65-mm pitch), industrial temperature grade (-40°C to +105°C), lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GPH3CFA#AA0, R7F100GPJ3CFA#AA0 reduces flash/RAM by 25% for cost-sensitive deployments, while R7F100GPK3CFA#AA0 increases both by 50% to accommodate complex connectivity stacks - all sharing identical pinout, timing specs, and industrial temperature qualification.

Availability

R7F100GPH3CFA#AA0 is available at Aetrix Electronics and suitable for smart home controllers, industrial HMI panels, battery-powered asset trackers, and programmable power outlets requiring stable component supply across extended production lifecycles.

Supply support for R7F100GPH3CFA#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/G23 product line targets ultra-low-power embedded control applications demanding robust capacitive touch, rich analog integration, and long-life battery operation - designed specifically for cost-sensitive, high-volume industrial and consumer HMI systems.

FAQ

What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GPH3CFA#AA0?

The R7F100GPH3CFA#AA0 supports up to 32 MHz operation using its high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.03125 µs. This timing is confirmed in the RL78/G23 datasheet (R01DS0395EJ0140) Section 1.1, which specifies the high-speed mode performance across the full industrial temperature range (-40°C to +105°C).

Does the R7F100GPH3CFA#AA0 support LIN bus communication, and if so, which peripheral implements it?

Yes, the R7F100GPH3CFA#AA0 supports LIN bus communication via its UARTA peripheral. The datasheet explicitly states "UART/UART (LIN-bus supported)/UARTA: 3 to 6 channels" and confirms LIN compliance in functional descriptions. UARTA channel 1 (P00/P01) is commonly used for this purpose, leveraging built-in LIN break detection and sync field handling.

What are the exact flash memory organization and security features of the R7F100GPH3CFA#AA0?

The R7F100GPH3CFA#AA0 contains 256 KB of code flash memory organized in 2 KB blocks. It supports flash security features including prohibition of block erase and rewriting (flash shield window), self-programming with boot swapping, and on-chip debugging lock. These capabilities are documented in Section 1.1 "Code flash memory" of the R01DS0395EJ0140 datasheet.

Can the R7F100GPH3CFA#AA0 operate without an external crystal, and what are the accuracy specifications of its internal oscillators?

Yes, the R7F100GPH3CFA#AA0 can operate fully from internal oscillators. Its high-speed on-chip oscillator offers ±1.0% accuracy across VDD = 1.8–5.5 V and TA = -20 to +85°C. The low-speed oscillator runs at 32.768 kHz (typ.) with adjustability - sufficient for RTC operation without external components, as specified in Section 1.1 "High-speed on-chip oscillator" and "Low-speed on-chip oscillator".

How many capacitive touch channels does the CTSU2L unit support on the R7F100GPH3CFA#AA0, and what configurations are available?

The CTSU2L unit on the R7F100GPH3CFA#AA0 supports up to 32 keys in self-capacitance mode (single-pin per key) or up to 64 keys in mutual-capacitance mode (8×8 matrix). Both configurations operate within VDD = 1.8–5.5 V and include hardware-accelerated noise cancellation. This is confirmed in Section 1.1 "Capacitive sensing unit" of the R01DS0395EJ0140 datasheet.