Renesas R7F100GGF3CFB#BA0

Overview

R7F100GGF3CFB#BA0 from Renesas is a 48-pin LFQFP, 5.0-V tolerant 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 at -40 to +105°C industrial temperature range. It integrates capacitive touch sensing (CTSU2L), 12-bit ADC (26 channels), dual 8-bit DACs, RTC, and ultra-low-power STOP mode (210 nA with 4 KB RAM retention).

For engineers reviewing the R7F100GGF3CFB#BA0 datasheet, R7F100GGF3CFB#BA0 pinout, R7F100GGF3CFB#BA0 application, or R7F100GGF3CFB#BA0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, industrial-grade thermal rating, integrated CTSU2L for up to 64-key mutual-capacitance touch panels, and support for background data flash rewriting (BGO) with 1M-cycle endurance.

Technical Context

The R7F100GGF3CFB#BA0 implements the RL78 CPU core with 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 enables autonomous low-power sensor polling without CPU wake-up, using 21 configurable commands across 32 sequential steps.

Peripheral integration includes Logic & Event Link Controller (ELCL) for hardware-triggered signal routing between modules, DTC for interrupt-driven memory transfers, and dual UARTA channels with LIN-bus support - all operating under the same ultra-low-power architecture that achieves 41 µA/MHz active current and 210 nA data retention.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.50-mm pitch), lead-free, RoHS-compliant, industrial temperature grade (−40 to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GGL3CFB#BA0 and R7F100GFJ3CFB#BA0, the R7F100GGF3CFB#BA0 delivers optimal balance of industrial temperature operation, capacitive touch support, and ultra-low-power retention - making it ideal for cost-sensitive, battery-operated, or thermally constrained embedded controls where 128 KB flash suffices.

Availability

R7F100GGF3CFB#BA0 is available at Aetrix Electronics and suitable for smart energy metering, industrial HMI panels, white goods control, and building automation sensors requiring stable component supply across extended product lifecycles.

Supply support for R7F100GGF3CFB#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 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 cost-effective, ultra-low-power embedded control applications - emphasizing rapid development, long battery life, and robust operation in harsh environments like factory floors and utility infrastructure.

FAQ

What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GGF3CFB#BA0?

The R7F100GGF3CFB#BA0 supports up to 32 MHz operation using its high-speed on-chip oscillator, delivering a minimum instruction execution time of 0.03125 µs. This timing assumes use of the high-speed oscillator with no wait states; lower frequencies (e.g., 24 MHz, 16 MHz) are also selectable for optimized power/performance trade-offs.

Does the R7F100GGF3CFB#BA0 support hardware-accelerated capacitive touch sensing, and what configurations are available?

Yes, the R7F100GGF3CFB#BA0 integrates the CTSU2L capacitive sensing unit supporting both self-capacitance (up to 32 single-key channels) and mutual-capacitance (8×8 matrix = 64 keys) configurations. It operates across the full VDD range of 1.8–5.5 V and includes built-in noise cancellation features for reliable operation in electrically noisy industrial environments.

Can the R7F100GGF3CFB#BA0 perform data flash writes while executing code from flash memory?

Yes, the R7F100GGF3CFB#BA0 supports Background Operation (BGO) for data flash, allowing full program execution from code flash memory while simultaneously rewriting data flash sectors. This enables seamless firmware logging, parameter updates, or OTA staging without halting real-time tasks or introducing latency spikes.

What is the industrial temperature rating of the R7F100GGF3CFB#BA0, and how is it indicated in the part number?

The R7F100GGF3CFB#BA0 is rated for −40 to +105°C operation, confirmed by the "C" field-of-application code and "3" ambient temperature suffix in its ordering designation. This industrial-grade specification ensures reliable performance in demanding environments such as motor drives, HVAC controllers, and utility metering equipment.

How many UARTA channels does the R7F100GGF3CFB#BA0 support, and which ones include LIN-bus functionality?

The R7F100GGF3CFB#BA0 supports up to six UARTA channels, with all UARTA instances capable of LIN-bus physical layer compliance (ISO 17987-4) via programmable slew-rate control and break-detection logic. Channel assignments depend on pin multiplexing - e.g., UARTA0 on P11/P12, UARTA1 on P00/P01 - and are configurable via the peripheral I/O redirection register (PIOR).