Renesas R7F100GSN3CFB#BA0

Overview

R7F100GSN3CFB#BA0 from Renesas is a 128-pin LFQFP-packaged RL78/G23 16-bit microcontroller with 768 KB code flash, 48 KB RAM, and 8 KB data flash, 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 (up to 64 keys), and dual A/D converters (8/10/12-bit, 26 channels) for industrial HMI and sensor node applications.

For engineers reviewing the R7F100GSN3CFB#BA0 datasheet, R7F100GSN3CFB#BA0 pinout, R7F100GSN3CFB#BA0 application, or R7F100GSN3CFB#BA0 equivalent, key selection criteria include its 128-pin LFQFP-0.5 mm pitch package, -40°C to +105°C industrial temperature rating, SNOOZE mode sequencer for autonomous low-power sensing, and hardware event link controller (ELCL) enabling interrupt-free peripheral coordination.

Technical Context

The R7F100GSN3CFB#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 mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 768 KB code flash (2 KB block size), 8 KB data flash with background operation (BGO), and 48 KB on-chip RAM.

Peripherals include a 26-channel 8/10/12-bit A/D converter with internal 1.48 V reference and temperature sensor, two 8-bit D/A outputs (0–VDD), dual comparators with selectable reference sources, and a dedicated capacitive sensing unit (CTSU2L) supporting self- and mutual-capacitance configurations. The SNOOZE mode sequencer executes up to 32 predefined commands without CPU involvement, while the ELCL routes event signals between peripherals using configurable logic and flip-flop circuits.

Key Specifications

Pinout & Package

Package: 128-pin LFQFP (14 × 20 mm, 0.50-mm pitch), RoHS-compliant, industrial-grade plastic body with exposed thermal pad (recommended connection to VSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GLN3CFB#BA0 and R7F100GMN3CFB#BA0, the R7F100GSN3CFB#BA0 provides maximum on-chip memory headroom for future firmware enhancements, secure over-the-air updates, and multi-protocol stacks-critical for long-lifecycle industrial deployments requiring field-upgradable functionality.

Availability

R7F100GSN3CFB#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and factory automation I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R7F100GSN3CFB#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G23 product line delivers true low-power 16-bit MCUs optimized for industrial human-machine interfaces, sensor edge nodes, and energy-efficient control systems requiring long battery life and robust operation across wide temperature ranges.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R7F100GSN3CFB#BA0?

The R7F100GSN3CFB#BA0 operates at 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 32 MHz, minimum instruction execution time is 0.03125 µs. Full 1.6–5.5 V operation is supported at lower frequencies, including 16 MHz and below.

Does the R7F100GSN3CFB#BA0 support hardware-based capacitive touch sensing, and what configurations are available?

Yes, the R7F100GSN3CFB#BA0 integrates the CTSU2L capacitive 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 and includes built-in noise cancellation algorithms to maintain reliability in electrically noisy industrial environments.

How many serial communication interfaces does the R7F100GSN3CFB#BA0 provide, and which protocols are supported?

The R7F100GSN3CFB#BA0 provides up to 10 serial interfaces: 4–10 channels of I²C/Simplified I²C, 3–6 channels of UART/UARTA (with LIN-bus support), and 3–8 channels of Simplified SPI (CSI). All channels are independently configurable and support concurrent operation without resource conflict.

What is the purpose and capability of the SNOOZE mode sequencer (SMS) in the R7F100GSN3CFB#BA0?

The SNOOZE mode sequencer (SMS) in the R7F100GSN3CFB#BA0 executes up to 32 predefined commands-including calculations, comparisons, and peripheral triggers-without CPU, flash, or RAM involvement. It enables autonomous, ultra-low-power periodic sensing or event-driven wakeups, reducing average system current by eliminating polling loops.

Is the R7F100GSN3CFB#BA0 pin-compatible with other RL78/G23 family members in the same 128-pin LFQFP package?

Yes, the R7F100GSN3CFB#BA0 shares identical pinout, electrical characteristics, and peripheral mapping with all other RL78/G23 devices in the 128-pin LFQFP (PLQP0128KD-A) package, including R7F100GSJ3CFB#BA0, R7F100GSK3CFB#BA0, and R7F100GSL3CFB#BA0. Firmware and PCB layouts are interchangeable across these variants.