Renesas R7F100GML3CFB#AA0

Overview

R7F100GML3CFB#AA0 from Renesas is an RL78/G23 80-pin ultra-low-power 16-bit MCU with 512 KB code flash, 48 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V. It integrates capacitive touch sensing (CTSU2L), 16-bit TAU timers (up to 16 channels), RTC, 12-bit ADC (26 channels), dual 8-bit DACs, and multiple serial interfaces including UARTA (6 ch), IICA (10 ch), and CSI (8 ch), targeting industrial HMI and sensor node applications.

For engineers reviewing the R7F100GML3CFB#AA0 datasheet, R7F100GML3CFB#AA0 pinout, R7F100GML3CFB#AA0 application, or R7F100GML3CFB#AA0 equivalent, key selection criteria include its 80-pin LFQFP-0.5mm package, -40°C to +105°C industrial temperature grade, SNOOZE mode sequencer for autonomous low-power operation, and integrated CTSU2L supporting up to 64-key mutual-capacitance touch panels.

Technical Context

The RL78/G23 core implements a 3-stage pipeline CISC architecture with configurable instruction timing-0.03125 µs 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 features a 1 MB address space with four banks of 8×8-bit general-purpose registers.

Power management includes HALT, STOP, and SNOOZE modes; STOP mode enables high-speed wakeup while maintaining 210-nA data retention for 4 KB RAM. The SNOOZE mode sequencer executes up to 32 predefined commands (from 21 types) without CPU, flash, or RAM activation, enabling deterministic ultra-low-power periodic sensing.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.50-mm pitch), industrial-grade (–40°C to +105°C), tray packaging (#AA0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GML3CFB#AA0, the R7F100GML3CFA#AA0 offers identical functionality in a larger LQFP package for easier assembly or thermal dissipation, while the R7F100GLL3CFB#AA0 reduces pin count and I/O without sacrificing memory or key low-power features-enabling smaller PCBs where full 80-pin I/O is unnecessary.

Availability

R7F100GML3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, PLC I/O modules, energy metering front-ends, and battery-powered edge devices requiring stable component supply across extended product lifecycles.

Supply support for R7F100GML3CFB#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 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 ultra-low-power 16-bit MCUs optimized for industrial human-machine interfaces, sensor nodes, and battery-operated equipment requiring long service life and robust peripheral integration.

FAQ

What is the maximum operating frequency and corresponding current consumption of the R7F100GML3CFB#AA0?

The R7F100GML3CFB#AA0 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 41 µA per MHz typical active current. At full speed, this equates to ~1.3 mA total active current, verified under VDD = 3.3 V and TA = 25°C per R01DS0395EJ0140 Rev.1.40 Section 1.1. This enables responsive real-time control while maintaining ultra-low-power credentials.

Does the R7F100GML3CFB#AA0 support hardware-based capacitive touch sensing, and what configurations are available?

Yes, the R7F100GML3CFB#AA0 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 across the full VDD range (1.8–5.5 V) and includes built-in noise cancellation, as documented in Section 1.1 and Figure 1-1 of R01DS0395EJ0140.

What low-power modes are available on the R7F100GML3CFB#AA0, and what is the lowest achievable current draw?

The R7F100GML3CFB#AA0 supports HALT, STOP, and SNOOZE modes. In STOP mode with 4 KB RAM retention enabled, it draws just 210 nA (typical) at VDD = 3.3 V and TA = 25°C. SNOOZE mode further reduces average current by executing autonomous peripheral sequences without CPU wake-up, as specified in Section 1.1 of R01DS0395EJ0140.

Can the R7F100GML3CFB#AA0 execute code while rewriting data flash memory?

Yes, the R7F100GML3CFB#AA0 supports Background Operation (BGO) for data flash memory, allowing program execution from code flash while simultaneously erasing or programming the 8 KB data flash. This enables seamless storage of calibration data or firmware parameters without interrupting real-time tasks, with 1,000,000 write cycles rated endurance per R01DS0395EJ0140 Section 1.1.

What is the pin configuration and package type of the R7F100GML3CFB#AA0?

The R7F100GML3CFB#AA0 uses an 80-pin LFQFP package (12 × 12 mm, 0.50-mm pitch) with no exposed die pad. Pin functions are defined in Table 1-1 and Figure 1-1 of R01DS0395EJ0140, including dedicated CTSU2L inputs (P30/P31), crystal connections (P121/P122), and multi-function serial I/O (P10–P17). The "FB" suffix in the part number explicitly denotes this LFQFP-0.5mm variant.