Renesas R7F100GFJ3CFP#AA0

Overview

R7F100GFJ3CFP#AA0 from Renesas is an RL78/G23 16-bit microcontroller with 256 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V across –40 to +105°C industrial temperature range. It integrates capacitive touch sensing (CTSU2L), 12-bit ADC (26 channels), dual 8-bit DACs, RTC, and multiple serial interfaces including UARTA (up to 6 channels), IICA (up to 10 channels), and CSI (up to 8 channels), targeting low-power industrial HMI and sensor node applications.

For engineers reviewing the R7F100GFJ3CFP#AA0 datasheet, R7F100GFJ3CFP#AA0 pinout, R7F100GFJ3CFP#AA0 application, or R7F100GFJ3CFP#AA0 equivalent, key selection considerations include its 44-pin LQFP-0.8mm package, STOP-mode wakeup time < 4 µs, 41 µA/MHz active current, SNOOZE mode sequencer for autonomous peripheral sequencing, and hardware ELCL for event-driven logic without CPU intervention.

Technical Context

The RL78/G23 core implements a CISC architecture with 3-stage pipeline and configurable instruction timing-0.03125 µs min at 32 MHz (high-speed on-chip oscillator ±1.0%) or 30.5 µs at 32.768 kHz (subsystem clock). It supports multiply/divide/MAC instructions and 1 MB address space with four banks of 8×8-bit general-purpose registers.

Peripheral integration includes a Data Transfer Controller (DTC) supporting normal, repeat, and block transfer modes triggered by 128+ interrupt sources, plus a SNOOZE Mode Sequencer (SMS) executing up to 32 user-defined commands from 21 available opcodes-including compare, add, and conditional jump-to perform autonomous sensor polling or signal conditioning while CPU, flash, and RAM remain powered down.

Key Specifications

Pinout & Package

44-pin plastic LQFP (10 × 10 mm, 0.80-mm pitch), JEDEC standard PLQP0044GC-A/GE-A footprint, exposed pad not present in this variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GLJ3CFA#AA0, the R7F100GFJ3CFP#AA0 offers optimized cost and size for mid-complexity industrial control, while R7F100GFJ3CFB#AA0 provides identical functionality in a finer-pitch package for compact designs-both retain full compatibility with RL78/G23 development tools and middleware.

Availability

R7F100GFJ3CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, energy metering interfaces, and industrial remote controls requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7F100GFJ3CFP#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.

The RL78/G23 product line delivers ultra-low-power 16-bit MCUs optimized for industrial human-machine interfaces, sensor edge nodes, and appliance control-emphasizing energy efficiency, integrated analog, and autonomous peripheral operation.

FAQ

What is the maximum operating frequency and accuracy of the on-chip oscillator for R7F100GFJ3CFP#AA0?

The R7F100GFJ3CFP#AA0 supports a high-speed on-chip oscillator selectable from 1–32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = –20 to +85°C. At 32 MHz, the minimum instruction execution time is 0.03125 µs. This oscillator eliminates external crystal requirements for many applications while maintaining timing integrity for UART and USB communication.

Does R7F100GFJ3CFP#AA0 support capacitive touch sensing, and what configurations are available?

Yes, R7F100GFJ3CFP#AA0 integrates the CTSU2L capacitive sensing unit supporting both self-capacitance (up to 32 keys using single pins) and mutual-capacitance (up to 64 keys in 8×8 matrix) configurations. It operates across the full 1.8–5.5 V supply range and includes hardware noise cancellation, making it suitable for industrial-grade touch panels exposed to EMI and wide temperature swings.

What low-power modes does R7F100GFJ3CFP#AA0 offer, and how quickly can it wake from STOP mode?

R7F100GFJ3CFP#AA0 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode, current consumption drops to 210 nA (for 4 KB RAM retention); wakeup latency is less than 4 µs via external interrupt, RTC alarm, or peripheral event. The SNOOZE mode sequencer enables autonomous peripheral operation-including ADC sampling and comparison-without CPU involvement, further reducing system-level power.

Can R7F100GFJ3CFP#AA0 perform background data flash writes while executing code from main flash?

Yes, R7F100GFJ3CFP#AA0 supports Background Operation (BGO) for its 8 KB data flash memory. Code execution continues from main flash memory while data flash is being rewritten, enabling seamless firmware updates, parameter storage, or logging without halting real-time tasks-a critical capability for industrial controllers requiring uninterrupted operation.

What is the pin count, package type, and RoHS compliance status of R7F100GFJ3CFP#AA0?

R7F100GFJ3CFP#AA0 uses a 44-pin plastic LQFP package with 0.80-mm pitch (JEDEC PLQP0044GC-A/GE-A footprint) and is RoHS-compliant and lead-free. The #AA0 suffix indicates tray packaging per Renesas specification. This package balances I/O density, thermal performance, and manufacturability for industrial PCB assembly processes.