Renesas R7F100GFJ3CFP#HA0

Overview

R7F100GFJ3CFP#HA0 from Renesas is a 44-pin LQFP-packaged 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 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 data retention). Used in industrial HMI panels requiring reliable low-power operation and integrated analog peripherals.

For engineers reviewing the R7F100GFJ3CFP#HA0 datasheet, R7F100GFJ3CFP#HA0 pinout, R7F100GFJ3CFP#HA0 application, or R7F100GFJ3CFP#HA0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, 256 KB flash/24 KB RAM memory configuration, C-grade industrial qualification (-40 to +105°C), and support for SNOOZE mode sequencer and ELCL event linking-critical for deterministic low-power sensor interface designs.

Technical Context

The R7F100GFJ3CFP#HA0 implements the RL78 CPU core with 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 SNOOZE mode sequencer (SMS) executes up to 32 predefined commands-including ADC sampling, comparison, and conditional branching-without CPU wake-up, enabling autonomous low-power periodic sensing.

Peripheral integration includes Logic and Event Link Controller (ELCL) for hardware-triggered signal routing between modules (e.g., timer overflow → ADC start), and CTSU2L capacitive sensing unit supporting both self-capacitance (32 keys) and mutual capacitance (8×8 matrix) configurations with built-in noise rejection-validated for industrial panel applications with plastic overlays.

Key Specifications

Pinout & Package

44-pin LQFP (10 × 10 mm, 0.80-mm pitch), JEDEC standard PLQP0044GC-A footprint. Exposed pad not present; thermal dissipation handled via PCB copper area under package body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GLJ3CFA#AA0, the R7F100GFJ3CFP#HA0 offers optimized cost and board space for mid-complexity industrial controls, while R7F100GFJ3CFP#AA0 provides identical performance with logistics flexibility for low-volume builds-neither requires schematic or layout changes relative to the original design.

Availability

R7F100GFJ3CFP#HA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, programmable logic controllers, energy metering interfaces, and battery-backed real-time clock modules requiring stable component supply across extended product lifecycles.

Supply support for R7F100GFJ3CFP#HA0 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 headquartered in Tokyo, Japan, 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 targeting cost-sensitive industrial and consumer applications requiring long battery life, integrated analog, and robust EMC performance-designed specifically for HMI, sensor hubs, and appliance control.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R7F100GFJ3CFP#HA0?

The R7F100GFJ3CFP#HA0 operates at up to 32 MHz using the high-speed on-chip oscillator, with guaranteed functionality across its full 1.6–5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs; accuracy is ±1.0% over -40 to +85°C ambient, and ±2.0% over the full -40 to +105°C industrial range per R01DS0395EJ0140 Rev.1.40 Section 1.1.

Does the R7F100GFJ3CFP#HA0 support hardware debugging, and what interface is used?

Yes, the R7F100GFJ3CFP#HA0 supports on-chip debugging via the dedicated TOOL0 (pin 5), TOOLRxD (P11), and TOOLTxD (P12) pins, implementing Renesas' FINE interface. This enables full breakpoint, step-through, and memory inspection capabilities using E2 studio and compatible debug probes-no external debug header required.

How many capacitive touch channels does the R7F100GFJ3CFP#HA0 support, and what configurations are available?

The R7F100GFJ3CFP#HA0 integrates the CTSU2L unit supporting up to 32 self-capacitance keys (single-pin electrodes) or 64 mutual-capacitance keys (8×8 matrix) with built-in noise cancellation. Pin assignments include P20–P23, P30–P31, and P50–P51 as configurable CTSU channels, all operating within the 1.8–5.5 V VDD range per Section 1.1 of the datasheet.

What is the endurance and retention specification for the data flash memory in the R7F100GFJ3CFP#HA0?

The R7F100GFJ3CFP#HA0 includes 8 KB of data flash memory rated for 1,000,000 write/erase cycles (typical) with 20-year data retention at +85°C ambient. Background operation (BGO) allows concurrent code execution and data flash rewriting, enabling safe field updates without halting real-time tasks.

Can the R7F100GFJ3CFP#HA0 operate from a single 3.3 V supply, and are level-shifters needed for 5 V peripherals?

Yes, the R7F100GFJ3CFP#HA0 operates fully within 1.6–5.5 V, so a regulated 3.3 V supply is valid and commonly used. Its I/O pins are 5 V tolerant on selected ports (N-ch open-drain with 6 V withstand voltage), allowing direct interface to 5 V peripherals without external level shifters-confirmed in Section 1.1 "Input/output port pins" of R01DS0395EJ0140.