Renesas R7F100GGJ2DNP#HA0

Overview

R7F100GGJ2DNP#HA0 from Renesas is a 48-pin, consumer-grade 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. 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 battery-powered home appliance control.

For engineers reviewing the R7F100GGJ2DNP#HA0 datasheet, R7F100GGJ2DNP#HA0 pinout, R7F100GGJ2DNP#HA0 application, or R7F100GGJ2DNP#HA0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm package, STOP-mode wakeup latency < 4 µs, SNOOZE mode sequencer for autonomous sensor polling, and hardware-accelerated CTSU2L capacitive sensing engine.

Technical Context

The R7F100GGJ2DNP#HA0 implements the RL78 CPU core with a 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 executes up to 32 preconfigured commands-including ADC sampling, comparator comparison, and register arithmetic-without CPU intervention, enabling sub-µA average current in periodic sensing tasks.

Peripheral integration includes a Logic and Event Link Controller (ELCL) that routes signals between timers, ADCs, and communication interfaces via configurable logic gates and flip-flops; a Data Transfer Controller (DTC) supporting chain transfers across UART, I²C, and SPI; and a Realtime Clock with alarm, calendar, and ±1 ppm correction capability over temperature.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.50-mm pitch), lead-free, RoHS-compliant, embossed tape packaging (#HA0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F100GLJ2DFA#HA0 and R7F100GEJ2DNP#HA0, the R7F100GGJ2DNP#HA0 uniquely balances 48-pin compactness, 256 KB flash headroom for OTA updates, and CTSU2L touch performance-making it optimal for mid-tier smart home controllers where cost, size, and feature integration must coexist.

Availability

R7F100GGJ2DNP#HA0 is available at Aetrix Electronics and suitable for smart thermostat interfaces, wireless sensor nodes, appliance motor control, medical patient monitor front-ends, and industrial HMI panels requiring stable component supply across multi-year production cycles.

Supply support for R7F100GGJ2DNP#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, delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G23 product line targets ultra-low-power embedded applications demanding robust capacitive touch, rich analog integration, and secure firmware updates-designed specifically for battery-operated consumer and industrial edge devices.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R7F100GGJ2DNP#HA0?

The R7F100GGJ2DNP#HA0 operates at up to 32 MHz using its high-speed on-chip oscillator, with guaranteed functionality across the full 1.6–5.5 V supply range. At 32 MHz, minimum VDD is 2.7 V per the datasheet's AC characteristics table; operation below 2.7 V requires scaling frequency downward (e.g., 24 MHz at 2.4 V, 16 MHz at 1.8 V) to maintain timing compliance.

Does the R7F100GGJ2DNP#HA0 support hardware-based AES encryption or secure boot features?

No, the R7F100GGJ2DNP#HA0 does not include hardware AES accelerators or dedicated secure boot circuitry. It provides flash security functions such as block erase/write prohibition and flash shield window for IP protection, but cryptographic operations must be implemented in software. For secure boot requirements, Renesas recommends the RA family or RL78/G23 variants with TrustZone-enabled derivatives-not this specific part.

How many capacitive touch channels can the R7F100GGJ2DNP#HA0 support in mutual-capacitance mode, and what is the minimum electrode pitch?

In mutual-capacitance mode, the R7F100GGJ2DNP#HA0 supports up to 64 keys using an 8×8 matrix configuration. The CTSU2L unit requires minimum electrode pitch of 2.5 mm for reliable signal-to-noise ratio at 5 V VDD; Renesas' recommended layout guidelines specify 3.0 mm pitch with 1.0 mm trace width and 0.2 mm clearance to ground pour for production-grade robustness.

Can the R7F100GGJ2DNP#HA0's data flash be rewritten while the CPU executes code from main flash memory?

Yes, the R7F100GGJ2DNP#HA0 supports Background Operation (BGO) for data flash. Code execution continues uninterrupted from main flash memory during data flash erase/write cycles, with no CPU stall or interrupt latency penalty. This enables seamless firmware parameter updates or logging without disrupting real-time control loops or communication stacks.

What debug interface does the R7F100GGJ2DNP#HA0 use, and is JTAG supported?

The R7F100GGJ2DNP#HA0 uses Renesas' on-chip debugging interface via the TOOL0 (pin 1) and TOOLRxD/TOOLTxD (pins 25/24) signals-compatible with E2 studio and Renesas Flash Programmer. JTAG is not supported; debugging relies on the proprietary FINE (Fast In-Circuit Emulator) interface, which provides full breakpoint, watchpoint, and memory inspection capabilities at 32 MHz operation.