Renesas R7F100GGG3CNP#UA0
- Part No.:
- R7F100GGG3CNP#UA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7F100GGG3CNP#UA0.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G23 128K
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F100GGG3CNP#UA0 from Renesas is a 48-pin HWQFN-packaged RL78/G23 16-bit microcontroller with 128 KB code flash, 8 KB data flash, and 16 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 (CTSU2L), and dual-clock domain operation supporting high-speed (32 MHz) and ultra-low-speed (32.768 kHz) modes for industrial sensor nodes and battery-powered HMI devices.
For engineers reviewing the R7F100GGG3CNP#UA0 datasheet, R7F100GGG3CNP#UA0 pinout, R7F100GGG3CNP#UA0 application, or R7F100GGG3CNP#UA0 equivalent, key selection criteria include its 48-pin HWQFN-0.5 mm pitch package, industrial-grade temperature range (−40 to +105°C), CTSU2L-based touch interface capability, and SNOOZE mode sequencer for autonomous low-power event processing without CPU wake-up.
Technical Context
The R7F100GGG3CNP#UA0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting configurable instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its dual-clock system integrates independent high-, middle-, and low-speed on-chip oscillators-enabling precise timing control across operational modes including HALT, STOP, and SNOOZE.
Peripheral integration includes a 21-command SNOOZE mode sequencer (SMS) for autonomous sensor polling and threshold comparison, an Event Link Controller (ELCL) for hardware-triggered peripheral chaining, and a Capacitive Touch Sensing Unit (CTSU2L) supporting up to 64 keys in mutual-capacitance matrix configuration-all operating without CPU intervention during low-power states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and ultra-low-power operation |
| Operating Voltage | 1.6–5.5 V; supports direct connection to single-cell Li-ion, 3.3 V, or 5 V rails without external regulators |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention (4 KB RAM); reduces battery drain in always-on applications |
| Memory | 128 KB code flash / 8 KB data flash / 16 KB RAM; sufficient for firmware, parameter storage, and real-time buffers |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix, 64 keys); eliminates need for external touch controllers |
| Temperature Range | −40 to +105°C (industrial grade); validated for use in motor drives, PLC I/O modules, and HVAC controls |
| Clock Sources | High-speed on-chip oscillator (±1.0% accuracy at 32 MHz); low-speed 32.768 kHz oscillator with adjustability; enables RTC and precise sleep/wake timing |
Pinout & Package
Package: 48-pin HWQFN (7 × 7 mm, 0.50-mm pitch), exposed die pad recommended to be connected to VSS for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Serial array unit (SAU) channels | Support UARTA, simplified SPI (CSI), and I²C interfaces; enable multi-protocol communication with sensors and displays |
| P20–P23, P147 | Analog input / comparator / reference | 8-channel 10-bit ADC inputs with internal 1.48 V reference and temperature sensor; support analog monitoring and threshold detection |
| P30–P31, P50–P51, P60–P62, P70–P73 | Capacitive touch sensing (CTSU2L) | Dedicated CTSU2L pins enabling self- and mutual-capacitance touch acquisition; no external components required for touch buttons/sliders |
| P121/P122 | Crystal oscillator inputs | Support external 32.768 kHz crystal for RTC accuracy or high-frequency crystal for precision timing |
| REGC | Regulator capacitor terminal | Must be connected to VSS via 0.47–1 µF capacitor; stabilizes internal voltage regulator for reliable low-power operation |
| VDD/VSS | Power supply terminals | Single-supply operation; VDD accepts 1.6–5.5 V; VSS serves as analog/digital ground reference |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 sequential commands (e.g., ADC sampling, comparison, GPIO toggle) autonomously-no CPU, flash, or RAM required during operation |
| Event Link Controller (ELCL) | Hardware-configurable logic linking peripheral events (e.g., timer overflow → ADC trigger → DMA transfer), reducing software overhead and interrupt latency |
| Background Data Flash Rewrite | Enables BGO (background operation): CPU executes code from program memory while rewriting 8 KB data flash-critical for field-upgradable parameter storage |
| Capacitive Touch Sensing Unit (CTSU2L) | Supports both self-capacitance (single-pin keys) and mutual-capacitance (matrix) with built-in noise cancellation-eliminates external touch ICs in HMI designs |
| Real-Time Clock (RTC) | Full calendar (seconds to years), alarm interrupt, and clock correction; operates independently in STOP mode using 32.768 kHz subsystem clock |
Applications
| Industrial Sensor Node | Smart Thermostat HMI |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node deployed in factory environments with wireless telemetry. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, low-power scheduling, and RF transmission timing via SNOOZE sequencer and RTC. Use Value: 210 nA data retention preserves configuration and calibration data for >10 years on coin cell; CTSU2L enables touch wake-up without dedicated button controller. | Use Scenario: Residential smart thermostat with capacitive touch panel, local display, and HVAC control outputs. IC Role / Device Role / Timing Role: System-on-chip handling touch UI, ambient sensing, relay/valve actuation, and real-time scheduling via RTC and TAU timers. Use Value: Integrated 10-bit ADC and CTSU2L reduce BOM count by 3 components; 128 KB flash accommodates OTA update stack and UI assets. |
| Programmable Logic Controller I/O Module | Energy Meter Front-End |
Use Scenario: DIN-rail mounted I/O expansion module for industrial PLCs, monitoring discrete inputs and driving relays. IC Role / Device Role / Timing Role: Dedicated I/O processor interfacing with optocoupled inputs, driving controlled-current outputs, and communicating via UART to main PLC CPU. Use Value: Controlled-current drive ports (6–8 pins) directly sink/sink 20 mA loads; ELCL enables hardware-triggered input-to-output response <1 µs. | Use Scenario: Residential electricity meter front-end acquiring voltage/current waveforms and computing RMS, harmonics, and energy totals. IC Role / Device Role / Timing Role: Analog acquisition engine with 10-bit ADC, real-time computation offload, and secure parameter storage in data flash. Use Value: Background data flash rewrite (1M cycles) enables secure firmware updates and tariff table changes without service interruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLG3CNP#UA0 | Same 48-pin HWQFN package, but with 512 KB code flash, 48 KB RAM, and identical peripherals | Targeted at applications requiring larger firmware footprint (e.g., protocol stacks, GUI rendering) and extended RAM for buffering | Select when future firmware growth or real-time data logging demands >128 KB flash and >16 KB RAM |
| R7F100GGG3CFB#UA0 | Same memory (128 KB/16 KB), same core/peripherals, but in 48-pin LFQFP (7 × 7 mm, 0.50-mm pitch) package | Preferred where PCB assembly uses leaded QFP processes or requires easier rework/debug access | Choose for legacy assembly lines or prototyping where HWQFN soldering is constrained |
Compared with R7F100GGG3CNP#UA0, the R7F100GLG3CNP#UA0 offers scalable memory headroom for complex firmware, while the R7F100GGG3CFB#UA0 provides identical functionality in a more manufacturable LFQFP package-neither is pin-compatible, but both share identical register mapping and software compatibility.
Availability
R7F100GGG3CNP#UA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat HMIs, PLC I/O modules, energy meter front-ends, and battery-powered control panels requiring stable component supply across long production lifecycles.
Supply support for R7F100GGG3CNP#UA0 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 performance for cost-sensitive industrial and consumer applications, integrating capacitive touch, real-time peripherals, and ultra-low-power modes into a single compact MCU platform.
FAQ
What is the maximum operating frequency of the R7F100GGG3CNP#UA0?
The R7F100GGG3CNP#UA0 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.03125 µs. The device also supports ultra-low-speed operation at 32.768 kHz for RTC and deep-sleep functions, with the RL78 core dynamically switching between clock domains without software intervention.
Does the R7F100GGG3CNP#UA0 support capacitive touch sensing, and how many keys can it handle?
Yes, the R7F100GGG3CNP#UA0 integrates the CTSU2L (Capacitive Touch Sensing Unit Level 2) supporting both self-capacitance and mutual-capacitance methods. In self-capacitance mode, it handles up to 32 keys using single pins; in mutual-capacitance matrix mode (8 × 8), it supports up to 64 keys-enabling full touchpad or keypad implementation without external ICs.
What are the power supply requirements for the R7F100GGG3CNP#UA0?
The R7F100GGG3CNP#UA0 operates from a single supply voltage of 1.6 V to 5.5 V. The REGC pin must be connected to VSS via a 0.47–1 µF capacitor to stabilize the internal voltage regulator. No external reset circuitry is needed-the integrated POR (power-on-reset) and dual LVDs (voltage detectors) ensure robust startup and brown-out protection across the full industrial temperature range.
Can the R7F100GGG3CNP#UA0 perform background data flash writes while executing code?
Yes, the R7F100GGG3CNP#UA0 supports Background Operation (BGO) for its 8 KB data flash memory. During BGO, the CPU continues executing instructions from code flash while the data flash is being rewritten-enabling seamless parameter updates, calibration storage, or firmware patching without halting real-time tasks or user interaction.
What debugging interfaces are supported by the R7F100GGG3CNP#UA0?
The R7F100GGG3CNP#UA0 supports on-chip debugging via the TOOL0 (SWD/JTAG-compatible) pin and dedicated TOOLRxD/TOOLTxD pins for serial wire debug and UART-based programming. It includes full on-chip debugging features-including breakpoints, watchpoints, and real-time variable inspection-without requiring external debug probes beyond standard SWD adapters.
R7F100GGG3CNP#UA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RL78/G23
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 10x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GGG3CNP#UA0 FAQ
1.How can I place an order for R7F100GGG3CNP#UA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GGG3CNP#UA0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R7F100GGG3CNP#UA0 reliable?
The price and inventory of R7F100GGG3CNP#UA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GGG3CNP#UA0 is usually 5 days.
3.What payment methods are accepted for R7F100GGG3CNP#UA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GGG3CNP#UA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GGG3CNP#UA0?
R7F100GGG3CNP#UA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GGG3CNP#UA0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R7F100GGG3CNP#UA0?
For technical support, including R7F100GGG3CNP#UA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GGG3CNP#UA0 requirements.
6.How does Aetrix verify that R7F100GGG3CNP#UA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GGG3CNP#UA0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R7F100GGG3CNP#UA0 meets industry standards.
7.What is the process for return or replacement of R7F100GGG3CNP#UA0?
All R7F100GGG3CNP#UA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GGG3CNP#UA0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R7F100GGG3CNP#UA0 part is unused and in its original packaging.
Return procedure for R7F100GGG3CNP#UA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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