Renesas R7F102GGC3CNP#AA0
- Part No.:
- R7F102GGC3CNP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7F102GGC3CNP#AA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:

- Shipping:

Inventory:1,301
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Product details
Overview
R7F102GGC3CNP#AA0 from Renesas is a 48-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and 2 KB data flash, operating from 1.6–5.5 V. It delivers ultra-low power consumption (37.5 µA/MHz active, 200 nA STOP mode), integrates 10-channel 10-bit ADC, RTC, capacitive touch support for up to 29 keys, and multiple serial interfaces including UART, I²C, and SPI - deployed in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F102GGC3CNP#AA0 datasheet, R7F102GGC3CNP#AA0 pinout, R7F102GGC3CNP#AA0 application, or R7F102GGC3CNP#AA0 equivalent, key selection criteria include its 48-pin HWQFN-0.5 mm pitch package, 32 KB flash/4 KB RAM memory configuration, STOP-mode current of 200 nA, CTSU2La capacitive sensing unit, and dual UART + dual I²C interface capability for compact embedded control designs.
Technical Context
The R7F102GGC3CNP#AA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). It features SNOOZE mode sequencer (SMS) enabling low-power background processing without CPU, flash, or RAM activation.
Peripheral integration includes Event Link Controller (ELC) for 20 configurable event signals between peripherals, Data Transfer Controller (DTC) with chain transfer, and CTSU2La capacitive sensing unit supporting both self- and mutual-capacitance methods across up to 29 pins - all operating within -40°C to +105°C ambient temperature range for industrial applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing (0.03125–30.5 µs) |
| Flash / RAM | 32 KB code flash + 2 KB data flash + 4 KB on-chip RAM - supports BGO, boot swapping, and flash shield window |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode - enables multi-year battery life in sensor endpoints |
| ADC | 10-bit resolution, 10 analog input channels, internal 1.48 V reference and temperature sensor |
| Capacitive Sensing | CTSU2La unit supporting up to 29 keys via self-capacitance or matrix mutual-capacitance configurations |
| Timers | Eight 16-bit TAU channels; one 32-bit interval timer; RTC with alarm and correction; watchdog timer |
| Serial Interfaces | Up to 4 UART/UARTA (LIN-capable), 6 I²C/Simplified I²C, and 5 CSI (SPI-compatible) channels |
Pinout & Package
48-pin HWQFN package (7 × 7 mm, 0.50-mm pitch), exposed die pad recommended to be connected to VSS. Pin functions include dual UART, dual I²C, 10-channel ADC, RTC, CTSU2La touch inputs, and programmable peripheral I/O redirection (PIOR).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P12, P14–P17, P20–P26, P30–P31, P40, P50–P51, P60–P62, P70–P73, P120–P124, P137, P147 | Digital I/O / Peripheral Multiplex | Configurable as GPIO, UART, I²C, CSI, TAU, RTC, CTSU2La, or ADC inputs - PIOR enables dynamic function remapping |
| VDD / VSS | Power Supply | Single 1.6–5.5 V supply rail; VSS serves as analog/digital ground reference and exposed die pad connection point |
| REGC | Regulator Decoupling | Must be connected to VSS via 0.47–1 µF capacitor to stabilize internal voltage regulator output |
| RESET | System Reset | Active-low asynchronous reset input; internally pulled up; compatible with external reset ICs or manual pushbutton |
| X1/X2 / EXCLK / XT1/XT2 | System Clock Input | Supports crystal (32.768 kHz or 1–20 MHz), external clock, or resonator; enables precise RTC and high-accuracy timing |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 sequential operations (from 21 command types) without CPU wake-up - reduces average system power by >90% in periodic sensing |
| Background Operation (BGO) | Enables full CPU execution from code flash while rewriting 2 KB data flash - eliminates interrupt latency during firmware updates or logging |
| Event Link Controller (ELC) | Routes 20 peripheral events directly (e.g., ADC end-of-conversion → DMA trigger) without CPU intervention - cuts ISR overhead and jitter |
| Capacitive Touch Unit (CTSU2La) | Hardware-accelerated touch sensing with built-in noise rejection and auto-calibration - supports robust 29-key HMI on single MCU without external IC |
| Peripheral I/O Redirection (PIOR) | Runtime reassignment of up to 12 peripheral functions to alternate pins - simplifies PCB layout and enables pin reuse across variants |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Compact front-panel interface for PLCs and motor drives with touch buttons, LED indicators, and status display. IC Role / Device Role / Timing Role: Main controller executing UI logic, driving LEDs via PWM, scanning capacitive keys, and communicating via UART to host controller. Use Value: Integrated CTSU2La eliminates external touch controller; 200 nA STOP mode extends battery backup life during panel idle periods. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in remote locations. IC Role / Device Role / Timing Role: System-on-chip managing ADC sampling, RTC-triggered wake-up, data flash logging, and UART/LoRaWAN transmission. Use Value: 37.5 µA/MHz active current and BGO enable continuous sensor polling and background flash writes without compromising runtime. |
| Energy Meter Interface | Home Appliance Control |
|
Use Scenario: Communication bridge and local display module in DIN-rail energy meters interfacing with metrology ICs and LCD. IC Role / Device Role / Timing Role: Handles SPI-based metrology data acquisition, real-time tariff calculation, LCD refresh, and RS-485 Modbus communication. Use Value: Dual UART + dual I²C + SPI support allows concurrent metrology IC, display, and communication interface management on single chip. |
Use Scenario: Main control MCU in washing machines, microwaves, or HVAC systems requiring touch UI, motor control, and safety monitoring. IC Role / Device Role / Timing Role: Executes appliance state machine, reads capacitive touch keys, drives triac/motor drivers via TAU PWM, and monitors overtemperature via ADC. Use Value: On-chip 10-bit ADC with internal reference and 16-bit TAU timers eliminate need for external signal conditioning and timing ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GGE3CNP#AA0 | Same package and pinout; 64 KB code flash, 2 KB data flash, 4 KB RAM - no change in peripheral set or power specs | Preferred where firmware size exceeds 32 KB or future-proofing for feature expansion is required | Select when larger code space is needed without altering hardware design or layout |
| R7F102GGC3CFB#AA0 | Same 32 KB flash/4 KB RAM spec but in 48-pin LFQFP (7 × 7 mm, 0.50-mm pitch); identical electrical specs and peripheral mapping | Used where QFN thermal performance is not critical and through-hole or standard LGA assembly is preferred | Choose for compatibility with existing LFQFP footprint or simplified reflow process in high-volume production |
Compared with R7F102GGC3CNP#AA0, R7F102GGE3CNP#AA0 offers double flash capacity for complex firmware, while R7F102GGC3CFB#AA0 provides identical functionality in an LFQFP package - enabling layout reuse or thermal trade-off decisions without firmware changes.
Availability
R7F102GGC3CNP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and energy meter interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for R7F102GGC3CNP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line targets cost-sensitive, ultra-low-power embedded applications in industrial controls and consumer appliances - delivering optimized balance of performance, peripheral richness, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for R7F102GGC3CNP#AA0?
R7F102GGC3CNP#AA0 operates up to 32 MHz using the high-speed on-chip oscillator, with guaranteed functionality across 1.6–5.5 V supply voltage. At 32 MHz, minimum instruction execution time is 0.03125 µs; voltage tolerance ensures stable operation in noisy industrial environments and battery-voltage drift scenarios.
Does R7F102GGC3CNP#AA0 support hardware-accelerated capacitive touch sensing?
Yes, R7F102GGC3CNP#AA0 integrates the CTSU2La capacitive sensing unit supporting up to 29 keys using self-capacitance or mutual-capacitance matrix configurations. It includes built-in noise cancellation, auto-calibration, and dedicated hardware timing - eliminating need for external touch controllers or software-intensive polling routines.
How many UART, I²C, and SPI interfaces does R7F102GGC3CNP#AA0 provide?
R7F102GGC3CNP#AA0 supports up to four UART/UARTA channels (including LIN-bus capability), six I²C/Simplified I²C channels, and five CSI (SPI-compatible) channels. These interfaces are fully multiplexed across GPIO pins and configurable via the Peripheral I/O Redirection (PIOR) register for flexible board-level routing.
What is the data flash endurance and background operation capability of R7F102GGC3CNP#AA0?
R7F102GGC3CNP#AA0 includes 2 KB of data flash rated for 1,000,000 write/erase cycles (typical). It supports Background Operation (BGO), allowing CPU code execution from program memory while simultaneously rewriting data flash - essential for reliable firmware updates and nonvolatile data logging without system interruption.
Is R7F102GGC3CNP#AA0 qualified for industrial temperature range operation?
Yes, R7F102GGC3CNP#AA0 is specified for operation from -40°C to +105°C (3C grade), making it suitable for industrial automation, motor control, and outdoor sensor applications. This rating covers full functionality of all peripherals including ADC, RTC, CTSU2La, and serial interfaces across the entire temperature range.
R7F102GGC3CNP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RL78/G22
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GGC3CNP#AA0 FAQ
1.How can I place an order for R7F102GGC3CNP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GGC3CNP#AA0 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 R7F102GGC3CNP#AA0 reliable?
The price and inventory of R7F102GGC3CNP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GGC3CNP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GGC3CNP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GGC3CNP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GGC3CNP#AA0?
R7F102GGC3CNP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GGC3CNP#AA0 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 R7F102GGC3CNP#AA0?
For technical support, including R7F102GGC3CNP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GGC3CNP#AA0 requirements.
6.How does Aetrix verify that R7F102GGC3CNP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GGC3CNP#AA0 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 R7F102GGC3CNP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GGC3CNP#AA0?
All R7F102GGC3CNP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GGC3CNP#AA0, 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 R7F102GGC3CNP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GGC3CNP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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