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Renesas R7F102GFC3CFP#AA0
- Part No.:
- R7F102GFC3CFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R7F102GFC3CFP#AA0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R7F102GFC3CFP#AA0 from Renesas is a 44-pin LQFP-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and integrated capacitive touch sensing for up to 29 keys. It operates from 1.6–5.5 V, achieves 37.5 µA/MHz active current and 200 nA STOP mode, and supports UART, I²C, SPI, RTC, and 10-bit ADC - deployed in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F102GFC3CFP#AA0 datasheet, R7F102GFC3CFP#AA0 pinout, R7F102GFC3CFP#AA0 application, or R7F102GFC3CFP#AA0 equivalent, key selection considerations include its 44-pin LQFP-0.8 mm pitch package, -40°C to +85°C temperature grade (2D), 32 KB flash/4 KB RAM memory configuration, CTSU2La capacitive touch unit, and SNOOZE mode sequencer for ultra-low-power wake-up sequencing without CPU involvement.
Technical Context
The RL78/G22 core implements a 3-stage pipeline CISC architecture with configurable instruction timing: 0.03125 µs min at 32 MHz (high-speed on-chip oscillator) or 30.5 µs at 32.768 kHz (subsystem clock). It integrates a dedicated SNOOZE mode sequencer (SMS) supporting 32 sequential operations using 21 command types - enabling autonomous low-power sensor polling and threshold evaluation without CPU, flash, or RAM activation.
Peripheral integration includes a 10-bit ADC with internal 1.48 V reference and temperature sensor, dual I²C interfaces (up to 6 channels total), UART/LIN support (up to 4 channels), and an Event Link Controller (ELC) routing 20 event signals between peripherals - eliminating software overhead for time-critical cross-peripheral triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; supports high-speed (32 MHz) and ultra-low-speed (32.768 kHz) operation modes |
| Memory | 32 KB code flash (2 KB block size), 2 KB data flash (1M rewrite cycles), 4 KB SRAM - enables secure firmware updates and background data logging |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; HALT/SNOOZE modes reduce system-level energy use in intermittent-sensing applications |
| Capacitive Touch | CTSU2La unit supporting 29 self-capacitance keys or matrix mutual-capacitance configurations - no external components required for touch button implementation |
| Timers & RTC | Eight 16-bit TAU channels; one 32-bit interval timer; RTC with alarm, calendar (1 sec–99 years), and clock correction - suitable for time-stamped data acquisition |
| ADC | 10-bit resolution, up to 10 analog inputs, internal 1.48 V reference and temperature sensor - eliminates need for external references in thermal monitoring |
| Operating Voltage | 1.6 V to 5.5 V single supply - compatible with coin cells, Li-ion, and 3.3/5 V rail systems without level-shifting |
Pinout & Package
44-pin LQFP package (10 × 10 mm, 0.80-mm pitch), RoHS-compliant, industrial-grade (TA = –40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Primary SPI clock or I²C clock input; also serves as capacitive touch channel 11 - shared function reduces pin count for mixed-protocol designs |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | UART receive, SPI input, I²C data, or touch channel 12 - multiplexing enables flexible peripheral assignment via PIOR register |
| P12 | SO00/TxD0/TOOLTxD/TS13 | UART transmit or SPI output with touch channel 13 - supports debug communication and touch sensing on same pin |
| P13 | TxD2/SO20/(SDAA0)/(TI04)/(TO04)/TS14 | Secondary UART transmit or SPI output; optional SDAA0/I²C alternate function; touch channel 14 - expands serial interface options without additional pins |
| P14 | RxD2/SI20/SDA20/(SCLA0)/(TI03)/(TO03)/TS15 | Secondary UART receive or SPI input; I²C data line; touch channel 15 - enables dual independent I²C buses or UART+SPI coexistence |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor capacitor connection, RTC 1 Hz output, or I²C/SPI clock - consolidates timing, sensing, and control functions |
| P60 | SCLA0 | Dedicated I²C clock line for first I²C interface - ensures reliable clock integrity for sensor bus communication |
| P61 | SDAA0 | Dedicated I²C data line for first I²C interface - supports standard/fast-mode I²C up to 400 kHz |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; accepts 1.6–5.5 V logic levels - simplifies reset circuit design across voltage domains |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply; separate analog/digital ground not required - reduces PCB layer count and BOM cost |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous operations (e.g., ADC sampling, comparison, GPIO toggle) without CPU wake-up - extends battery life in periodic sensor readout |
| Capacitive Touch Unit (CTSU2La) | Supports 29 self-capacitance keys or matrix configurations with built-in noise rejection - enables robust touch buttons on plastic/metal enclosures |
| Event Link Controller (ELC) | Routes 20 peripheral events (e.g., ADC EOC → DMA trigger) in hardware - eliminates interrupt latency and CPU load in real-time signal chains |
| Data Flash with Background Operation | 2 KB data flash allows firmware to execute from code flash while rewriting data flash - enables seamless over-the-air parameter updates |
| Multi-Speed On-Chip Oscillators | High-speed (32 MHz ±1%), middle-speed (1–4 MHz adjustable), and low-speed (32.768 kHz adjustable) oscillators - eliminates external crystals for most applications |
| Peripheral I/O Redirection (PIOR) | Reassigns up to 10 peripheral functions (e.g., UART, SPI, timers) to alternate pins - increases layout flexibility and avoids signal congestion |
Applications
| Industrial HMI Panels | Smart Thermostats |
|---|---|
Use Scenario: Wall-mounted HVAC control panel with touch sliders, temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main controller managing capacitive touch UI, 10-bit ADC readings, RTC-based scheduling, and UART-to-module communication. Use Value: Integrated CTSU2La eliminates external touch IC; 32 KB flash hosts UI firmware + OTA update handler; SNOOZE mode extends battery life during display-off periods. |
Use Scenario: Battery-powered programmable thermostat with ambient temperature sensing, schedule-based setpoint control, and BLE interface. IC Role / Device Role / Timing Role: System-on-chip handling temperature ADC, RTC calendar, capacitive button inputs, and UART-to-BLE bridge. Use Value: 200 nA STOP mode enables multi-year coin-cell operation; internal 1.48 V reference ensures stable ADC accuracy across voltage drop; LIN-compatible UART supports legacy HVAC bus integration. |
| Portable Medical Sensors | Asset Tracking Beacons |
Use Scenario: Disposable wearable patch measuring skin temperature and motion via accelerometer interface. IC Role / Device Role / Timing Role: Low-power sensor hub acquiring ADC data, processing touch alerts, and transmitting via UART to companion device. Use Value: 37.5 µA/MHz efficiency minimizes power draw during continuous sensing; CTSU2La supports tamper-detection touch zones; data flash stores calibration coefficients securely. |
Use Scenario: GPS-denied indoor asset tag reporting location via BLE and environmental conditions (temp/humidity). IC Role / Device Role / Timing Role: Edge node controller reading sensors, managing RTC timestamps, and driving BLE module via UART. Use Value: SNOOZE sequencer triggers periodic ADC reads and BLE wake-up without CPU - cuts average current to sub-µA; 44-pin LQFP provides ample GPIO for future sensor expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GFE3CFP#AA0 | 64 KB code flash, same 44-pin LQFP package, identical peripherals and pinout | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed | Select for larger application code footprint; no PCB change required |
| R7F102GFC3CFB#AA0 | Same 32 KB flash and peripherals, but 48-pin LFQFP (7 × 7 mm, 0.50-mm pitch) package | Needed when additional GPIO, ADC channels, or UART/I²C instances are required beyond 44-pin limits | Choose for higher I/O count; requires PCB redesign due to different footprint and pitch |
Compared with R7F102GFC3CFP#AA0, the R7F102GFE3CFP#AA0 offers double flash capacity with full pin and functional compatibility - ideal for scaling firmware without layout changes - while the R7F102GFC3CFB#AA0 trades package compactness for 4 extra pins and enhanced peripheral routing flexibility, necessitating board revision.
Availability
R7F102GFC3CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, portable medical sensors, asset tracking beacons, and battery-powered environmental monitors requiring stable component supply and long-term lifecycle support.
Supply support for R7F102GFC3CFP#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 delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interface and sensor-edge applications - combining capacitive touch, rich analog, and ultra-low-power modes in compact packages.
FAQ
What is the maximum operating frequency and supply voltage range for the R7F102GFC3CFP#AA0?
The R7F102GFC3CFP#AA0 operates at up to 32 MHz using its high-speed on-chip oscillator and supports a single-supply voltage range of 1.6 V to 5.5 V. Its ±1.0% oscillator accuracy (at VDD = 1.8–5.5 V, TA = –20°C to +85°C) eliminates need for external crystals in many timing-critical applications, and the wide voltage range enables direct interfacing with diverse power sources including coin cells and 3.3/5 V rails.
Does the R7F102GFC3CFP#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7F102GFC3CFP#AA0 integrates the CTSU2La capacitive touch sensing unit supporting up to 29 self-capacitance keys or matrix-based mutual-capacitance configurations. It operates across the full VDD range (1.8–5.5 V), includes built-in noise rejection, and requires no external components - enabling robust touch interfaces on plastic, glass, or metal overlays without dedicated touch controller ICs.
What low-power modes does the R7F102GFC3CFP#AA0 offer, and what are their typical current draws?
The R7F102GFC3CFP#AA0 provides HALT, STOP, and SNOOZE modes. STOP mode draws just 200 nA (typ.), HALT mode consumes ~1.2 µA (typ.) with RAM retention, and SNOOZE mode enables autonomous peripheral operation (e.g., ADC sampling, comparisons) at ~1.5 µA (typ.) without CPU, flash, or RAM activation - making it ideal for battery-powered sensor polling with minimal wake-up latency.
Can the R7F102GFC3CFP#AA0 execute code while writing to data flash memory?
Yes, the R7F102GFC3CFP#AA0 supports Background Operation (BGO) for its 2 KB data flash memory. This allows the CPU to execute instructions from code flash while simultaneously rewriting data flash - enabling seamless runtime parameter updates, field calibration storage, or firmware configuration changes without halting application execution.
What communication interfaces are integrated into the R7F102GFC3CFP#AA0, and how many instances are supported?
The R7F102GFC3CFP#AA0 integrates UART/LIN (up to 4 channels), I²C/Simplified I²C (up to 6 channels), and Simplified SPI/CSI (up to 5 channels). It includes dedicated SCLA0/SDAA0 pins for primary I²C and supports peripheral I/O redirection (PIOR) to assign secondary interfaces to alternate pins - providing flexible, concurrent multi-protocol connectivity for sensor hubs and industrial gateways.
R7F102GFC3CFP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- 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:
- Capacitive Touch, LVD, POR, PWM, WDT
- Number of I/O:
- 37
- 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:
R7F102GFC3CFP#AA0 FAQ
1.How can I place an order for R7F102GFC3CFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GFC3CFP#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 R7F102GFC3CFP#AA0 reliable?
The price and inventory of R7F102GFC3CFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GFC3CFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GFC3CFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GFC3CFP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GFC3CFP#AA0?
R7F102GFC3CFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GFC3CFP#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 R7F102GFC3CFP#AA0?
For technical support, including R7F102GFC3CFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GFC3CFP#AA0 requirements.
6.How does Aetrix verify that R7F102GFC3CFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GFC3CFP#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 R7F102GFC3CFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GFC3CFP#AA0?
All R7F102GFC3CFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GFC3CFP#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 R7F102GFC3CFP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GFC3CFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GFC3CFP#AA0 Tags
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