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Renesas R7F102GCC3CLA#AC0
- Part No.:
- R7F102GCC3CLA#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-WFLGA
- Datasheet:
-
R7F102GCC3CLA#AC0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:4,774
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Product details
Overview
R7F102GCC3CLA#AC0 from Renesas is a 36-pin WFLGA-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 V to 5.5 V, delivers 37.5 µA/MHz active current and 200 nA STOP-mode current, and supports industrial temperature range (−40°C to +105°C). It targets ultra-low-power human-machine interface applications such as smart appliance control panels.
For engineers reviewing the R7F102GCC3CLA#AC0 datasheet, R7F102GCC3CLA#AC0 pinout, R7F102GCC3CLA#AC0 application, or R7F102GCC3CLA#AC0 equivalent, key selection considerations include its 36-pin WFLGA (4 × 4 mm, 0.50-mm pitch) footprint, CTSU2La-based touch channel count, RTC accuracy, SNOOZE mode sequencer capability, and UART/I²C/SPI peripheral availability in this specific memory and temperature grade.
Technical Context
The R7F102GCC3CLA#AC0 implements the RL78 CPU core with CISC architecture and 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). It integrates a dedicated SNOOZE mode sequencer (SMS) that executes up to 32 low-power processes without CPU, flash, or RAM activation.
Its peripheral set includes a 10-bit A/D converter with 10 analog inputs, 8-channel 16-bit timer array unit (TAU), real-time clock with alarm and correction, watchdog timer, and configurable serial interfaces: up to 6 I²C/Simplified I²C channels, 4 UART/UARTA channels (LIN-capable), and 5 Simplified SPI (CSI) channels - all mapped to its 36-pin WFLGA I/O structure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-power interrupt latency. |
| Flash / RAM | 32 KB code flash + 2 KB data flash + 4 KB SRAM; supports background operation and boot swapping for robust firmware updates. |
| Operating Voltage | 1.6 V to 5.5 V; allows direct interfacing with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters. |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; enables battery-powered operation for >10 years in intermittent-sense applications. |
| Capacitive Touch | CTSU2La unit supporting up to 29 self- or mutual-capacitance keys; eliminates external touch controller ICs and reduces BOM cost. |
| Temperature Range | −40°C to +105°C (industrial grade); qualified for use in motor drives, HVAC controls, and factory automation nodes. |
| Real-Time Clock | RTC with calendar (1 sec–99 years), alarm, and hardware correction; maintains accurate timekeeping during STOP mode with no software overhead. |
Pinout & Package
Package: 36-pin WFLGA (4 × 4 mm, 0.50-mm pitch), lead-free, moisture-sensitive level 3 (MSL3), suitable for compact PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Shared SPI clock or I²C clock input; TS11 enables capacitive touch sensing on this pin. |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | Multi-function pin for SPI input, UART receive, debug RX, I²C data, or touch sense line - selected via register configuration. |
| P12 | SO00/TxD0/TOOLTxD/TS13 | Supports SPI output, UART transmit, debug TX, or touch sensing; enables full-duplex communication or HMI sensing on same pin group. |
| P13 | TxD2/SO20/(SDAA0)/(TI04)/(TO04)/TS14 | Second UART TX or SPI output; SDAA0 enables secondary I²C bus; TS14 adds touch sensing capability to same physical terminal. |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor reference capacitor connection, RTC 1-Hz output, or I²C/SPI clock - critical for low-power wake-up and timing synchronization. |
| P60 | SCLA0 | Dedicated I²C clock line for primary I²C interface; supports standard/fast-mode speeds up to 400 kHz. |
| P61 | SDAA0 | Dedicated I²C data line for primary I²C interface; enables direct connection to sensors, EEPROMs, or display controllers. |
| P121 | X1/XT1 | Primary crystal oscillator input (32.768 kHz or 1–20 MHz); required for precise RTC operation or high-accuracy system clock. |
| P122 | X2/EXCLK/XT2/EXCLKS | Crystal oscillator output or external clock input; supports bypass mode for single-ended clock sources or crystal-less designs. |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply rail; REGC pin requires 0.47–1 µF decoupling to VSS for stable internal regulator operation. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed touch, ADC, or timer operations autonomously - reduces average power by eliminating CPU wake-ups for routine sensing tasks. |
| Capacitive Touch Sensing Unit (CTSU2La) | Supports both self- and mutual-capacitance configurations on up to 29 pins; achieves <100-ms response time with built-in noise rejection for noisy industrial environments. |
| Data Flash with Background Operation (BGO) | 2 KB data flash allows concurrent program execution and non-volatile parameter storage (e.g., calibration data, user settings) without halting MCU operation. |
| Flexible Clock System | Three independent oscillators - high-speed (1–32 MHz ±1.0%), middle-speed (1–4 MHz adjustable), and low-speed (32.768 kHz adjustable) - enable dynamic clock scaling for optimal power/performance trade-offs. |
| Peripheral I/O Redirection (PIOR) | Allows remapping of UART, SPI, and timer outputs to alternate pins - increases PCB layout flexibility and simplifies routing in space-constrained designs. |
| Industrial Temperature Grade | Rated for −40°C to +105°C ambient operation; qualified per AEC-Q100 stress tests for reliability in harsh thermal environments like motor control enclosures. |
Applications
| Smart Appliance Control Panel | Industrial Human-Machine Interface (HMI) |
|---|---|
|
Use Scenario: Touch-enabled front panel for washing machines, ovens, or HVAC systems requiring reliable operation under variable humidity and EMI. IC Role / Device Role / Timing Role: Primary system controller managing touch input, display backlight, motor sequencing, and real-time cycle timing via integrated RTC. Use Value: CTSU2La's noise immunity and SNOOZE mode reduce false touches and extend battery life in cordless remote panels; 32 KB flash accommodates localized UI logic and safety firmware. |
Use Scenario: Local operator interface on PLC-mounted equipment, including status LEDs, emergency stop monitoring, and parameter adjustment. IC Role / Device Role / Timing Role: Standalone HMI node handling capacitive buttons, LED drivers, and RS-485/UART communication to main controller. Use Value: −40°C to +105°C rating ensures uninterrupted operation near motors or power converters; PIOR enables flexible pin assignment for legacy board reuse. |
| Energy-Efficient Smart Sensor Node | White Goods Motor Control Auxiliary MCU |
|
Use Scenario: Battery-powered environmental monitor (temperature/humidity/motion) deployed in building automation with multi-year runtime requirements. IC Role / Device Role / Timing Role: Low-power sensing hub aggregating ADC readings, touch wake events, and RTC-triggered data logging to external flash or BLE module. Use Value: 200 nA STOP current and BGO-capable data flash allow infrequent wake-ups and persistent storage without external EEPROM; 10-bit ADC provides sufficient resolution for NTC thermistors. |
Use Scenario: Secondary MCU in refrigerator or air conditioner inverters managing user interface, door switch detection, defrost cycle timing, and fan speed feedback. IC Role / Device Role / Timing Role: Dedicated subsystem controller offloading UI and auxiliary timing tasks from main motor control MCU to improve real-time determinism. Use Value: Integrated RTC with hardware correction maintains accurate defrost scheduling across voltage dips; TAU timers support precise PWM generation for small auxiliary fans or solenoids. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GCE3CLA#AC0 | Same 36-pin WFLGA package and industrial temp grade, but with 64 KB code flash and identical peripheral set. | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed; no PCB change required. | Select R7F102GCE3CLA#AC0 if application demands larger code space for OTA updates, cryptographic libraries, or enhanced UI assets. |
| R7F102GCC3CNP#AA0 | Same 32 KB flash, 4 KB RAM, and CTSU2La, but in 32-pin HWQFN (5 × 5 mm) package with different pinout and no WFLGA footprint. | Used where board space permits larger package or where exposed die pad thermal performance is prioritized over miniaturization. | Choose R7F102GCC3CNP#AA0 only if mechanical constraints favor HWQFN or thermal dissipation requirements exceed WFLGA capability. |
Compared with R7F102GCC3CLA#AC0, R7F102GCE3CLA#AC0 offers double code flash without altering pin compatibility or power profile, while R7F102GCC3CNP#AA0 trades miniaturization for thermal margin and alternate routing flexibility - neither is pin-compatible, but both share identical peripheral functionality and register mapping.
Availability
R7F102GCC3CLA#AC0 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, energy-efficient sensor nodes, and white goods auxiliary control requiring stable component supply across long production lifecycles.
Supply support for R7F102GCC3CLA#AC0 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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial HMI applications - emphasizing capacitive touch integration, robust real-time performance, and extended temperature reliability.
FAQ
What is the operating temperature range specified for the R7F102GCC3CLA#AC0?
The R7F102GCC3CLA#AC0 is rated for industrial operation from −40°C to +105°C ambient temperature, as confirmed by Renesas' RL78/G22 datasheet revision 1.20. This specification applies to the full functional operation of its CPU core, flash memory, CTSU2La touch unit, RTC, and all listed peripherals - making it suitable for deployment in motor drives, HVAC systems, and factory-floor HMIs where thermal extremes are expected. The "3" in the part number explicitly denotes the +105°C maximum junction temperature grade.
Does the R7F102GCC3CLA#AC0 support capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102GCC3CLA#AC0 integrates the CTSU2La capacitive touch sensing unit and supports up to 29 keys using either self-capacitance (one pin per key) or mutual-capacitance (matrix configuration) methods. Its design enables operation across the full 1.8–5.5 V supply range, and the SNOOZE mode sequencer allows autonomous touch scanning without CPU intervention - reducing average current consumption in always-on HMI applications. All 29 channels are electrically validated for this specific 36-pin WFLGA variant.
What is the flash memory capacity of the R7F102GCC3CLA#AC0, and does it support in-application programming?
The R7F102GCC3CLA#AC0 contains 32 KB of code flash memory and 2 KB of data flash memory. It fully supports self-programming with boot swapping and flash shield window protection, enabling secure firmware updates in the field. Background operation (BGO) is available for the data flash, allowing the CPU to execute code from program memory while simultaneously rewriting data flash contents - essential for logging operational parameters or storing calibrated sensor offsets without system interruption.
Which communication interfaces are available on the R7F102GCC3CLA#AC0, and how many instances does each support?
The R7F102GCC3CLA#AC0 provides up to 6 I²C/Simplified I²C channels, 4 UART/UARTA channels (with LIN-bus support), and 5 Simplified SPI (CSI) channels. These are physically distributed across its 36-pin WFLGA package, with multiple functions multiplexed per pin (e.g., P10 supports SCK00 or SCL00; P60/P61 are dedicated SCLA0/SDAA0). All interfaces operate within the 1.6–5.5 V supply range and are accessible via standard register sets documented in the RL78/G22 User's Manual.
What package type and pin count does the R7F102GCC3CLA#AC0 use, and what are its key mechanical features?
The R7F102GCC3CLA#AC0 uses a 36-pin WFLGA (Wafer-Level Glass Array) package measuring 4 mm × 4 mm with 0.50-mm pitch, per Renesas' ordering information in datasheet R01DS0424EJ0120. It is lead-free, RoHS-compliant, and classified as MSL3 (moisture sensitivity level 3). The bottom-side ball layout supports fine-pitch reflow assembly, and the absence of an exposed die pad distinguishes it from HWQFN variants - simplifying thermal design but requiring careful PCB stack-up for signal integrity in high-noise environments.
R7F102GCC3CLA#AC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-WFLGA
- 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:
- 31
- 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 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GCC3CLA#AC0 FAQ
1.How can I place an order for R7F102GCC3CLA#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GCC3CLA#AC0 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 R7F102GCC3CLA#AC0 reliable?
The price and inventory of R7F102GCC3CLA#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GCC3CLA#AC0 is usually 5 days.
3.What payment methods are accepted for R7F102GCC3CLA#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GCC3CLA#AC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GCC3CLA#AC0?
R7F102GCC3CLA#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GCC3CLA#AC0 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 R7F102GCC3CLA#AC0?
For technical support, including R7F102GCC3CLA#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GCC3CLA#AC0 requirements.
6.How does Aetrix verify that R7F102GCC3CLA#AC0 is sourced from the original manufacturer or authorized distributors?
All R7F102GCC3CLA#AC0 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 R7F102GCC3CLA#AC0 meets industry standards.
7.What is the process for return or replacement of R7F102GCC3CLA#AC0?
All R7F102GCC3CLA#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GCC3CLA#AC0, 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 R7F102GCC3CLA#AC0 part is unused and in its original packaging.
Return procedure for R7F102GCC3CLA#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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