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Renesas R7F102G8C3CLA#HC0
- Part No.:
- R7F102G8C3CLA#HC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 25-WFLGA
- Datasheet:
-
R7F102G8C3CLA#HC0.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G22 32K
- Quantity:
- Payment:
- Shipping:
Inventory:3,451
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Product details
Overview
R7F102G8C3CLA#HC0 from Renesas is a 25-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 1.6–5.5 V, achieves 37.5 µA/MHz active current and 200 nA STOP-mode current, and supports UART, I²C, SPI, RTC, and 10-bit ADC - deployed in battery-powered human interface modules and industrial sensor nodes.
For engineers reviewing the R7F102G8C3CLA#HC0 datasheet, R7F102G8C3CLA#HC0 pinout, R7F102G8C3CLA#HC0 application, or R7F102G8C3CLA#HC0 equivalent, key selection considerations include its 25-pin 3×3 mm WFLGA package, 32 KB flash/2 KB data flash memory map, CTSU2La capacitive sensing unit with self- and mutual-capacitance modes, SNOOZE mode sequencer for ultra-low-power event-driven operation, and support for -40°C to +85°C ambient temperature.
Technical Context
The R7F102G8C3CLA#HC0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs at 32 MHz high-speed mode or 30.5 µs at 32.768 kHz ultra-low-speed mode). It integrates a 21-command SNOOZE mode sequencer (SMS) that executes low-power background tasks without CPU, flash, or RAM activation.
Peripherals include an 8-/10-bit ADC with internal 1.48 V reference and temperature sensor, real-time clock with alarm and correction, watchdog timer, 16-bit timer array (TAU) with 8 channels, and dual I²C interfaces (IICA0/IICA1) supporting standard/fast-mode plus simplified I²C. Communication flexibility is extended via UARTA (up to 4 channels), CSI (SPI-compatible), and SAU-based serial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and selectable high/ultra-low-speed instruction timing |
| Flash Memory | 32 KB code flash + 2 KB data flash with block erase protection and background operation (BGO) |
| RAM | 4 KB on-chip RAM supporting low-power retention during STOP mode |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interfacing with 1.8 V, 2.5 V, and 3.3 V peripherals |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; SNOOZE mode sequencer reduces average system power |
| Capacitive Sensing | CTSU2La unit supporting up to 29 keys via self-capacitance or matrix mutual-capacitance configuration |
| Temperature Range | -40°C to +85°C (industrial-grade qualification per ordering code 'C') |
Pinout & Package
Package: 25-pin WFLGA (3 × 3 mm, 0.50-mm pitch), moisture-sensitive level 3, embossed tape packaging (#HC0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 P60 | I²C Clock (IICA0) | Primary I²C bus clock line; supports standard/fast-mode; requires external pull-up |
| A2 REGC | Regulator Decoupling | Connects to VSS via 0.47–1 µF capacitor to stabilize internal voltage regulator output |
| A3 P121 | Crystal Input / XT1 | Primary crystal oscillator input (32.768 kHz or 1–20 MHz); also supports VBAT backup function |
| A4 P122 | Crystal Output / XT2 | Crystal oscillator output; used with external crystal or ceramic resonator for precise timing |
| A5 P40 | Debug Interface / TOOL0 | On-chip debugging communication channel; used for programming and real-time trace |
| B1 P61 | I²C Data (IICA0) | Primary I²C bus data line; bidirectional open-drain; shares pin with SDAA0 |
| B2 VSS | Ground Reference | Dedicated analog/digital ground pin; must be connected to PCB ground plane |
| B3 VDD | Power Supply | Main supply input (1.6–5.5 V); powers core, peripherals, and I/O; requires local decoupling |
| B4 P137 | Interrupt Input / INTP0 | Edge-triggered external interrupt source; supports wake-up from STOP/SNOOZE modes |
| B5 RESET | Reset Input | Active-low asynchronous reset; internally pulled up; accepts external reset signal or POR |
| C1 P31 | Timer / Buzzer / Interrupt | Configurable as TI03/TO03 timer I/O, PCLBUZ0 buzzer output, or INTP4 interrupt input |
| C2 P30 | RTC / Touch / Interrupt | Provides RTC 1 Hz output, TSCAP for capacitive sensing, and INTP3 interrupt capability |
| C3 P20 | Analog Input / AVREFP | Positive reference voltage input for ADC; also functions as ANI0 analog channel |
| C4 P00 | UART / Timer / Touch | Supports TxD1, TI00, TS26 - enabling serial comms, timer capture, and capacitive sensing |
| C5 P01 | UART / Timer / Touch | Supports RxD1, TO00, TS27 - enabling serial receive, timer output, and capacitive sensing |
| D1 P16 | Timer / Interrupt / UART | TI01/TO01 timer I/O, INTP5 interrupt, and optional RxD0 remapping via PIOR register |
| D2 P17 | Timer / UART / Touch | TI02/TO02 timer I/O, SO11 serial output, and TS18 capacitive sensing channel |
| D3 P12 | UART / Debug / Touch | TxD0, TOOLTxD debug output, and TS13 capacitive sensing channel |
| D4 P21 | Analog Input / AVREFM | Negative reference voltage input for ADC; also functions as ANI1 analog channel |
| D5 P22 | Analog Input / Touch | ANI2 analog input and TS20 capacitive sensing channel - shared analog/touch resource |
| E1 P130 | Touch Sensing | TS19 dedicated capacitive sensing channel - expands CTSU2La scan matrix capability |
| E2 P50 | UART / Timer / Touch | SI11 serial input, INTP1 interrupt, and TS00 capacitive sensing channel |
| E3 P11 | UART / Debug / Touch | RxD0, TOOLRxD debug input, SDA00 I²C data, and TS12 capacitive sensing channel |
| E4 P10 | UART / I²C / Touch | SCK00/SCL00 SPI/I²C clock, and TS11 capacitive sensing channel |
| E5 P147 | Analog Input / Touch | ANI18 analog input and TS10 capacitive sensing channel - supports multi-channel sensing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 200 nA STOP mode and SNOOZE sequencer enable years of operation on coin-cell batteries |
| Integrated Capacitive Touch | CTSU2La supports 29-key self-capacitance or matrix mutual-capacitance without external components |
| Flexible Clock System | High-speed (32 MHz ±1.0%), middle-speed (1–4 MHz adjustable), and low-speed (32.768 kHz) oscillators |
| Secure Flash Management | Flash shield window and block-level erase/write prohibition prevent unauthorized firmware modification |
| Background Data Flash Writes | Data flash BGO allows full CPU execution while rewriting 2 KB data flash - no runtime interruption |
| Event-Driven Low-Power Sequencing | SNOOZE mode sequencer executes up to 32 pre-programmed commands (e.g., ADC read, compare, GPIO toggle) autonomously |
Applications
| Smart Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Touch-enabled front panel for HVAC, washing machine, or oven with LED feedback and motor control. IC Role / Device Role: Primary MCU managing capacitive touch UI, real-time clock, PWM motor drivers, and UART communication to main controller. Use Value: Single-chip integration of 29-key CTSU2La, RTC, 10-bit ADC, and 32 KB flash eliminates external touch controller and reduces BOM cost by ≥30%. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role: Low-power sensor aggregator using STOP mode between readings, waking via RTC alarm or external interrupt to sample sensors and transmit via UART/I²C. Use Value: 200 nA STOP current and SNOOZE sequencer reduce average power to <1 µA - extending 2000 mAh battery life to >10 years. |
| Medical Wearable Interface | Energy-Efficient Smart Meter |
Use Scenario: Compact wearable device with touch controls, buzzer alerts, and biometric sensor interface. IC Role / Device Role: System-on-chip handling capacitive touch, PCLBUZ0 buzzer output, internal temperature sensor, and secure data logging to data flash. Use Value: On-chip 1.48 V reference and temperature sensor eliminate external components; data flash BGO enables seamless firmware updates during operation. |
Use Scenario: Sub-metering module in smart building infrastructure requiring tamper-resistant logging and long-term reliability. IC Role / Device Role: Secure data acquisition MCU with flash shield window, RTC timestamping, voltage detector (LVD), and UART/RS-485 interface. Use Value: Dual LVD0/LVD1 monitors supply integrity; flash security prevents unauthorized firmware access; -40°C to +85°C rating ensures field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G8E3CLA#HC0 | 64 KB code flash, 2 KB data flash, same 25-pin WFLGA package and peripheral set | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed | Select for larger application code size; identical pinout and software compatibility simplify migration |
| R7F102G6C3CSP#HA0 | 20-pin LSSOP package, 32 KB flash, 4 KB RAM, but only 16 capacitive touch channels and no SNOOZE sequencer | Suitable for simpler HMI designs where board space permits larger package and lower touch count suffices | Choose when footprint constraints allow LSSOP and reduced CTSU2La channel count (16 vs. 29) is acceptable |
Compared with R7F102G8E3CLA#HC0, the R7F102G8C3CLA#HC0 trades flash capacity for cost-sensitive deployment; compared with R7F102G6C3CSP#HA0, it delivers higher touch density and autonomous low-power sequencing in a smaller 3×3 mm WFLGA footprint - critical for space-constrained portable devices.
Availability
R7F102G8C3CLA#HC0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance control panels, medical wearables, and energy-efficient smart meters requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for R7F102G8C3CLA#HC0 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/G22 product line targets ultra-low-power embedded applications requiring integrated capacitive touch, secure firmware, and flexible communication - designed specifically for cost-sensitive, battery-operated human interface and sensor-edge devices.
FAQ
What is the maximum operating frequency and accuracy of the high-speed on-chip oscillator in the R7F102G8C3CLA#HC0?
The R7F102G8C3CLA#HC0 high-speed on-chip oscillator supports selectable frequencies up to 32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = -20°C to +85°C. This eliminates the need for external crystals in many timing-critical applications while maintaining robust performance over voltage and temperature ranges.
Does the R7F102G8C3CLA#HC0 support simultaneous use of multiple I²C interfaces?
Yes, the R7F102G8C3CLA#HC0 integrates two independent I²C interfaces: IICA0 (pins A1/A1) and IICA1 (pins C2/E3). Both support standard (100 kbps) and fast-mode (400 kbps) operation, enabling concurrent communication with separate slave devices such as EEPROMs, sensors, and display controllers without software arbitration.
How many capacitive touch channels does the R7F102G8C3CLA#HC0 support, and what configuration methods are available?
The R7F102G8C3CLA#HC0 supports up to 29 capacitive touch channels via its CTSU2La unit. It enables both self-capacitance (one pin per key) and mutual-capacitance (transmit/receive pin pairs) configurations - allowing flexible matrix keypad design without external ICs or additional passive components.
Can the R7F102G8C3CLA#HC0 execute code while writing to data flash memory?
Yes, the R7F102G8C3CLA#HC0 supports Background Operation (BGO) for data flash. While rewriting the 2 KB data flash memory, the CPU can continue executing instructions from code flash - ensuring uninterrupted real-time operation in applications requiring persistent parameter storage or firmware update staging.
What is the purpose and capability of the SNOOZE mode sequencer (SMS) in the R7F102G8C3CLA#HC0?
The SNOOZE mode sequencer (SMS) in the R7F102G8C3CLA#HC0 executes up to 32 preconfigured commands - including ADC conversions, value comparisons, GPIO toggles, and timer operations - without CPU, flash, or RAM activation. It reduces average system power by offloading periodic tasks from the main core, enabling true autonomous low-power sensing.
R7F102G8C3CLA#HC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 25-WFLGA
- Series:
- RL78/G22
- Packaging:
- Tape & Reel (TR)
- 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:
- 19
- 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 6x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G8C3CLA#HC0 FAQ
1.How can I place an order for R7F102G8C3CLA#HC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G8C3CLA#HC0 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 R7F102G8C3CLA#HC0 reliable?
The price and inventory of R7F102G8C3CLA#HC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G8C3CLA#HC0 is usually 5 days.
3.What payment methods are accepted for R7F102G8C3CLA#HC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G8C3CLA#HC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G8C3CLA#HC0?
R7F102G8C3CLA#HC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G8C3CLA#HC0 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 R7F102G8C3CLA#HC0?
For technical support, including R7F102G8C3CLA#HC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G8C3CLA#HC0 requirements.
6.How does Aetrix verify that R7F102G8C3CLA#HC0 is sourced from the original manufacturer or authorized distributors?
All R7F102G8C3CLA#HC0 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 R7F102G8C3CLA#HC0 meets industry standards.
7.What is the process for return or replacement of R7F102G8C3CLA#HC0?
All R7F102G8C3CLA#HC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G8C3CLA#HC0, 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 R7F102G8C3CLA#HC0 part is unused and in its original packaging.
Return procedure for R7F102G8C3CLA#HC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G8C3CLA#HC0 Tags
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