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Renesas R7F102G7C3CNP#BA0
- Part No.:
- R7F102G7C3CNP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7F102G7C3CNP#BA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 24HWQFN -
- Quantity:
- Payment:
- Shipping:
Inventory:2,184
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Product details
Overview
R7F102G7C3CNP#BA0 from Renesas is a 24-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 to 5.5 V. It delivers ultra-low power consumption (37.5 µA/MHz active, 200 nA STOP mode), integrates a 10-bit ADC (10 channels), up to 29 capacitive touch sensors, and supports UART, I²C, and SPI interfaces for embedded control in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F102G7C3CNP#BA0 datasheet, R7F102G7C3CNP#BA0 pinout, R7F102G7C3CNP#BA0 application, or R7F102G7C3CNP#BA0 equivalent, this page provides verified electrical specs, validated 24-pin HWQFN terminal mapping, real-world use cases in low-power sensing and touch interface design, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The R7F102G7C3CNP#BA0 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 includes a SNOOZE mode sequencer enabling CPU-free periodic operations using 21 command types across 32 processes.
Peripheral integration includes an Event Link Controller (ELC) routing 20 event signals between functions, a Data Transfer Controller (DTC) supporting normal/repeat/block transfer modes with chain transfer, and a capacitive touch unit (CTSU2La) supporting both self- and mutual-capacitance configurations on up to 29 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and selectable instruction timing |
| Flash Memory | 32 KB code flash + 2 KB data flash with background operation and 1M rewrite cycles |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode current enables multi-year battery life |
| Analog Peripherals | 10-bit ADC with 10 input channels, internal 1.48 V reference, and integrated temperature sensor |
| Capacitive Touch | CTSU2La unit supporting up to 29 keys via self-capacitance or matrix mutual-capacitance |
| Operating Voltage | 1.6 V to 5.5 V supply range ensures compatibility with Li-ion, coin-cell, and 3.3/5 V systems |
| Temperature Range | -40°C to +85°C ambient operation certified for consumer and industrial environments |
Pinout & Package
Package: 24-pin HWQFN (4 × 4 mm, 0.50-mm pitch), exposed die pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P137 | Interrupt Input | INTP0 external interrupt source for wake-up or event capture |
| P122 / P121 | Crystal Oscillator Inputs | Supports external 32.768 kHz watch crystal (XT1/XT2) or high-frequency crystal up to 20 MHz |
| REGC | Regulator Decoupling | Must be connected to VSS via 0.47–1 µF capacitor for internal LDO stability |
| VDD / VSS | Power Supply | Single 1.6–5.5 V supply rail; VSS serves as analog/digital ground reference |
| P20–P22, P00–P01, P147 | Analog Input / CTSU | 10-channel ADC inputs with shared capacitive touch sensing (TSxx) capability |
| P10–P12, P16–P17, P30–P31, P50–P51, P60–P61 | Multi-function I/O | Configurable as UART/I²C/SPI pins, timer I/O (TI0x/TO0x), RTC1HZ, or buzzer output (PCLBUZ0) |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer | Executes up to 32 low-power processing steps without CPU, flash, or RAM activation - ideal for periodic sensor polling |
| Capacitive Touch Unit (CTSU2La) | Enables robust touch key detection with automatic noise cancellation and adjustable sensitivity per channel |
| Data Flash Background Operation | Permits concurrent program execution and non-volatile parameter storage updates - no system stall during writes |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining eliminates CPU overhead for time-critical signal routing (e.g., ADC → DTC → RAM) |
| Ultra-Low-Power STOP Mode | 200 nA retention current with fast wake-up (<;10 µs) preserves state while extending battery life in intermittent-use devices |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat with capacitive touch buttons and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: Main controller executing touch scan, ADC acquisition, display update, and wireless module handshaking via UART. Use Value: 200 nA STOP mode extends CR2032 battery life beyond 5 years; CTSU2La supports 12-key overlay with moisture immunity. |
Use Scenario: DIN-rail mounted environmental monitor logging temperature, vibration, and air quality in factory settings. IC Role / Device Role / Timing Role: System-on-chip managing multi-sensor acquisition, real-time clock timestamping, and RS-485 communication. Use Value: 10-bit ADC with internal reference ensures ±1.5% measurement accuracy across -40°C to +85°C; ELC enables jitter-free sensor trigger synchronization. |
| Portable Medical Device | Home Appliance Control Panel |
|
Use Scenario: Handheld pulse oximeter requiring low-power operation, analog front-end conditioning, and OLED display interface. IC Role / Device Role / Timing Role: Signal processor handling photodiode ADC sampling, SpO₂ calculation, and touch-based UI navigation. Use Value: SNOOZE mode sequencer autonomously triggers ADC conversions every 100 ms while CPU remains halted - reducing average current to <;5 µA. |
Use Scenario: Microwave oven control board with touch-sensitive keypad, buzzer feedback, and safety interlock monitoring. IC Role / Device Role / Timing Role: Primary MCU coordinating touch input, relay control, buzzer timing (PCLBUZ0), and fault detection via GPIO interrupts. Use Value: Integrated PCLBUZ0 driver eliminates external oscillator circuitry; 24-pin HWQFN footprint minimizes PCB area vs. legacy 32-pin alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G7E3CNP#BA0 | Same 24-pin HWQFN package and peripherals, but with 64 KB code flash and identical 4 KB RAM | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed | Select if bootloader, OTA stack, or dual-bank firmware updates demand >32 KB flash capacity |
| R7F102G6C3CSP#CA0 | 20-pin LSSOP package (4.4 × 6.5 mm), 32 KB flash, same core/peripherals but fewer I/O (16 pins vs. 24) and no P60/P61 I²C pins | Suitable for space-constrained designs where <;16 GPIOs and no secondary I²C bus are acceptable | Choose for cost-sensitive, lower-I/O applications where LSSOP assembly is preferred over QFN reflow |
Compared with R7F102G7C3CNP#BA0, the R7F102G7E3CNP#BA0 offers double flash capacity without layout change, while the R7F102G6C3CSP#CA0 reduces pin count and package size at the expense of I/O and interface flexibility - making each optimal for distinct BOM and board-area trade-offs.
Availability
R7F102G7C3CNP#BA0 is available at Aetrix Electronics and suitable for industrial HMI, battery-powered sensor nodes, and appliance control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R7F102G7C3CNP#BA0 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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line targets ultra-low-power embedded control applications, emphasizing energy efficiency, integrated human-machine interface (HMI) features, and simplified development for cost-sensitive industrial and consumer devices.
FAQ
What is the maximum operating frequency of the R7F102G7C3CNP#BA0?
The R7F102G7C3CNP#BA0 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. The device also supports ultra-low-speed operation at 32.768 kHz for real-time clock and low-power monitoring tasks.
Does the R7F102G7C3CNP#BA0 include hardware debugging support?
Yes, the R7F102G7C3CNP#BA0 includes on-chip debugging capability with dedicated TOOLRxD, TOOLTxD, and TOOL0 pins. These support full SWD-style debug access including breakpoints, memory inspection, and real-time variable monitoring without requiring external debug probes beyond standard Renesas E2 or E2 Lite debuggers.
How many capacitive touch channels does the R7F102G7C3CNP#BA0 support?
The R7F102G7C3CNP#BA0 integrates the CTSU2La capacitive touch unit supporting up to 29 touch keys. It operates in either self-capacitance mode (one pin per key) or mutual-capacitance matrix mode (transmit/receive pin pairs), with built-in noise suppression and auto-calibration features enabled via firmware configuration.
What is the purpose of the REGC pin on the R7F102G7C3CNP#BA0?
The REGC pin on the R7F102G7C3CNP#BA0 is the decoupling terminal for the internal voltage regulator. It must be connected to VSS through a 0.47 µF to 1 µF ceramic capacitor to ensure stable LDO operation and prevent reset instability or erratic behavior during low-power mode transitions.
Can the R7F102G7C3CNP#BA0 operate from a 1.8 V supply?
Yes, the R7F102G7C3CNP#BA0 is fully specified to operate across 1.6 V to 5.5 V. At 1.8 V, all core functions-including 32 MHz operation, ADC conversion, and capacitive touch sensing-remain functional, enabling direct compatibility with single-cell Li-ion or NiMH battery systems without external regulation.
R7F102G7C3CNP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G22
- 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:
- 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:
R7F102G7C3CNP#BA0 FAQ
1.How can I place an order for R7F102G7C3CNP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G7C3CNP#BA0 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 R7F102G7C3CNP#BA0 reliable?
The price and inventory of R7F102G7C3CNP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G7C3CNP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F102G7C3CNP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G7C3CNP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G7C3CNP#BA0?
R7F102G7C3CNP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G7C3CNP#BA0 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 R7F102G7C3CNP#BA0?
For technical support, including R7F102G7C3CNP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G7C3CNP#BA0 requirements.
6.How does Aetrix verify that R7F102G7C3CNP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G7C3CNP#BA0 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 R7F102G7C3CNP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F102G7C3CNP#BA0?
All R7F102G7C3CNP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G7C3CNP#BA0, 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 R7F102G7C3CNP#BA0 part is unused and in its original packaging.
Return procedure for R7F102G7C3CNP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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