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Renesas R7F102GBC3CNP#BA0
- Part No.:
- R7F102GBC3CNP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R7F102GBC3CNP#BA0.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G22 32K
- Quantity:
- Payment:
- Shipping:
Inventory:4,304
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Product details
Overview
R7F102GBC3CNP#BA0 from Renesas is a 32-pin HWQFN-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, delivers 37.5 µA/MHz active current and 200 nA stop current, and targets ultra-low-power industrial HMI applications such as smart thermostats and sensor nodes.
For engineers reviewing the R7F102GBC3CNP#BA0 datasheet, R7F102GBC3CNP#BA0 pinout, R7F102GBC3CNP#BA0 application, or R7F102GBC3CNP#BA0 equivalent, key selection criteria include its 32-pin HWQFN (5 × 5 mm, 0.50-mm pitch) package, -40 to +85°C temperature grade, CTSU2La-based touch support, RTC with alarm, and dual UART/I²C/SPI interface capability.
Technical Context
The R7F102GBC3CNP#BA0 implements the RL78 CPU core with a 3-stage CISC 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 SNOOZE mode sequencer (SMS) enabling low-power background processing of up to 32 sequential commands without CPU wake-up.
Peripheral integration includes an 8-/10-bit ADC with 10 analog inputs and internal 1.48 V reference, a 16-bit timer array unit (TAU) with 8 channels, real-time clock (RTC) with 99-year calendar and alarm, and event link controller (ELC) supporting 20 configurable peripheral event connections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Memory | 32 KB code flash (2 KB block size), 2 KB data flash (1M rewrite cycles), 4 KB on-chip RAM |
| Power | 1.6–5.5 V supply; 37.5 µA/MHz active current; 200 nA STOP mode current |
| Timers & RTC | Eight 16-bit TAU channels; one 32-bit interval timer; RTC with calendar, alarm, and 1 Hz output |
| Analog & Touch | 8-/10-bit ADC with 10-channel input, internal 1.48 V reference, and CTSU2La supporting 29-key self/mutual capacitance sensing |
| Interfaces | Up to 4 UARTA (LIN-capable), 6 I²C/Simplified I²C, 5 CSI (SPI-compatible), and ELC-driven peripheral linking |
| Operating Temp | -40 to +85°C ambient range, qualified for industrial applications (suffix '2') |
Pinout & Package
Package: HWQFN-32 (5 × 5 mm, 0.50-mm pitch), exposed die pad (recommended to connect to VSS), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | Debug/Tool Interface | TOOL0 signal for on-chip debugging and programming |
| RESET | System Reset Input | Active-low asynchronous reset with internal pull-up; accepts 1.6–5.5 V logic |
| P137 | External Interrupt | INTP0 interrupt input with programmable edge sensitivity |
| P122 / P121 | Crystal Oscillator | XT1/XT2 pins for external 32.768 kHz crystal or high-frequency resonator (up to 20 MHz) |
| VDD / VSS | Power Supply | Single 1.6–5.5 V supply rail; REGC capacitor (0.47–1 µF to VSS) required for internal regulator stability |
| P30 | Capacitive Sensing | TSCAP - dedicated pin for touch sensing reference capacitor connection |
| P10–P12, P14–P17 | Serial Interfaces | Multiplexed CSI0/SCL0/SO00/TxD0/RxD0/SDA00/TSxx for SPI/I²C/UART and touch sensing |
| P20–P23, P00–P01, P147 | Analog Input | ANI0–ANI3, ANI16–ANI19, ANI18 - 10-channel ADC inputs with AVREFP/AVREFM reference support |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 preconfigured commands (e.g., ADC sampling, comparison, GPIO toggle) autonomously-no CPU, flash, or RAM required |
| Capacitive Touch Unit (CTSU2La) | Supports both self-capacitance (29 single-key channels) and mutual-capacitance matrix configurations without external components |
| Data Flash Background Operation | Enables code execution from program memory while rewriting 2 KB data flash-critical for firmware updates and parameter storage |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC end-of-conversion → DMA transfer → UART transmit) eliminates CPU polling overhead |
| Low-Power Oscillators | Independent high-speed (±1.0% @ 32 MHz), middle-speed, and 32.768 kHz low-speed oscillators enable dynamic clock gating and precise RTC timing |
Applications
| Smart Thermostat Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Local temperature/humidity display with capacitive touch buttons and wireless telemetry reporting. IC Role / Device Role / Timing Role: Main system controller managing touch UI, ADC sampling, RTC-scheduled data logging, and UART-to-LoRaWAN bridge. Use Value: 200 nA STOP mode extends battery life >5 years on coin cell; CTSU2La enables bezel-free glass front panel with 29-key layout. |
Use Scenario: DIN-rail mounted environmental monitor collecting vibration, temperature, and humidity in factory settings. IC Role / Device Role / Timing Role: Real-time data acquisition hub with RTC timestamping, ELC-optimized ADC-to-DMA transfers, and dual UART for Modbus RTU and debug console. Use Value: -40 to +85°C rating ensures reliability in uncontrolled enclosures; 32 KB flash accommodates field-upgradable sensor calibration tables. |
| Appliance Control Panel | Medical Patient Monitor Interface |
|
Use Scenario: Wash cycle selector and status display on front-loading washing machine with water-resistant touch overlay. IC Role / Device Role / Timing Role: Dedicated HMI processor handling touch detection, buzzer feedback (PCLBUZ0/PCLBUZ1), LED driver control, and I²C-connected display driver. Use Value: Integrated 10-bit ADC measures analog potentiometer inputs; SMS offloads periodic LED blink patterns to reduce CPU load during wash cycles. |
Use Scenario: Bedside vital sign display with touch navigation and audible alerts for SpO₂ and pulse rate thresholds. IC Role / Device Role / Timing Role: Safety-critical UI controller with independent RTC alarm generation, hardware watchdog (LVD0/LVD1 monitored), and isolated UART communication to main processor. Use Value: Dual voltage detectors provide fail-safe brown-out protection; 4 KB RAM supports double-buffered display frame storage for glitch-free UI updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GBE3CNP#BA0 | Same package and pinout; 64 KB code flash, 2 KB data flash, identical peripherals and power specs | Required where firmware complexity exceeds 32 KB or long-term data logging needs >2 KB nonvolatile storage | Select when future firmware expansion headroom or larger configuration tables are needed; no PCB change required |
| R7F102GBC3CFP#BA0 | LQFP-32 (7 × 7 mm, 0.80-mm pitch); same 32 KB flash, 4 KB RAM, and full peripheral set but different thermal/mechanical profile | Favored in designs requiring easier rework, higher thermal mass, or legacy LQFP footprint compatibility | Choose for prototyping, manual assembly, or thermal-intensive environments where HWQFN thermal resistance is limiting |
Compared with R7F102GBC3CNP#BA0, the R7F102GBE3CNP#BA0 offers doubled code density for complex control algorithms without altering layout, while the R7F102GBC3CFP#BA0 trades compactness for solderability and thermal dissipation-both retain identical register-level software compatibility.
Availability
R7F102GBC3CNP#BA0 is available at Aetrix Electronics and suitable for industrial HMI, battery-powered sensor nodes, and appliance control panels requiring stable component supply across multi-year production cycles.
Supply support for R7F102GBC3CNP#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, 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 human-machine interfaces and sensor-edge applications demanding robust touch, precise timing, and long operational life.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GBC3CNP#BA0?
The R7F102GBC3CNP#BA0 supports up to 32 MHz operation using the high-speed on-chip oscillator, with guaranteed functionality across its full 1.6–5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs. Voltage detector (LVD0/LVD1) thresholds ensure safe operation during brown-out conditions.
Does the R7F102GBC3CNP#BA0 support hardware debugging, and what interface is used?
Yes, the R7F102GBC3CNP#BA0 supports on-chip debugging via the TOOL0 (P40), TOOLRxD (P11), and TOOLTxD (P12) pins, implementing Renesas' standard E1/E2 emulator interface. No external debug probe is required beyond a compatible Renesas E2 Lite or E2 emulator, and SWD/JTAG is not supported.
How many capacitive touch channels can be implemented using the CTSU2La peripheral in the R7F102GBC3CNP#BA0?
The R7F102GBC3CNP#BA0's CTSU2La supports up to 29 capacitive touch keys using self-capacitance mode (one pin per key), or a matrix configuration using mutual capacitance with up to 29 transmitter and 29 receiver pins. All touch channels operate within the 1.8–5.5 V VDD range and require no external RC components.
What are the RTC capabilities of the R7F102GBC3CNP#BA0, and does it retain time during STOP mode?
The R7F102GBC3CNP#BA0 includes a full-featured RTC counting seconds to 99 years, with alarm interrupt, periodic interrupt, and clock correction. It operates from the 32.768 kHz subsystem clock and continues running in STOP mode, consuming only 200 nA total system current-enabling decade-scale battery-backed timekeeping.
Is the R7F102GBC3CNP#BA0 pin-compatible with other RL78/G22 variants in the same package type?
Yes, all RL78/G22 devices in the 32-pin HWQFN package-including R7F102GBC3CNP#BA0, R7F102GBE3CNP#BA0, and R7F102GBC3CFP#BA0-share identical pinouts and electrical characteristics. Firmware is binary-compatible across flash-size variants; only flash programming and linker script adjustments are required for migration.
R7F102GBC3CNP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-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:
- 27
- 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:
R7F102GBC3CNP#BA0 FAQ
1.How can I place an order for R7F102GBC3CNP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GBC3CNP#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 R7F102GBC3CNP#BA0 reliable?
The price and inventory of R7F102GBC3CNP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GBC3CNP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F102GBC3CNP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GBC3CNP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GBC3CNP#BA0?
R7F102GBC3CNP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GBC3CNP#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 R7F102GBC3CNP#BA0?
For technical support, including R7F102GBC3CNP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GBC3CNP#BA0 requirements.
6.How does Aetrix verify that R7F102GBC3CNP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GBC3CNP#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 R7F102GBC3CNP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F102GBC3CNP#BA0?
All R7F102GBC3CNP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GBC3CNP#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 R7F102GBC3CNP#BA0 part is unused and in its original packaging.
Return procedure for R7F102GBC3CNP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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