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Renesas R7F102GBC2DFP#UA0
- Part No.:
- R7F102GBC2DFP#UA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7F102GBC2DFP#UA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K LQFP32 -4
- Quantity:
- Payment:
- Shipping:
Inventory:2,758
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Product details
Overview
R7F102GBC2DFP#UA0 from Renesas is a 32-pin LQFP-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and 2 KB data flash, operating from 1.6 V to 5.5 V. It delivers ultra-low power consumption (37.5 µA/MHz active, 200 nA STOP mode), integrates capacitive touch sensing for up to 29 keys, and supports UART, I²C, SPI, RTC, and 16-bit timers - deployed in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F102GBC2DFP#UA0 datasheet, R7F102GBC2DFP#UA0 pinout, R7F102GBC2DFP#UA0 application, or R7F102GBC2DFP#UA0 equivalent, key selection criteria include its 32-pin LQFP-0.8 mm pitch package, -40°C to +85°C temperature grade, 32 KB flash/4 KB RAM memory configuration, integrated CTSU2La capacitive sensing unit, and support for SNOOZE mode sequencer for autonomous low-power wake-up sequencing.
Technical Context
The R7F102GBC2DFP#UA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). It includes multiply/divide/accumulate instructions and a 1 MB address space.
Its peripheral set centers on ultra-low-power operation: SNOOZE mode sequencer executes up to 32 processes autonomously without CPU/RAM/flash activation; Event Link Controller (ELC) enables direct peripheral-to-peripheral event triggering; and Data Transfer Controller (DTC) supports chain transfer across multiple sources without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM / Data Flash | 32 KB code flash (2 KB block size), 4 KB SRAM, 2 KB data flash with 1M-cycle endurance |
| Supply Voltage | 1.6 V to 5.5 V - supports direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; HALT and SNOOZE modes enabled |
| Capacitive Sensing | CTSU2La unit supporting up to 29 self-capacitance keys or mutual-capacitance matrix configurations |
| Timers & RTC | Eight 16-bit timer channels; 32-bit interval timer; hardware RTC with alarm and clock correction |
| Communication Interfaces | Up to 4 UARTA (LIN-capable), 6 I²C/Simplified I²C, and 5 CSI (SPI-compatible) channels |
Pinout & Package
Package: 32-pin LQFP (7 × 7 mm, 0.80-mm pitch), RoHS-compliant, industrial-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P12, P14–P17, P20–P23, P30–P31, P40, P50–P51, P60–P62, P70–P73, P120–P122, P137, P147 | Multi-function I/O port pins | Support digital I/O, analog input (ANI0–ANI19), capacitive touch (TS00–TS28), timer I/O (TI/TO), UART/I²C/SPI, and interrupt inputs (INTP0–INTP5) |
| VDD / VSS | Power supply rails | Single 1.6–5.5 V supply; VSS serves as analog/digital ground reference and CTSU return path |
| RESET | Active-low reset input | Asynchronous reset with internal POR and dual voltage detectors (LVD0/LVD1) for brown-out protection |
| X1 / X2 / EXCLK / XT1 / XT2 | System clock inputs | Support external crystal (32.768 kHz or 1–20 MHz), ceramic resonator, or external clock source |
| REGC | Internal regulator bypass capacitor terminal | Must be connected to VSS via 0.47–1 µF capacitor to stabilize on-chip DC-DC regulator output |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed operations (e.g., ADC sampling, CTSU scan, register compare) autonomously - eliminates CPU wake-up overhead in periodic sensing tasks |
| Capacitive Touch Unit (CTSU2La) | Hardware-accelerated self- and mutual-capacitance sensing with noise immunity tuning; no firmware polling required for baseline tracking |
| Event Link Controller (ELC) | Enables 20 configurable event links (e.g., ADC end → DTC start → DMA transfer) without CPU involvement - reduces latency and power in sensor-to-memory workflows |
| Data Flash Background Operation | Allows full CPU execution from code flash while rewriting 2 KB data flash - enables robust over-the-air parameter updates without system freeze |
| On-chip Oscillators | High-accuracy (±1.0%) 32 MHz on-chip oscillator + selectable middle/low-speed clocks - eliminates need for external crystals in cost-sensitive designs |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
|
Use Scenario: Touch-enabled control panel for HVAC, PLC interface, or motor drive operator station operating on 24 V DC with local battery backup. IC Role / Device Role / Timing Role: Main controller executing UI logic, managing capacitive touch overlay, driving LED indicators, and communicating via UART/I²C to host MCU or display driver. Use Value: Ultra-low STOP current (200 nA) extends battery life during standby; CTSU2La provides reliable touch detection under EMI-rich factory environments without external ICs. |
Use Scenario: Wireless environmental sensor node (temperature/humidity/pressure) powered by coin cell or energy harvester, transmitting data via UART-to-LoRa module. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition (ADC/CTSU), real-time timestamping (RTC), low-power scheduling (SNOOZE sequencer), and serial data framing. Use Value: SNOOZE mode performs periodic sensor reads and RTC-triggered wake-ups without CPU activation - cuts average system current to sub-µA levels. |
| Home Appliance Controls | Medical Wearables |
|
Use Scenario: Touch-based user interface for microwave oven, washing machine, or coffee maker with safety-critical status feedback and buzzer alerts. IC Role / Device Role / Timing Role: Dedicated UI controller handling touch decoding, buzzer tone generation (PCLBUZ0/PCLBUZ1), LED dimming, and fault reporting via UART to main appliance MCU. Use Value: Integrated PCLBUZ peripherals generate precise audio tones without external drivers; hardware RTC enables timed cooking cycles and child-lock timeout enforcement. |
Use Scenario: Disposable glucose monitor or pulse oximeter using single-cell lithium battery, requiring FDA-grade reliability and minimal BOM count. IC Role / Device Role / Timing Role: Primary measurement controller acquiring analog biosignals (via 10-bit ADC with internal 1.48 V reference), performing basic signal conditioning, and managing secure data logging to data flash. Use Value: On-chip temperature sensor and internal voltage reference eliminate calibration components; 1M-cycle data flash endurance supports lifetime usage logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GBE2DFP#UA0 | Same package and pinout; 64 KB code flash, 2 KB data flash, 4 KB RAM - identical peripherals and power specs | Required where firmware complexity exceeds 32 KB or field-upgradeable feature sets demand larger code space | Select when future firmware expansion or dual-bank boot swapping is needed; no PCB change required |
| R7F102GBC3CFP#UA0 | Same 32 KB/4 KB/2 KB memory config but rated for -40°C to +105°C industrial ambient; LQFP-0.8 mm pitch, same footprint | Required for extended-temperature deployments such as automotive cabin modules or outdoor industrial enclosures | Choose for thermal ruggedness; drop-in replacement with validated operation at 105°C junction temperature |
Compared with R7F102GBC2DFP#UA0, R7F102GBE2DFP#UA0 offers double code flash capacity for complex firmware, while R7F102GBC3CFP#UA0 trades consumer-grade temperature range for industrial-grade thermal resilience - both retain identical peripheral sets, power profiles, and pin compatibility.
Availability
R7F102GBC2DFP#UA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and home appliance controls requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R7F102GBC2DFP#UA0 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 industrial, automotive, and IoT markets.
The RL78/G22 product line targets ultra-low-power embedded applications demanding rich analog integration, capacitive touch, and deterministic real-time response - optimized for cost-sensitive, battery-operated, and thermally constrained systems.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GBC2DFP#UA0?
The R7F102GBC2DFP#UA0 operates up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over VDD = 1.8–5.5 V, TA = –20 to +85°C). Full 32 MHz operation requires VDD ≥ 2.7 V; at 1.6–2.6 V, max frequency is 24 MHz. External crystal support extends timing precision for RTC or communication synchronization.
Does the R7F102GBC2DFP#UA0 support hardware-based capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102GBC2DFP#UA0 integrates the CTSU2La capacitive touch sensing unit capable of up to 29 self-capacitance keys (one pin per key) or mutual-capacitance matrix configurations using dedicated TX/RX pin pairs. It includes built-in noise cancellation, auto-calibration, and baseline tracking - no external components or firmware polling required.
What debug interface does the R7F102GBC2DFP#UA0 provide, and which pins are used?
The R7F102GBC2DFP#UA0 supports on-chip debugging via the single-wire SWD interface using pins P11 (TOOLRxD), P12 (TOOLTxD), and P40 (TOOL0). These pins are multiplexed and require no external debug probe components - standard Renesas E2 or E2 Lite debuggers connect directly for full flash programming and real-time trace.
Can the R7F102GBC2DFP#UA0 execute code while rewriting data flash memory?
Yes, the R7F102GBC2DFP#UA0 supports Background Operation (BGO) for its 2 KB data flash. The CPU can execute instructions from code flash while simultaneously erasing or programming data flash sectors - enabling seamless parameter updates, logging, or OTA configuration changes without system interruption.
What is the purpose of the REGC pin on the R7F102GBC2DFP#UA0, and how must it be connected?
The REGC pin on the R7F102GBC2DFP#UA0 is the bypass capacitor terminal for the internal DC-DC regulator. It must be connected to VSS using a 0.47 µF to 1.0 µF ceramic capacitor placed as close as possible to the pin. Failure to do so causes unstable internal voltage regulation and may result in erratic reset behavior or CTSU malfunction.
R7F102GBC2DFP#UA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GBC2DFP#UA0 FAQ
1.How can I place an order for R7F102GBC2DFP#UA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GBC2DFP#UA0 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 R7F102GBC2DFP#UA0 reliable?
The price and inventory of R7F102GBC2DFP#UA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GBC2DFP#UA0 is usually 5 days.
3.What payment methods are accepted for R7F102GBC2DFP#UA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GBC2DFP#UA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GBC2DFP#UA0?
R7F102GBC2DFP#UA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GBC2DFP#UA0 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 R7F102GBC2DFP#UA0?
For technical support, including R7F102GBC2DFP#UA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GBC2DFP#UA0 requirements.
6.How does Aetrix verify that R7F102GBC2DFP#UA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GBC2DFP#UA0 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 R7F102GBC2DFP#UA0 meets industry standards.
7.What is the process for return or replacement of R7F102GBC2DFP#UA0?
All R7F102GBC2DFP#UA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GBC2DFP#UA0, 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 R7F102GBC2DFP#UA0 part is unused and in its original packaging.
Return procedure for R7F102GBC2DFP#UA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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