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Renesas R7F102GBC2DNP#UA0
- Part No.:
- R7F102GBC2DNP#UA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R7F102GBC2DNP#UA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,839
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Product details
Overview
R7F102GBC2DNP#UA0 from Renesas is a 32-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 capacitive touch sensing for up to 29 keys, and supports UART, I²C, SPI, RTC, and 16-bit timers - deployed in battery-powered consumer HMI systems.
For engineers reviewing the R7F102GBC2DNP#UA0 datasheet, R7F102GBC2DNP#UA0 pinout, R7F102GBC2DNP#UA0 application, or R7F102GBC2DNP#UA0 equivalent, key selection criteria include its 32-pin HWQFN (5 × 5 mm, 0.50-mm pitch) package, consumer-grade temperature range (−40 to +85°C), 32 KB flash capacity, CTSU2La capacitive touch unit, and SNOOZE mode sequencer for autonomous low-power sensor polling.
Technical Context
The R7F102GBC2DNP#UA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). It features a dedicated SNOOZE mode sequencer (SMS) that executes up to 32 sequential commands-including value comparison and arithmetic-without CPU, RAM, or flash activation.
Peripherals include an 8-/10-bit ADC with 10 analog inputs and internal 1.48 V reference, dual I²C interfaces (IICA/IICA), up to 4 UARTA channels (LIN-capable), and a 16-bit timer array unit (TAU) with 8 channels. Power management includes POR, dual LVDs, HALT/STOP/SNOOZE modes, and REGC-based voltage regulation requiring external 0.47–1 µF capacitor to VSS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at ultra-low power |
| Flash Memory | 32 KB code flash + 2 KB data flash; supports background operation (BGO) and self-programming with boot swapping |
| Operating Voltage | 1.6 V to 5.5 V; allows direct interface 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 current; enables multi-year battery life in coin-cell applications |
| Capacitive Touch | CTSU2La unit supporting 29 keys via self- or mutual-capacitance; eliminates need for external touch controller IC |
| Temperature Range | −40°C to +85°C; qualified for consumer electronics environments including portable appliances and smart home devices |
| Clock Sources | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz); low-speed 32.768 kHz oscillator with adjustability |
Pinout & Package
Package: HWQFN-32 (5 × 5 mm, 0.50-mm pitch), exposed die pad (recommended to connect to VSS), consumer-grade (2D) marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | Debug/Tool Interface | TOOL0 signal for on-chip debugging; enables programming and real-time trace without external JTAG adapter |
| RESET | System Reset Input | Active-low asynchronous reset; internally pulled up; requires external debounce or RC network for robust noise immunity |
| P137 | External Interrupt | INTP0 input for wake-up from STOP/SNOOZE; supports edge-triggered detection for low-latency event response |
| P30 | Capacitive Sensing | TSCAP terminal for CTSU2La reference capacitor connection; critical for stable touch baseline calibration |
| P10–P12 | Serial Interface | SCK00/SI00/SO00 pins for SPI master/slave; multiplexed with I²C (SCL00/SDA00) and touch (TS11–TS13) |
| P60/P61 | I²C Interface | SCLA0/SDAA0 pins for secondary I²C bus; enables isolated sensor or display communication without bus contention |
| VDD/VSS | Power Supply | Single 1.6–5.5 V supply; VSS must connect to exposed die pad for thermal and EMI performance |
| REGC | Regulator Decoupling | Connect 0.47–1 µF capacitor to VSS; stabilizes internal voltage regulator for consistent low-power operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step command sequences (e.g., ADC sampling → compare → conditional branch) autonomously, reducing CPU wake-ups by >90% in periodic sensor polling |
| Capacitive Touch Unit (CTSU2La) | Supports both self-capacitance (29 single-key channels) and mutual-capacitance (matrix configurations); integrated noise rejection eliminates external shielding |
| Data Flash with BGO | 2 KB data flash supports background rewriting while executing code from main flash; enables seamless firmware parameter updates without system interruption |
| Peripheral I/O Redirection (PIOR) | Allows dynamic remapping of UART, I²C, and timer outputs to alternate pins; simplifies PCB layout and avoids routing conflicts |
| Ultra-Low-Power STOP Mode | 200 nA retention current with RTC and key interrupt wake-up sources active; extends shelf life and standby time in energy-harvesting designs |
Applications
| Smart Thermostat Interface | Wireless Remote Control |
|---|---|
Use Scenario: A wall-mounted HVAC controller with capacitive touch buttons, ambient temperature sensing, and RF transmission. IC Role / Device Role / Timing Role: R7F102GBC2DNP#UA0 serves as the primary HMI controller, managing touch input, ADC-based thermistor reading, RTC-scheduled events, and UART-driven sub-GHz transceiver. Use Value: Integrated CTSU2La eliminates external touch IC; 32 KB flash accommodates UI logic + RF stack; 200 nA STOP mode enables >5-year CR2032 battery life. | Use Scenario: A compact IR/RF universal remote with gesture support and multi-protocol encoding. IC Role / Device Role / Timing Role: R7F102GBC2DNP#UA0 acts as the central processor, handling capacitive slider input, button matrix scanning, IR carrier generation (via PCLBUZ), and protocol encoding (NEC, RC5, etc.). Use Value: On-chip 32.768 kHz oscillator ensures precise IR timing; 10-channel ADC reads slider position; SNOOZE mode reduces average current to <1 µA during idle. |
| Portable Medical Monitor | Home Appliance Control Panel |
Use Scenario: A handheld pulse oximeter with OLED display, LED drivers, and SpO₂ sensor interface. IC Role / Device Role / Timing Role: R7F102GBC2DNP#UA0 controls red/IR LED timing via TAU PWM, samples photodiode ADC, manages OLED SPI interface, and logs data to data flash. Use Value: 8-/10-bit ADC with internal 1.48 V reference enables ratiometric SpO₂ calculation; BGO allows continuous logging during measurement without freezing UI. | Use Scenario: A dishwasher or washing machine control panel with waterproof touch overlay and motor driver interface. IC Role / Device Role / Timing Role: R7F102GBC2DNP#UA0 handles capacitive keypad, relay/SSR control via GPIO, fault monitoring (LVD), and serial communication with main MCU. Use Value: N-ch open-drain I/O pins tolerate 6 V, enabling direct drive of 5 V logic-level relays; HALT mode synchronizes with motor cycle pauses to minimize system power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GBE2DNP#UA0 | 64 KB code flash, same 32-pin HWQFN package, identical peripheral set and power specs | Required where firmware complexity exceeds 32 KB or future-proofing for feature expansion is needed | Select when additional flash headroom is required without changing PCB layout or firmware architecture |
| R7F102GBC2DFP#UA0 | LQFP-32 (7 × 7 mm, 0.80-mm pitch) package; same memory, peripherals, and electrical specs | Preferred for through-hole prototyping, manual soldering, or legacy board designs with LQFP footprints | Choose for compatibility with existing LQFP-based tooling or when thermal dissipation requirements favor larger package footprint |
Compared with R7F102GBE2DNP#UA0 and R7F102GBC2DFP#UA0, the R7F102GBC2DNP#UA0 offers optimal balance of compact size, cost efficiency, and sufficient flash for mid-complexity touch HMI applications - making it ideal for space-constrained consumer products where HWQFN assembly is established.
Availability
R7F102GBC2DNP#UA0 is available at Aetrix Electronics and suitable for smart home controllers, portable medical devices, wireless remotes, and appliance control panels requiring stable component supply across production lifecycles.
Supply support for R7F102GBC2DNP#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 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 consumer and industrial HMI applications, emphasizing capacitive touch integration, extended battery life, and simplified system design through hardware-accelerated peripherals like SMS and CTSU2La.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GBC2DNP#UA0?
The R7F102GBC2DNP#UA0 supports up to 32 MHz operation using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6 V to 5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs; voltage tolerance and timing margins are validated per Renesas R01DS0424EJ0120 Rev.1.20 specifications.
Does the R7F102GBC2DNP#UA0 include hardware support for capacitive touch sensing, and how many keys can it manage?
Yes, the R7F102GBC2DNP#UA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 keys using self-capacitance mode (one pin per key) or matrix configurations via mutual-capacitance. It operates across the full 1.8–5.5 V VDD range and includes built-in noise cancellation algorithms - no external touch controller is required for R7F102GBC2DNP#UA0-based designs.
What debug interface does the R7F102GBC2DNP#UA0 provide, and which pins are used?
The R7F102GBC2DNP#UA0 uses the on-chip debug interface accessible via P40 (TOOL0), P11 (TOOLRxD), and P12 (TOOLTxD) pins. This implements a 3-wire SWD-like protocol compatible with Renesas E2 studio and CS+ IDEs, enabling full flash programming, real-time variable watch, and breakpoint debugging without requiring a separate debug probe header.
Can the R7F102GBC2DNP#UA0 operate from a coin cell battery, and what is its lowest power state current?
Yes, the R7F102GBC2DNP#UA0 is designed for coin-cell operation: its STOP mode draws just 200 nA (typ.) with RTC and key interrupts enabled, and its SNOOZE mode sequencer can autonomously poll sensors while consuming sub-µA average current. Combined with 1.6 V minimum VDD, it supports direct CR2032 (3 V) or BR2032 (2.8 V) operation - verified in R01DS0424EJ0120 Section 1.1.
Is there a pin-compatible upgrade path from the R7F102GBC2DNP#UA0 to a higher-flash variant?
Yes, the R7F102GBE2DNP#UA0 is a direct pin- and software-compatible upgrade offering 64 KB code flash while retaining identical 32-pin HWQFN packaging, peripheral set, power characteristics, and temperature rating. No PCB or firmware changes are required beyond recompilation and flash partition adjustment - confirmed in Renesas Table 1-1 "List of Ordering Part Numbers" and Section 1.2.
R7F102GBC2DNP#UA0 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GBC2DNP#UA0 FAQ
1.How can I place an order for R7F102GBC2DNP#UA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GBC2DNP#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 R7F102GBC2DNP#UA0 reliable?
The price and inventory of R7F102GBC2DNP#UA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GBC2DNP#UA0 is usually 5 days.
3.What payment methods are accepted for R7F102GBC2DNP#UA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GBC2DNP#UA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GBC2DNP#UA0?
R7F102GBC2DNP#UA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GBC2DNP#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 R7F102GBC2DNP#UA0?
For technical support, including R7F102GBC2DNP#UA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GBC2DNP#UA0 requirements.
6.How does Aetrix verify that R7F102GBC2DNP#UA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GBC2DNP#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 R7F102GBC2DNP#UA0 meets industry standards.
7.What is the process for return or replacement of R7F102GBC2DNP#UA0?
All R7F102GBC2DNP#UA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GBC2DNP#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 R7F102GBC2DNP#UA0 part is unused and in its original packaging.
Return procedure for R7F102GBC2DNP#UA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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