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Renesas R7F102GBC3CFP#BA0
- Part No.:
- R7F102GBC3CFP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7F102GBC3CFP#BA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K LQFP32 -4
- Quantity:
- Payment:
- Shipping:
Inventory:1,074
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Product details
Overview
R7F102GBC3CFP#BA0 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 (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 R7F102GBC3CFP#BA0 datasheet, R7F102GBC3CFP#BA0 pinout, R7F102GBC3CFP#BA0 application, or R7F102GBC3CFP#BA0 equivalent, key selection criteria include its 32-pin LQFP-0.8 mm pitch package, -40°C to +85°C industrial temperature grade, 32 KB flash/4 KB RAM memory configuration, CTSU2La capacitive touch unit, and SNOOZE mode sequencer for autonomous low-power sensing.
Technical Context
The RL78/G22 core implements a CISC architecture with 3-stage pipeline and configurable instruction timing (0.03125 µs at 32 MHz high-speed mode; 30.5 µs at 32.768 kHz ultra-low-speed mode). It supports multiply/divide/accumulate instructions and features a 1 MB address space with four banks of eight 8-bit general-purpose registers.
Power management includes HALT, STOP, and SNOOZE modes - the latter enabling CPU-free execution of up to 32 sequential commands via the SMS engine using 21 supported instructions. Peripheral integration includes Event Link Controller (ELC) for 20 configurable event signals, Data Transfer Controller (DTC), and dual-voltage detectors (LVD0/LVD1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing |
| Flash / RAM | 32 KB code flash (2 KB block size), 4 KB on-chip RAM, 2 KB data flash with background operation |
| Operating Voltage | 1.6 V to 5.5 V - enables 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 - extends battery life in intermittent-sensing applications |
| Capacitive Sensing | CTSU2La unit supporting up to 29 self-capacitance keys or matrix mutual-capacitance configurations |
| Timers & RTC | Eight 16-bit timer channels; 32-bit interval timer; dedicated RTC with alarm, calendar (1 sec–99 years), and clock correction |
| Communication | Up to 4 UARTA channels (LIN support), 6 I²C/Simplified I²C channels, 5 CSI (SPI-compatible) channels |
Pinout & Package
32-pin LQFP package (7 × 7 mm, 0.80-mm pitch), no exposed die pad; RoHS-compliant; industrial-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Primary SPI clock or I²C clock input; also serves as capacitive touch channel TS11 |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | UART0 receive, SPI input, I²C data, debug RX, and touch channel TS12 - multiplexed for compact peripheral routing |
| P12 | SO00/TxD0/TOOLTxD/TS13 | UART0 transmit, SPI output, debug TX, and touch channel TS13 - enables shared signal paths for HMI interfaces |
| P13 | TxD2/SO20/(SDAA0)/(TI04)/(TO04)/TS14 | Secondary UART2 TX or SPI2 output; supports SDAA0 (I²C slave address) and touch channel TS14 |
| P14 | RxD2/SI20/SDA20/(SCLA0)/(TI03)/(TO03)/TS15 | Secondary UART2 RX or SPI2 input; supports SCLA0 (I²C slave address) and touch channel TS15 |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor reference capacitor connection, RTC 1 Hz output, and I²C/SPI clock - consolidates timing and sensing functions |
| P60/P61 | SCLA0/SDAA0 | Dedicated I²C bus lines for secondary I²C interface - avoids contention with primary I²C (P10/P11) |
| VDD/VSS | Power supply pins | Single 1.6–5.5 V supply; decoupling required per datasheet (REGC capacitor 0.47–1 µF to VSS) |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 preconfigured commands (e.g., ADC sampling, CTSU measurement, comparison) without CPU wake-up - reduces average system power by >90% in periodic sensing |
| Capacitive Touch Unit (CTSU2La) | Supports both self- and mutual-capacitance methods on up to 29 pins; operates across full 1.8–5.5 V VDD range - eliminates external touch controller in cost-sensitive HMI designs |
| Data Flash Background Operation | Enables code execution from main flash while rewriting 2 KB data flash - allows real-time parameter updates without interrupting control loops |
| Event Link Controller (ELC) | Routes 20 peripheral events (e.g., timer overflow → ADC trigger → DMA transfer) without CPU intervention - simplifies deterministic timing in motor control and sensor fusion |
| Flexible Clock System | Three on-chip oscillators: high-speed (1–32 MHz ±1.0%), middle-speed (1–4 MHz adjustable), low-speed (32.768 kHz adjustable) - eliminates external crystals in many applications |
Applications
| Industrial Control Panel | Smart Thermostat |
|---|---|
|
Use Scenario: Wall-mounted HVAC interface with touch buttons, temperature/humidity sensing, and wireless communication. IC Role / Device Role / Timing Role: Main system controller managing capacitive touch inputs, analog sensor acquisition (ADC), RTC-based scheduling, and UART-to-module communication. Use Value: Integrated CTSU2La replaces discrete touch IC; 200 nA STOP mode extends battery life beyond 5 years in coin-cell-powered variants. |
Use Scenario: Battery-operated residential thermostat with ambient sensing, display backlight control, and BLE connectivity. IC Role / Device Role / Timing Role: Low-power host MCU handling touch UI, 10-bit ADC for NTC readings, PWM for backlight dimming, and UART to BLE SoC. Use Value: SNOOZE mode sequencer autonomously samples sensors and triggers wake-up only on threshold breach - cuts average current to <1 µA. |
| Programmable Logic Controller (PLC) I/O Module | Asset Tracking Beacon |
|
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager interfacing with RS-485 transceiver, opto-isolators, and status LEDs via 32-bit timer PWM. Use Value: ELC links timer overflow to GPIO toggle and UART transmission - ensures precise 9.6 kbps Modbus timing without software overhead. |
Use Scenario: GPS-denied indoor asset tag reporting location via BLE and UWB, powered by CR2032 battery. IC Role / Device Role / Timing Role: Sensor hub aggregating accelerometer (I²C), temperature (ADC), and button press (INTP) events before BLE packet assembly. Use Value: 32 KB flash stores firmware + BLE stack; data flash retains calibration offsets and last-known position across deep sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GBE3CFP#BA0 | Same package and pinout; 64 KB code flash, 2 KB data flash - doubles program storage but retains identical peripherals and power profile | Preferred where firmware complexity exceeds 32 KB or future OTA updates require headroom | Select when long-term firmware scalability is prioritized over BOM cost optimization |
| R7F102GBC3CNP#BA0 | Identical flash/RAM specs but in 32-pin HWQFN (5 × 5 mm, 0.5 mm pitch); lacks LQFP thermal mass and requires different PCB layout | Better suited for space-constrained designs where board area is critical and thermal dissipation is manageable | Choose for compact portable devices; avoid if existing LQFP footprint or reflow compatibility is required |
Compared with R7F102GBC3CFP#BA0, the R7F102GBE3CFP#BA0 offers scalable firmware capacity without altering hardware design, while the R7F102GBC3CNP#BA0 trades package familiarity for reduced board area - making the LQFP variant optimal for industrial panels requiring mechanical robustness and thermal stability.
Availability
R7F102GBC3CFP#BA0 is available at Aetrix Electronics and suitable for industrial control panels, smart thermostats, PLC I/O modules, and asset tracking beacons requiring stable component supply, long-lifecycle assurance, and qualified industrial-temperature-grade microcontrollers.
Supply support for R7F102GBC3CFP#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 targets cost-sensitive, ultra-low-power embedded applications requiring integrated capacitive touch, rich analog peripherals, and deterministic real-time performance - designed specifically for industrial HMI, sensor nodes, and battery-powered controls.
FAQ
What is the maximum operating frequency and clock accuracy of the R7F102GBC3CFP#BA0?
The R7F102GBC3CFP#BA0 supports a maximum high-speed on-chip oscillator frequency of 32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = −20°C to +85°C. It also provides selectable middle-speed (1–4 MHz) and low-speed (32.768 kHz) oscillators with adjustability - eliminating need for external crystals in most applications.
Does the R7F102GBC3CFP#BA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7F102GBC3CFP#BA0 integrates the CTSU2La capacitive touch unit supporting up to 29 touch channels. It operates in both self-capacitance mode (one pin per key) and mutual-capacitance matrix mode (transmit/receive pin pairs), with full functionality across its 1.8–5.5 V operating voltage range.
What are the memory resources allocated to the R7F102GBC3CFP#BA0?
The R7F102GBC3CFP#BA0 contains 32 KB of code flash memory (organized in 2 KB blocks), 4 KB of on-chip RAM, and 2 KB of data flash memory. The data flash supports background operation (BGO), allowing program execution during write/erase cycles, and guarantees 1,000,000 rewrite cycles (typical).
Which communication interfaces are available on the R7F102GBC3CFP#BA0, and are they pin-multiplexed?
The R7F102GBC3CFP#BA0 provides up to 4 UARTA channels (with LIN-bus support), 6 I²C/Simplified I²C channels, and 5 CSI (SPI-compatible) channels. All serial interfaces are fully pin-multiplexed - for example, P10/P11 serve as SCK00/SDA00 (I²C) or SCK00/SI00 (SPI) or RxD0/TxD0 (UART), configured via peripheral I/O redirection register (PIOR).
How does the SNOOZE mode sequencer (SMS) function in the R7F102GBC3CFP#BA0, and what tasks can it perform autonomously?
The SNOOZE mode sequencer (SMS) in the R7F102GBC3CFP#BA0 executes up to 32 predefined commands - including ADC conversions, CTSU measurements, value comparisons, and register writes - without CPU involvement. It operates independently of flash and RAM, enabling ultra-low-power periodic sensing (e.g., temperature polling every 10 seconds) while maintaining 200 nA system current.
R7F102GBC3CFP#BA0 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GBC3CFP#BA0 FAQ
1.How can I place an order for R7F102GBC3CFP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GBC3CFP#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 R7F102GBC3CFP#BA0 reliable?
The price and inventory of R7F102GBC3CFP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GBC3CFP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F102GBC3CFP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GBC3CFP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GBC3CFP#BA0?
R7F102GBC3CFP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GBC3CFP#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 R7F102GBC3CFP#BA0?
For technical support, including R7F102GBC3CFP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GBC3CFP#BA0 requirements.
6.How does Aetrix verify that R7F102GBC3CFP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GBC3CFP#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 R7F102GBC3CFP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F102GBC3CFP#BA0?
All R7F102GBC3CFP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GBC3CFP#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 R7F102GBC3CFP#BA0 part is unused and in its original packaging.
Return procedure for R7F102GBC3CFP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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