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Renesas R7F102G6C3CSP#CA0
- Part No.:
- R7F102G6C3CSP#CA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R7F102G6C3CSP#CA0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,235
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Product details
Overview
R7F102G6C3CSP#CA0 from Renesas is a 20-pin LSSOP ultra-low-power 16-bit RL78/G22 microcontroller with 32 KB code flash, 4 KB RAM, and integrated capacitive touch sensing for up to 29 keys. It operates from 1.6 V to 5.5 V, achieves 37.5 µA/MHz active current and 200 nA stop current, and targets battery-powered HMI and industrial control applications.
For engineers reviewing the R7F102G6C3CSP#CA0 datasheet, R7F102G6C3CSP#CA0 pinout, R7F102G6C3CSP#CA0 application, or R7F102G6C3CSP#CA0 equivalent, key selection criteria include its 20-pin LSSOP-20 package, 32 KB flash/4 KB RAM configuration, C-grade (-40 to +85°C) industrial temperature rating, and support for UART, I²C, SPI, RTC, and CTSU2La capacitive sensing without external components.
Technical Context
The R7F102G6C3CSP#CA0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs at 32 MHz or 30.5 µs at 32.768 kHz). It integrates a SNOOZE mode sequencer (SMS) enabling low-power background processing of up to 32 commands without CPU wake-up.
Peripheral integration includes an 8-/10-bit ADC with 10 analog inputs and internal 1.48 V reference, dual I²C interfaces (IICA), up to four UARTA channels (one supporting LIN), and a data flash memory block (2 KB) supporting background operation and 1 million rewrite cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and variable-speed instruction execution |
| Flash / RAM | 32 KB code flash + 2 KB data flash + 4 KB SRAM - enables firmware updates and parameter storage without external memory |
| Operating Voltage | 1.6 V to 5.5 V - supports direct connection to Li-ion, alkaline, or regulated 3.3 V/5 V rails |
| Power Consumption | 37.5 µA/MHz active, 200 nA STOP mode - extends battery life in portable and energy-harvesting systems |
| Capacitive Sensing | CTSU2La unit supporting 29 self-capacitance keys or matrix configurations - eliminates need for dedicated touch controller IC |
| Timers & RTC | Eight 16-bit TAU channels, 32-bit interval timer, and calendar RTC with alarm and correction - enables precise timekeeping and periodic wake-up |
| Communications | Up to 6 I²C, 4 UARTA (LIN-capable), and 5 CSI/SPI channels - provides flexible peripheral connectivity for sensor hubs and control nodes |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), lead-free, RoHS-compliant, #CA0 magazine packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Analog input / Timer input / UART TX | ANI17, TI00, TxD1 - supports analog sensing, edge-triggered timing, and serial communication on same pin |
| P01 | Analog input / Timer output / UART RX | ANI16, TO00, RxD1 - enables dual-role signal routing for compact PCB layout |
| P10–P12 | SPI/I²C/UART interface pins | SCK00/SCL00, SI00/RxD0/SDA00, SO00/TxD0 - multiplexed serial interfaces reduce pin count for mixed-protocol designs |
| P16–P17 | Timer I/O / Interrupt / Touch sense | TI01/TO01/INTP5/TS17, TI02/TO02/TS18 - supports PWM generation, interrupt handling, and capacitive sensing in shared resources |
| P20–P22 | Analog inputs / Reference voltage | ANI0/AVREFP, ANI1/AVREFM, ANI2/TS20 - provides differential ADC reference and 3-channel analog front-end |
| P30 | RTC clock output / Touch sense / Interrupt | TSCAP, RTC1HZ, INTP3 - delivers real-time clock signal while serving as touch sensor capacitor terminal and interrupt source |
| P40 | Debug interface | TOOL0 - enables on-chip debugging and programming via single-wire interface without dedicated debug header |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up - ensures reliable initialization under brown-out or power-up conditions |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V supply with decoupling - simplifies power design versus multi-rail MCUs |
| REGC | Regulator bypass capacitor | Connects to VSS via 0.47–1 µF capacitor - stabilizes internal LDO for consistent low-power operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed commands (e.g., ADC sampling, comparison, GPIO toggle) autonomously - reduces average system power by eliminating CPU wake-ups for routine tasks |
| Capacitive Touch Sensing Unit (CTSU2La) | Supports self- and mutual-capacitance methods with built-in noise rejection - enables robust touch buttons/sliders without external RC networks or calibration firmware |
| Data Flash with Background Operation (BGO) | 2 KB data flash allows concurrent program execution and nonvolatile parameter writes - maintains real-time responsiveness during field firmware updates or logging |
| Flexible Clock System | High-speed (32 MHz ±1.0%), middle-speed (4/2/1 MHz), and low-speed (32.768 kHz) on-chip oscillators - eliminates external crystals for most applications while maintaining timing accuracy |
| Event Link Controller (ELC) | 20-event hardware routing between peripherals - enables deterministic, low-latency signal chaining (e.g., ADC end-of-conversion triggers DMA transfer) without CPU intervention |
Applications
| Smart Home Thermostat Interface | Industrial Sensor Node |
|---|---|
Use Scenario: A wall-mounted thermostat with capacitive touch buttons, ambient temperature/humidity sensing, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing touch UI, ADC acquisition, RTC-based scheduling, and UART-to-ESP32 bridge. Use Value: Integrated CTSU2La replaces discrete touch IC; 200 nA STOP mode extends CR2032 battery life beyond 2 years; 32 KB flash hosts full UI stack and OTA update handler. | Use Scenario: Battery-powered vibration/temperature monitor deployed on factory motors with LoRaWAN backhaul. IC Role / Device Role / Timing Role: Data acquisition engine performing scheduled ADC reads, timestamping via RTC, and buffering before transmission. Use Value: SMS sequencer automates sensor polling and threshold checks in STOP mode; BGO enables seamless logging to data flash during active radio transmission. |
| Portable Medical Glucometer | Appliance Control Panel |
Use Scenario: Handheld blood glucose meter with LCD, button interface, and USB charging. IC Role / Device Role / Timing Role: System-on-chip handling strip detection (ADC), touch key scan, display timing, and USB enumeration logic. Use Value: Single 1.6–5.5 V supply simplifies power design across battery and USB modes; 10-channel ADC supports multiple biosensor inputs; 37.5 µA/MHz minimizes active power during measurement. | Use Scenario: Microwave oven control panel with rotary encoder, LED indicators, buzzer, and safety interlocks. IC Role / Device Role / Timing Role: Real-time safety monitor and HMI coordinator executing PWM for buzzer, GPIO for relays, and capacitive keys for user input. Use Value: PCLBUZ0/PCLBUZ1 timers generate precise audio tones; INTP0–INTP5 support fast response to door switch and keypad events; 4 KB RAM accommodates state machine and debounce buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G6E3CSP#CA0 | 64 KB code flash, same 20-pin LSSOP package, identical peripherals and pinout | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed | Select if bootloader, crypto stack, or GUI assets demand >32 KB flash; no PCB change required |
| RL78/G13 R5F100LEAFB#50 | Older RL78/G13 family; 32 KB flash, 4 KB RAM, but lacks CTSU2La, SMS, and BGO data flash | Legacy designs where touch sensing is implemented externally or not required | Choose only for drop-in replacement in existing G13-based designs; no CTSU2La or SNOOZE capability |
Compared with R7F102G6E3CSP#CA0, the R7F102G6C3CSP#CA0 trades 32 KB less flash for cost-sensitive volume production, while versus RL78/G13, it adds autonomous touch sensing and ultra-low-power sequencing-enabling new classes of maintenance-free edge devices.
Availability
R7F102G6C3CSP#CA0 is available at Aetrix Electronics and suitable for smart home thermostats, industrial sensor nodes, portable medical devices, and appliance control panels requiring stable component supply and long-term manufacturability.
Supply support for R7F102G6C3CSP#CA0 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 true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interface and sensor-edge applications requiring integrated touch, RTC, and autonomous peripheral sequencing.
FAQ
What is the maximum operating frequency and supply voltage range for the R7F102G6C3CSP#CA0?
The R7F102G6C3CSP#CA0 operates at up to 32 MHz using its high-speed on-chip oscillator and supports a wide supply voltage range of 1.6 V to 5.5 V. This allows direct interfacing with common battery chemistries (e.g., single-cell Li-ion or 3× alkaline) and eliminates level-shifting requirements in mixed-voltage systems. The ±1.0% oscillator accuracy over -40 to +85°C ensures reliable timing without external crystals in most applications.
Does the R7F102G6C3CSP#CA0 support capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102G6C3CSP#CA0 integrates the CTSU2La capacitive touch sensing unit capable of supporting up to 29 self-capacitance keys or matrix-configured touch pads. It operates across the full 1.8–5.5 V VDD range and includes built-in noise cancellation algorithms, enabling robust touch performance in noisy industrial or consumer environments without external components or calibration firmware.
What debug interface does the R7F102G6C3CSP#CA0 use, and what pins are required?
The R7F102G6C3CSP#CA0 uses Renesas' single-wire debug interface (SWD) accessible via the TOOL0 (P40) and RESET pins. No dedicated debug header or additional pins are required - this two-pin solution enables full on-chip debugging, flash programming, and real-time trace in production and development, reducing PCB footprint and BOM cost compared to JTAG-based alternatives.
How does the SNOOZE mode sequencer (SMS) in the R7F102G6C3CSP#CA0 reduce system power consumption?
The SNOOZE mode sequencer (SMS) in the R7F102G6C3CSP#CA0 executes up to 32 predefined commands-including ADC sampling, register comparison, and GPIO toggling-without waking the CPU, flash, or RAM. This enables autonomous, low-power background processing (e.g., periodic sensor polling or threshold checking), reducing average current draw significantly versus CPU-driven polling loops, especially in duty-cycled applications like wireless sensors.
Is the R7F102G6C3CSP#CA0 pin-compatible with other RL78/G22 variants in the same package?
Yes, the R7F102G6C3CSP#CA0 is fully pin-compatible with all other 20-pin LSSOP RL78/G22 variants, including R7F102G6E3CSP#CA0 (64 KB flash) and R7F102G6C2DSP#CA0 (consumer-grade -20 to +75°C). Pin functions, electrical characteristics, and package dimensions are identical - enabling one PCB design to support multiple memory grades and temperature ranges through firmware and ordering part number selection.
R7F102G6C3CSP#CA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G22
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- Capacitive Touch, LVD, POR, PWM, WDT
- Number of I/O:
- 15
- 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:
R7F102G6C3CSP#CA0 FAQ
1.How can I place an order for R7F102G6C3CSP#CA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G6C3CSP#CA0 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 R7F102G6C3CSP#CA0 reliable?
The price and inventory of R7F102G6C3CSP#CA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G6C3CSP#CA0 is usually 5 days.
3.What payment methods are accepted for R7F102G6C3CSP#CA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G6C3CSP#CA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G6C3CSP#CA0?
R7F102G6C3CSP#CA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G6C3CSP#CA0 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 R7F102G6C3CSP#CA0?
For technical support, including R7F102G6C3CSP#CA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G6C3CSP#CA0 requirements.
6.How does Aetrix verify that R7F102G6C3CSP#CA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G6C3CSP#CA0 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 R7F102G6C3CSP#CA0 meets industry standards.
7.What is the process for return or replacement of R7F102G6C3CSP#CA0?
All R7F102G6C3CSP#CA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G6C3CSP#CA0, 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 R7F102G6C3CSP#CA0 part is unused and in its original packaging.
Return procedure for R7F102G6C3CSP#CA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G6C3CSP#CA0 Tags
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