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Renesas R7F100GSN3CFB#AA0
- Part No.:
- R7F100GSN3CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSN3CFB#AA0.pdf
- Description:
- IC MCU 16BIT 768KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:288
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Product details
Overview
R7F100GSN3CFB#AA0 from Renesas is a 128-pin, industrial-grade RL78/G23 16-bit MCU with 768 KB code flash, 48 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V. It delivers true low-power operation (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (up to 64 keys), and dual 12-bit A/D converters for embedded control in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F100GSN3CFB#AA0 datasheet, R7F100GSN3CFB#AA0 pinout, R7F100GSN3CFB#AA0 application, or R7F100GSN3CFB#AA0 equivalent, key selection criteria include its LFQFP-128 (0.5 mm pitch) package, -40°C to +105°C temperature rating, SNOOZE mode sequencer for autonomous low-power sensing, and hardware-accelerated CTSU2L capacitive touch engine.
Technical Context
The R7F100GSN3CFB#AA0 implements the RL78 CPU core with 3-stage 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). Its power management includes HALT, STOP, and SNOOZE modes - the latter enabling 32-step autonomous sequencing without CPU, flash, or RAM activation.
Peripheral integration includes up to 26-channel 12-bit A/D converter with internal 1.48 V reference and temperature sensor, dual 8-bit D/A outputs, two comparators with selectable internal/external references, and a logic/event link controller (ELCL) for configurable signal routing between peripherals without software intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; supports multiply/divide/accumulate instructions |
| Memory | 768 KB code flash (2 KB block size), 48 KB on-chip RAM, 8 KB data flash with background operation (BGO) |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention current for full 4 KB RAM retention |
| Operating Voltage & Temp | 1.6–5.5 V supply; rated for -40°C to +105°C ambient (industrial grade, "3C" field code) |
| Analog Peripherals | 26-channel 12-bit A/D converter with internal 1.48 V reference and temperature sensor; 2-channel 8-bit D/A; 2-channel comparator |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual capacitance (8×8 matrix = 64 keys) at VDD = 1.8–5.5 V |
| Timers & RTC | 16-bit timer array (16 channels), 32-bit interval timer (1×32-bit / 2×16-bit / 4×8-bit modes), RTC with alarm and clock correction |
Pinout & Package
Package: LFQFP-128 (14 × 20 mm, 0.50-mm pitch), lead-free, RoHS-compliant, industrial temperature grade (3C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / P122 | XT1 / XT2 crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC and main system clock; enables high-accuracy timing independent of on-chip oscillators |
| P30 / P31 | TSCAP / TS01 | Dedicated capacitive touch sensing pins; TSCAP provides common electrode drive for CTSU2L self/mutual capacitance measurement |
| P60 / P61 | SCLA0 / SDAA0 | I²C bus interface pins (SCL/SDA) for slave or master operation; support standard/fast-mode (100/400 kHz) and simplified I²C protocols |
| P10–P17 | SAU0–SAU1 serial array unit | Configurable UART/SPI/I²C channels; enable simultaneous multi-protocol communication (e.g., UART for debug, SPI for display, I²C for sensors) |
| VDD / VSS | Main power supply rails | Single 1.6–5.5 V supply; VSS must be connected to ground plane with low-impedance path; REGC requires 0.47–1 µF capacitor to VSS |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed steps (e.g., ADC sampling → compare → GPIO toggle) autonomously; eliminates CPU wakeups for periodic sensing |
| Capacitive Touch Unit (CTSU2L) | Hardware-accelerated touch engine supporting both self- and mutual-capacitance methods; immune to noise via spread-spectrum modulation |
| Data Flash Background Operation (BGO) | Enables full program execution from code flash while rewriting data flash - critical for over-the-air firmware updates and logging |
| Event Link Controller (ELCL) | Configurable hardware logic that routes signals (e.g., timer overflow → ADC trigger → interrupt) without CPU involvement, reducing latency and power |
| Low-Power Oscillator Options | Three independent on-chip oscillators: high-speed (1–32 MHz ±1.0%), middle-speed (1–4 MHz adjustable), and low-speed (32.768 kHz adjustable) |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
|
Use Scenario: Touch-enabled operator interface on factory-floor equipment with LED backlighting and real-time status feedback. IC Role / Device Role / Timing Role: Main controller executing UI logic, driving capacitive touch overlay, managing display interface (SPI), and handling CAN/UART fieldbus communication. Use Value: CTSU2L enables robust touch detection under EMI-rich environments; SNOOZE mode extends battery life during idle periods without sacrificing responsiveness. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in remote locations for 5+ years. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition (A/D, I²C), local data processing, low-power wireless transmission (via UART to sub-GHz transceiver), and RTC-based wakeup scheduling. Use Value: 210 nA RAM retention preserves configuration and calibration data; BGO allows secure firmware updates without interrupting sensor logging. |
| Energy Metering Systems | Home Appliance Control |
|
Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse output, and optical/IR communication port. IC Role / Device Role / Timing Role: Metrology co-processor interfacing with isolated ADCs, calculating kWh/kVAR, managing security features (flash protection), and driving LCD/LED displays. Use Value: Dual 12-bit A/D converters with internal reference ensure accurate voltage/current sampling; flash security prevents unauthorized firmware modification. |
Use Scenario: Washing machine main control board requiring motor control (PWM), water level sensing, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Central MCU coordinating motor driver (via TAU PWM), capacitive buttons, temperature/pressure analog inputs, buzzer feedback, and fault diagnostics. Use Value: Controlled-current drive ports directly interface with LEDs/buzzers; built-in BCD correction simplifies time/date display formatting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GSL3CFB#AA0 | Same 128-pin LFQFP package, identical peripheral set, but reduced memory: 512 KB code flash, 48 KB RAM, 8 KB data flash | Targeted at cost-sensitive industrial designs where 768 KB flash overhead is unnecessary; retains full CTSU2L, SMS, and BGO functionality | Select when firmware footprint fits within 512 KB and bill-of-materials cost optimization is prioritized over future firmware headroom |
| R7F100GMN3CFB#AA0 | 80-pin LFQFP variant (12 × 12 mm); same 768 KB flash, 48 KB RAM, but fewer I/O (80 vs. 128 pins) and reduced peripheral channel count (e.g., 16 vs. 26 ADC channels) | Suitable for space-constrained applications where full 128-pin I/O density is not required, such as compact appliance controllers or gateway edge nodes | Choose for PCB area reduction and lower assembly cost when pin count and peripheral channel requirements align with 80-pin configuration |
Compared with R7F100GSL3CFB#AA0, the R7F100GSN3CFB#AA0 provides 256 KB additional code flash for complex firmware or bootloader redundancy; versus R7F100GMN3CFB#AA0, it delivers 48 extra I/O pins and expanded analog/timer resources for highly integrated systems requiring maximum peripheral concurrency.
Availability
R7F100GSN3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, energy metering systems, and home appliance control requiring stable component supply across extended production lifecycles.
Supply support for R7F100GSN3CFB#AA0 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/G23 product line is engineered for ultra-low-power embedded control in industrial and consumer devices, emphasizing energy efficiency, integrated analog peripherals, and hardware-accelerated autonomous operation.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R7F100GSN3CFB#AA0?
The R7F100GSN3CFB#AA0 operates up to 32 MHz using the high-speed on-chip oscillator (±1.0% accuracy). At this frequency, its typical active current is 41 µA per MHz - resulting in ~1.31 mA total at 32 MHz with all peripherals disabled. This value scales linearly with clock speed and active peripheral count.
Does the R7F100GSN3CFB#AA0 support hardware encryption or secure boot features?
The R7F100GSN3CFB#AA0 does not integrate dedicated cryptographic accelerators or secure boot ROM. However, it provides flash memory security functions including block erase/write prohibition and flash shield window to prevent unauthorized readout or modification of protected code regions.
Can the R7F100GSN3CFB#AA0's capacitive touch unit operate reliably in wet or noisy environments?
Yes - the CTSU2L unit in the R7F100GSN3CFB#AA0 employs spread-spectrum modulation and automatic noise cancellation algorithms. Tested performance confirms reliable touch detection with water droplets and under 10 V/m conducted EMI, meeting IEC 61000-4-3 Level 3 immunity requirements when properly laid out.
What debugging interfaces are supported by the R7F100GSN3CFB#AA0?
The R7F100GSN3CFB#AA0 supports on-chip debugging via the single-wire debug (SWD) interface using the TOOL0 pin (P40) and RESET pin. It is compatible with Renesas E2 studio, CS+ IDE, and third-party debug probes supporting SWD protocol - no JTAG header required.
Is the R7F100GSN3CFB#AA0 pin-compatible with other RL78/G23 variants in the same package?
Yes - all RL78/G23 MCUs in the LFQFP-128 package (e.g., R7F100GSL3CFB#AA0, R7F100GSJ3CFB#AA0) share identical pinouts and electrical characteristics. Function allocation (e.g., ADC channel mapping, UART assignment) is consistent across the family, enabling drop-in replacement where memory/peripheral requirements align.
R7F100GSN3CFB#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- RL78/G23
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 116
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 26x8/10/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GSN3CFB#AA0 FAQ
1.How can I place an order for R7F100GSN3CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSN3CFB#AA0 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 R7F100GSN3CFB#AA0 reliable?
The price and inventory of R7F100GSN3CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSN3CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSN3CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSN3CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSN3CFB#AA0?
R7F100GSN3CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSN3CFB#AA0 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 R7F100GSN3CFB#AA0?
For technical support, including R7F100GSN3CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSN3CFB#AA0 requirements.
6.How does Aetrix verify that R7F100GSN3CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSN3CFB#AA0 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 R7F100GSN3CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSN3CFB#AA0?
All R7F100GSN3CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSN3CFB#AA0, 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 R7F100GSN3CFB#AA0 part is unused and in its original packaging.
Return procedure for R7F100GSN3CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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