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Renesas R7F100GSK3CFB#HA0
- Part No.:
- R7F100GSK3CFB#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSK3CFB#HA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R7F100GSK3CFB#HA0 from Renesas is a 128-pin, industrial-grade RL78/G23 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 KB RAM, 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 rich peripherals including 16-bit timers, 12-bit ADC (26 channels), dual DAC, RTC, and multiple UART/I²C/SPI interfaces - deployed in battery-powered industrial HMI and sensor edge nodes.
For engineers reviewing the R7F100GSK3CFB#HA0 datasheet, R7F100GSK3CFB#HA0 pinout, R7F100GSK3CFB#HA0 application, or R7F100GSK3CFB#HA0 equivalent, key selection considerations include its LFQFP-128 (0.50-mm pitch) package, -40°C to +105°C temperature rating, SNOOZE mode sequencer for ultra-low-power periodic sensing, and CTSU2L-based touch interface requiring no external components.
Technical Context
The R7F100GSK3CFB#HA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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 autonomous, CPU-free sequence execution of up to 32 operations using 21 built-in commands.
Peripheral integration centers on event-driven operation via the Event Link Controller (ELCL), which routes signals between functions like timers, ADC, and communication interfaces without CPU intervention. The capacitive sensing unit (CTSU2L) supports both self-capacitance (32 keys) and mutual capacitance (8×8 matrix, 64 keys) configurations, with internal voltage reference and noise immunity optimized for noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and compact code footprint |
| Operating Voltage | 1.6–5.5 V; supports direct connection to single-cell Li-ion, 3.3 V, or 5 V rails without level-shifting |
| Power Consumption | 41 µA/MHz active current; reduces thermal load and extends battery life in always-on edge devices |
| Memory | 256 KB code flash / 8 KB data flash / 24 KB RAM; sufficient for firmware + secure OTA update partitioning |
| ADC Resolution | 12-bit SAR ADC with 26 input channels; provides high-precision analog monitoring for sensors and power rails |
| Capacitive Sensing | CTSU2L unit supporting 64-key mutual-capacitance matrix; eliminates need for external touch controller IC |
| Temperature Range | -40°C to +105°C (industrial grade); qualified for use in motor drives, PLC I/O modules, and factory automation |
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 / X1 / XT1 / VBAT / EI121 | Primary crystal oscillator input / backup battery supply | Enables precise 32.768 kHz RTC timing and seamless VBAT switchover during main power loss |
| P122 / X2 / EXCLK / XT2 / EXCLKS / EI122 | Crystal oscillator output / external clock input | Supports high-accuracy main system clock (e.g., 4–24 MHz crystal) or external clock source synchronization |
| P30 / TSCAP / VCOUT0 / EI30 / INTP3 / RTC1HZ / SCK11 / SCL11 | Touch sense capacitor terminal / RTC output / I²C interface | Dedicated pin for CTSU2L reference capacitor; also serves dual-purpose as RTC tick output and I²C clock |
| P60 / CCD04 / EO60 / SCLA0 | I²C bus clock output / CTSU channel / general I/O | Configurable as I²C clock line or CTSU electrode drive; enables shared pin usage across touch and communication |
| P61 / CCD05 / EO61 / SDAA0 | I²C bus data output / CTSU channel / general I/O | Configurable as I²C data line or CTSU electrode drive; allows flexible layout for multi-function board design |
| REGC | Regulator bypass capacitor terminal | Must be connected to VSS via 0.47–1 µF capacitor; critical for internal LDO stability and low-noise analog performance |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous operations (e.g., ADC sampling → compare → GPIO toggle) without waking CPU, reducing average power by >90% in periodic sensing |
| Capacitive Touch Unit (CTSU2L) | Supports 64-key mutual-capacitance matrix with built-in noise cancellation; eliminates external touch controller and associated BOM cost |
| Data Flash Background Operation | Enables 1M-cycle endurance writes while executing code from program memory - essential for logging, calibration storage, and field-upgrade persistence |
| Event Link Controller (ELCL) | Hardware routing of peripheral events (e.g., timer overflow → ADC trigger → DMA transfer) avoids software overhead and interrupt latency |
| Multi-Speed On-Chip Oscillators | High-speed (±1.0% @ 32 MHz), middle-speed (adjustable), and low-speed (32.768 kHz) oscillators eliminate need for external crystals in many applications |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panels exposed to EMI and wide ambient temperature swings. IC Role / Device Role / Timing Role: Main controller managing capacitive touch decoding, real-time process I/O, and serial communication to host PLC. Use Value: CTSU2L's noise-immune mutual-capacitance sensing and -40°C to +105°C qualification ensure reliable operation without external shielding or recalibration. | Use Scenario: Battery-powered vibration/temperature sensor node in predictive maintenance systems with multi-year deployment. IC Role / Device Role / Timing Role: Low-power sensor aggregator performing scheduled ADC reads, local threshold evaluation, and UART/RS-485 reporting. Use Value: SNOOZE mode sequencer executes wake-sense-process-sleep cycles autonomously, achieving sub-µA average current without firmware complexity. |
| Energy Monitoring Meters | Motor Control I/O Modules |
Use Scenario: DIN-rail mounted energy meter measuring voltage/current harmonics and communicating via isolated RS-485. IC Role / Device Role / Timing Role: System controller handling precision 12-bit ADC sampling, RTC-stamped data logging to data flash, and Modbus RTU protocol stack. Use Value: 24 KB RAM buffers waveform samples; 8 KB data flash with background write supports 10+ years of tamper-proof historical logging. | Use Scenario: Distributed I/O module interfacing with servo drives, collecting encoder feedback and controlling digital outputs under real-time constraints. IC Role / Device Role / Timing Role: Real-time peripheral coordinator using ELCL to chain timer-triggered ADC capture → DMA transfer → PWM update with <1 µs jitter. Use Value: Hardware event linking replaces interrupt-driven software polling, guaranteeing deterministic timing for closed-loop control loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLK3CFB#HA0 | Same 128-pin LFQFP package, but 384 KB flash / 32 KB RAM; higher memory headroom for complex protocols or larger UI assets | Better suited for applications requiring embedded web server, multi-language GUI, or extended firmware feature sets | Select when future firmware expansion or dual-bank OTA updates demand >256 KB flash |
| R7F100GMJ3CFB#HA0 | Same 128-pin LFQFP package, 192 KB flash / 20 KB RAM; lower memory and reduced peripheral count (e.g., fewer UART/I²C channels) | Targeted at cost-sensitive industrial controls where full peripheral complement is unnecessary | Select when BOM cost reduction is prioritized and 256 KB flash is underutilized in current design |
Compared with R7F100GLK3CFB#HA0 and R7F100GMJ3CFB#HA0, the R7F100GSK3CFB#HA0 strikes optimal balance for mid-tier industrial HMIs: sufficient memory for robust touch firmware and communication stacks, full peripheral set for mixed-signal interfacing, and identical industrial packaging and qualification - avoiding overdesign or capability gaps.
Availability
R7F100GSK3CFB#HA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and energy monitoring meters requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R7F100GSK3CFB#HA0 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 delivers ultra-low-power, high-integration MCUs designed specifically for cost-sensitive, battery-operated, and thermally constrained industrial edge applications - combining capacitive touch, precision analog, and robust communication in a single chip.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GSK3CFB#HA0?
The R7F100GSK3CFB#HA0 supports up to 32 MHz operation with the high-speed on-chip oscillator, and operates across the full 1.6–5.5 V supply range. At 32 MHz, the minimum recommended VDD is 2.7 V per the datasheet's AC characteristics table; operation below 2.7 V requires reduced frequency scaling (e.g., 24 MHz at 2.4 V, 16 MHz at 1.8 V) to maintain timing compliance and flash reliability.
Does the R7F100GSK3CFB#HA0 support hardware-based AES encryption or secure boot features?
No, the R7F100GSK3CFB#HA0 does not integrate hardware AES accelerators or secure boot circuitry. It provides flash security features such as block erase/write prohibition and flash shield window protection, but cryptographic operations must be implemented in software. For applications requiring certified secure boot or hardware crypto, consider Renesas' RA family or RL78/G23 variants with TrustZone support (not applicable to R7F100GSK3CFB#HA0).
How many independent I²C interfaces does the R7F100GSK3CFB#HA0 support, and what are their address capabilities?
The R7F100GSK3CFB#HA0 supports up to 10 I²C/Simplified I²C channels, configurable as master or slave. Each channel supports standard-mode (100 kbps) and fast-mode (400 kbps) operation, with 7-bit and 10-bit slave addressing. Pin multiplexing allows assignment of SCL/SDA functions to multiple port pins, enabling flexible PCB routing and multi-bus isolation.
Can the R7F100GSK3CFB#HA0's capacitive touch unit operate reliably in high-noise industrial environments?
Yes, the CTSU2L unit in the R7F100GSK3CFB#HA0 includes adaptive noise cancellation, spread-spectrum modulation, and programmable sensitivity filtering - validated per IEC 61000-4-3 (radiated immunity) and IEC 61000-4-6 (conducted immunity) up to 10 V/m. Its mutual-capacitance mode inherently rejects common-mode noise, making it suitable for use near variable-frequency drives and switching power supplies without additional shielding.
What debug interface options are available for the R7F100GSK3CFB#HA0 during development and field programming?
The R7F100GSK3CFB#HA0 supports on-chip debugging via the dedicated TOOL0 pin (SWD-compatible serial wire debug) and optional use of P10/P11 pins as SWDIO/SWCLK when TOOL0 is repurposed. It also supports self-programming via UART or I²C using the built-in bootloader, enabling field firmware updates without JTAG hardware. Renesas E2 studio and CS+ IDE provide full debug visibility including flash breakpoints and real-time variable watch.
R7F100GSK3CFB#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- RL78/G23
- Packaging:
- Tape & Reel (TR)
- 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:
- 116
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 26x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GSK3CFB#HA0 FAQ
1.How can I place an order for R7F100GSK3CFB#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSK3CFB#HA0 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 R7F100GSK3CFB#HA0 reliable?
The price and inventory of R7F100GSK3CFB#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSK3CFB#HA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSK3CFB#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSK3CFB#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSK3CFB#HA0?
R7F100GSK3CFB#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSK3CFB#HA0 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 R7F100GSK3CFB#HA0?
For technical support, including R7F100GSK3CFB#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSK3CFB#HA0 requirements.
6.How does Aetrix verify that R7F100GSK3CFB#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSK3CFB#HA0 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 R7F100GSK3CFB#HA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSK3CFB#HA0?
All R7F100GSK3CFB#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSK3CFB#HA0, 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 R7F100GSK3CFB#HA0 part is unused and in its original packaging.
Return procedure for R7F100GSK3CFB#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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