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Renesas R7F100GSL3CFB#BA0
- Part No.:
- R7F100GSL3CFB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSL3CFB#BA0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:576
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Product details
Overview
R7F100GSL3CFB#BA0 from Renesas is a 128-pin, industrial-grade RL78/G23 16-bit MCU with 384 KB code flash, 8 KB data flash, and 32 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 TAU timers, RTC, 12-bit ADC (26 channels), dual 8-bit DACs, and UART/I²C/SPI interfaces - deployed in smart industrial HMI panels requiring robust touch control and extended battery life.
For engineers reviewing the R7F100GSL3CFB#BA0 datasheet, R7F100GSL3CFB#BA0 pinout, R7F100GSL3CFB#BA0 application, or R7F100GSL3CFB#BA0 equivalent, key selection criteria include its LFQFP-128 (0.5 mm pitch) package, -40°C to +105°C industrial temperature rating, SNOOZE mode sequencer for autonomous low-power sensor polling, and CTSU2L capacitive sensing unit supporting mutual-capacitance matrix configurations.
Technical Context
The R7F100GSL3CFB#BA0 implements the RL78 CPU core with a 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 architecture includes HALT, STOP, and SNOOZE modes, with hardware-assisted wake-up and background data flash rewriting via BGO.
Peripheral integration centers on event-driven operation: the Event Link Controller (ELCL) enables direct signal routing between functions (e.g., ADC trigger → DMA transfer), while the SNOOZE Mode Sequencer executes up to 32 preconfigured commands-including ADC sampling, comparison, and conditional branching-without CPU intervention or RAM/flash activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and ultra-low-power sleep/wake cycles. |
| Flash Memory | 384 KB code flash + 8 KB data flash; supports self-programming with boot swapping and flash shield window for secure firmware updates. |
| RAM | 32 KB on-chip RAM; retains full 32 KB at 210 nA in STOP mode, enabling rapid wake-up with state preservation. |
| Operating Voltage | 1.6–5.5 V single supply; eliminates need for external voltage regulators in multi-rail industrial systems. |
| Temperature Range | -40°C to +105°C (industrial grade); qualified for use in motor drives, PLC I/O modules, and factory automation edge nodes. |
| Capacitive Sensing | CTSU2L unit supporting 64-key mutual-capacitance matrix (8×8) or 32-key self-capacitance; operates down to 1.8 V with built-in noise suppression. |
| Low-Power Modes | HALT (0.29 µA), STOP (0.34 µA), SNOOZE (1.2 µA avg); SNOOZE sequencer handles periodic ADC reads and comparisons autonomously. |
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 32.768 kHz RTC crystal and up to 20 MHz main system crystal; enables precise timekeeping and stable high-speed operation. |
| P30 / P31 / P70–P73 | TSCAP / TSxx touch sense pins | Dedicated CTSU2L input pins; enable mutual-capacitance scanning across up to 64 electrodes without GPIO resource contention. |
| P60 / P61 / P62 | SCLA0 / SDAA0 / CCD06 | I²C bus interface (SCLA0/SDAA0) and additional capacitive sensing channel (CCD06); allows concurrent touch sensing and sensor communication. |
| P10–P17 | SCK00/SI00/SO00, SCK20/SI20/SO20, etc. | Three independent serial array units (SAU); support simultaneous UART (LIN-capable), SPI, and I²C with flexible pin remapping via PIOR. |
| VDD / VSS / REGC | Power supply and regulator capacitor | Single 1.6–5.5 V supply; REGC requires 0.47–1 µF capacitor to VSS for internal LDO stability - critical for low-noise ADC and CTSU operation. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step command sequences (ADC read, compare, branch) autonomously - reduces CPU wake-ups by >90% in periodic sensor polling applications. |
| Event Link Controller (ELCL) | Hardware routing of peripheral events (e.g., TAU overflow → DTC transfer → RAM store); eliminates software interrupt latency and CPU overhead. |
| Background Operation (BGO) | Enables full CPU execution from code flash while rewriting data flash - supports over-the-air firmware updates without system interruption. |
| Capacitive Touch Unit (CTSU2L) | Integrated hardware accelerator for mutual/self-capacitance sensing; achieves <100 ms full 64-key scan at 2.5 V with built-in noise cancellation. |
| Real-Time Clock (RTC) | Full calendar (seconds to years), alarm interrupt, and ±1 ppm clock correction via sub-second adjustment - no external RTC IC required. |
| Controlled Current Drive Ports | 6–8 pins with programmable 2–12 mA drive strength; directly drive LEDs or small solenoids without external drivers in HMI and actuator interfaces. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
|
Use Scenario: Touch-enabled operator interface on CNC machine controllers with ambient temperature up to +105°C and EMI-rich factory floor environment. IC Role / Device Role / Timing Role: Main controller executing UI logic, managing capacitive touch overlay, driving segmented LCD, and communicating via RS-485 UART. Use Value: CTSU2L's noise-immune mutual-capacitance scanning ensures reliable touch detection despite motor drive harmonics; SNOOZE mode extends backup battery life to >5 years. |
Use Scenario: Battery-powered predictive maintenance node monitoring vibration, temperature, and current on HVAC compressors. IC Role / Device Role / Timing Role: Data acquisition hub performing scheduled ADC sampling, FFT preprocessing, and BLE-ready UART packetization. Use Value: 210 nA STOP-mode retention preserves RAM state during 10-minute sleep intervals; ELCL-triggered DTC transfers eliminate CPU involvement in sensor data capture. |
| Programmable Logic Controllers (PLCs) | Energy Metering Interfaces |
|
Use Scenario: Modular I/O expansion module with isolated digital inputs, analog current loop outputs, and local diagnostics. IC Role / Device Role / Timing Role: Real-time I/O manager handling pulse-width modulation, watchdog supervision, and CAN/LIN communication stack. Use Value: Controlled-current drive ports directly source/sink 4–20 mA loops; RTC provides accurate timestamping for event logs and firmware update scheduling. |
Use Scenario: DIN-rail mounted electricity meter front-end with tamper detection, LED pulse output, and optical port communication. IC Role / Device Role / Timing Role: Metrology co-processor interfacing with sigma-delta ADCs, managing tariff switching, and driving optical IR transceiver. Use Value: Dual 8-bit DACs generate precise reference voltages for anti-tamper comparators; 384 KB flash accommodates multiple tariff tables and cryptographic libraries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GSK3CFB#BA0 | Same 128-pin LFQFP package, identical peripherals, but 256 KB code flash / 24 KB RAM. | Lower memory footprint suits simpler HMI or sensor fusion tasks without complex UI rendering or large lookup tables. | Select when application firmware size remains under 220 KB and RAM usage stays below 20 KB - reduces cost without sacrificing pin compatibility or peripheral set. |
| R7F100GSN3CFB#BA0 | Same 128-pin LFQFP package, 768 KB code flash / 48 KB RAM, higher max operating frequency (32 MHz vs. 24 MHz). | Required for advanced applications involving real-time audio processing, larger OTA update images, or multi-threaded RTOS workloads. | Choose when future firmware scalability, cryptographic acceleration, or concurrent high-bandwidth peripherals (e.g., dual UART + SPI + I²C) demand headroom beyond R7F100GSL3CFB#BA0. |
Compared with R7F100GSK3CFB#BA0, the R7F100GSL3CFB#BA0 provides 128 KB more flash and 8 KB more RAM for enhanced feature sets and field-upgrade resilience; versus R7F100GSN3CFB#BA0, it trades 384 KB flash and 16 KB RAM for lower dynamic power and cost - ideal for thermally constrained industrial enclosures.
Availability
R7F100GSL3CFB#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, PLC I/O modules, energy metering interfaces, and factory automation edge controllers requiring stable component supply across long production lifecycles.
Supply support for R7F100GSL3CFB#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/G23 product line is engineered for ultra-low-power industrial and consumer applications demanding high integration, robust capacitive touch, and long-term supply assurance - with emphasis on reducing system-level BOM count and simplifying certification.
FAQ
What is the maximum operating frequency of the R7F100GSL3CFB#BA0?
The R7F100GSL3CFB#BA0 supports a maximum operating frequency of 24 MHz using the high-speed on-chip oscillator. It also supports 32 MHz operation when an external crystal is used with the PLL, though the rated maximum system clock per datasheet is 24 MHz for guaranteed timing compliance across the full -40°C to +105°C range. The R7F100GSL3CFB#BA0 maintains full peripheral functionality and timing specifications at this speed.
Does the R7F100GSL3CFB#BA0 support hardware-based capacitive touch sensing?
Yes, the R7F100GSL3CFB#BA0 integrates the CTSU2L (Capacitive Touch Sensing Unit Level 2) which provides dedicated hardware for both self-capacitance (up to 32 keys) and mutual-capacitance (up to 64 keys in 8×8 matrix) sensing. It includes built-in noise cancellation, automatic calibration, and operates independently of the CPU - enabling low-power, high-reliability touch interfaces without firmware overhead. The R7F100GSL3CFB#BA0's CTSU2L is fully functional across its entire 1.8–5.5 V supply range.
What debug interface does the R7F100GSL3CFB#BA0 use?
The R7F100GSL3CFB#BA0 uses the Renesas FINE (Fast In-circuit NEtwork) debug interface, accessible via the TOOL0 (pin 1) and TOOLRxD/TOOLTxD (pins 25/24) signals. This 2-wire interface supports full JTAG-equivalent functionality - including halt/resume, breakpoint setting, memory inspection, and flash programming - using only two pins and requiring no dedicated debug header. The R7F100GSL3CFB#BA0's FINE interface remains active in all low-power modes except HALT, enabling deep-sleep debugging.
Can the R7F100GSL3CFB#BA0 perform background data flash writes while executing code from main flash?
Yes, the R7F100GSL3CFB#BA0 supports Background Operation (BGO) for data flash. While the CPU executes instructions from code flash memory, the data flash controller can simultaneously rewrite 8 KB of data flash - enabling seamless firmware updates, parameter logging, or configuration storage without interrupting real-time application tasks. The R7F100GSL3CFB#BA0 guarantees 1,000,000 write/erase cycles for data flash under typical operating conditions.
What is the purpose of the REGC pin on the R7F100GSL3CFB#BA0?
The REGC pin on the R7F100GSL3CFB#BA0 connects to the internal LDO regulator's stabilization capacitor - a mandatory 0.47 µF to 1 µF ceramic capacitor must be placed between REGC and VSS. This capacitor ensures stable internal voltage regulation for analog circuits (ADC, CTSU2L, comparators) and prevents oscillation or measurement drift. Omitting or undersizing the REGC capacitor on the R7F100GSL3CFB#BA0 causes erratic touch performance, ADC inaccuracies, and potential system resets.
R7F100GSL3CFB#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- RL78/G23
- Packaging:
- Tray
- 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:
- 512KB (512K 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 26x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GSL3CFB#BA0 FAQ
1.How can I place an order for R7F100GSL3CFB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSL3CFB#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 R7F100GSL3CFB#BA0 reliable?
The price and inventory of R7F100GSL3CFB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSL3CFB#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSL3CFB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSL3CFB#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSL3CFB#BA0?
R7F100GSL3CFB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSL3CFB#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 R7F100GSL3CFB#BA0?
For technical support, including R7F100GSL3CFB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSL3CFB#BA0 requirements.
6.How does Aetrix verify that R7F100GSL3CFB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSL3CFB#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 R7F100GSL3CFB#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSL3CFB#BA0?
All R7F100GSL3CFB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSL3CFB#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 R7F100GSL3CFB#BA0 part is unused and in its original packaging.
Return procedure for R7F100GSL3CFB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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