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Renesas R7F100GSK3CFB#AA0
- Part No.:
- R7F100GSK3CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSK3CFB#AA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:360
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Product details
Overview
R7F100GSK3CFB#AA0 from Renesas is an RL78/G23 128-pin, 5.5-V, ultra-low-power 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 KB RAM, featuring capacitive touch sensing, 12-bit ADC (26 channels), and real-time clock - deployed in industrial HMI and sensor node applications.
For engineers reviewing the R7F100GSK3CFB#AA0 datasheet, R7F100GSK3CFB#AA0 pinout, R7F100GSK3CFB#AA0 application, or R7F100GSK3CFB#AA0 equivalent, key selection criteria include STOP-mode wakeup time (≤3.5 µs), SNOOZE mode sequencer support for autonomous low-power operation, and LFQFP-128 (0.5-mm pitch) package compatibility with industrial temperature range (−40 to +105°C).
Technical Context
The R7F100GSK3CFB#AA0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs at 32 MHz high-speed mode or 30.5 µs at 32.768 kHz ultra-low-speed mode). It integrates a dedicated SNOOZE mode sequencer (SMS) supporting up to 32 sequential operations without CPU activation.
Peripheral integration includes Logic and Event Link Controller (ELCL) for hardware-triggered signal routing, dual-voltage I/O (1.8/2.5/3.0 V compatible), and capacitive touch unit (CTSU2L) supporting self- and mutual-capacitance methods (up to 64 keys in 8×8 matrix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Operating Voltage | 1.6–5.5 V - enables direct interface with diverse sensors and legacy industrial rails |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention current for 4 KB RAM - extends battery life in always-on edge nodes |
| Memory | 256 KB code flash (2-KB blocks), 8 KB data flash (1M rewrite cycles), 24 KB RAM - supports field firmware updates and logging |
| ADC | 12-bit resolution, 26 input channels, internal 1.48-V reference and temperature sensor - eliminates external references for thermal monitoring |
| Capacitive Sensing | CTSU2L unit supporting 32-key self-capacitance or 64-key mutual-capacitance matrix - enables robust touch HMI without external ICs |
| Real-Time Clock | Full RTC with calendar (1 sec–99 years), alarm interrupt, and clock correction - provides accurate timekeeping without external crystal |
| Temperature Range | −40 to +105°C (industrial grade, 3C marking) - qualified for factory automation and motor control environments |
Pinout & Package
Package: LFQFP-128 (14 × 20 mm, 0.50-mm pitch), lead-free, RoHS-compliant, with exposed thermal pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 / XT1 / VBAT / EI121 | Primary crystal oscillator input / backup battery supply | Enables precise 32.768-kHz RTC operation and brownout-safe backup power path |
| P122 / X2 / EXCLK / XT2 / EXCLKS / EI122 | Crystal oscillator output / external clock input | Supports both crystal and external clock sources for flexible timing architecture |
| P30 / VCOUT0 / TSCAP / EI30 / INTP3 / RTC1HZ / SCK11 / SCL11 | Capacitive touch channel / RTC 1-Hz output / serial interface | Single pin delivers touch sensing, real-time tick output, and I²C/SPI functionality - reduces BOM count |
| P60 / EO60 / CCD04 / SCLA0 | I²C slave clock / CTSU channel / general-purpose output | Hardware-mapped I²C clock line doubles as capacitive sensing electrode - simplifies layout for touch+sensor fusion |
| P147 / ANI18 / IVCMP0 / EI147 | Analog input / comparator input / interrupt source | Direct connection to internal comparator and 12-bit ADC enables analog threshold detection with wake-on-event |
| VDD / VSS | Main power supply / ground | Dual VDD/VSS pairs with dedicated REGC decoupling pin ensure stable core and analog domain operation |
| REGC | Regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS for internal LDO stability - mandatory for reliable low-power modes |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed commands (e.g., ADC sampling, comparison, GPIO toggle) autonomously - eliminates CPU wakeups for periodic sensor polling |
| Capacitive Touch Unit (CTSU2L) | Supports mutual-capacitance 8×8 matrix (64 keys) with built-in noise rejection - enables robust touch panels in noisy industrial environments |
| Data Flash Background Operation | Allows full program execution from code flash while rewriting data flash - enables seamless over-the-air updates without system freeze |
| ELCL Hardware Routing | Configurable logic links between peripherals (e.g., timer overflow → ADC trigger → DMA transfer) - offloads CPU and reduces ISR latency |
| Multi-Voltage I/O | Ports configurable for 1.8 V, 2.5 V, or 3.0 V logic levels - simplifies interfacing with mixed-voltage sensors and transceivers |
| STOP Mode Wakeup Time | ≤3.5 µs from STOP mode via external interrupt or RTC alarm - meets sub-10-µs response requirements for safety-critical monitoring |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panels in factory settings with EMI and wide temperature swings. IC Role / Device Role / Timing Role: Main controller executing touch scanning (CTSU2L), display driving (via SAU/UART), and real-time process coordination (RTC + TAU). Use Value: Integrated 64-key mutual-capacitance support and −40 to +105°C rating eliminate external touch controllers and thermal derating margins. | Use Scenario: Battery-powered vibration/temperature monitor mounted on rotating machinery with 5-year deployment target. IC Role / Device Role / Timing Role: Low-power sensor aggregator using SMS to autonomously sample ADC every 10 s, compare thresholds, and wake only on event. Use Value: 210-nA RAM retention and 3.5-µs STOP wakeup enable multi-year operation on coin cell without external PMIC. |
| Energy Metering Interfaces | Motor Control Supervisors |
Use Scenario: Communication bridge between metrology ASIC (SPI) and smart grid concentrator (UART/LIN) in DIN-rail energy meters. IC Role / Device Role / Timing Role: Protocol translator and secure data logger using data flash BGO and LIN-bus UARTA peripheral. Use Value: Dual UARTA channels with LIN support and 1-M-cycle data flash endurance ensure reliable firmware updates and tamper-proof logging. | Use Scenario: Safety-monitoring unit for BLDC drives, checking hall sensor inputs, temperature, and fault flags before enabling gate drivers. IC Role / Device Role / Timing Role: Real-time supervisor using comparator inputs (IVCMP0/1), 12-bit ADC, and fast STOP wakeup for <100-µs fault response. Use Value: On-chip comparators with selectable internal reference and 3.5-µs wakeup meet IEC 61800-5-2 functional safety timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLK3CFB#AA0 | Same 128-pin LFQFP package, but 384 KB flash / 32 KB RAM - no change in peripheral set or power specs | Preferred where larger firmware footprint or extended data logging buffer is required | Select when future firmware expansion headroom or longer data retention duration is needed without PCB redesign |
| R7F100GMJ3CFB#AA0 | Same 128-pin LFQFP package, 192 KB flash / 20 KB RAM - identical peripheral complement and electrical specs | Optimized for cost-sensitive volume production where 256 KB flash is excessive | Choose for price-sensitive industrial controls where feature set matches but memory margin can be reduced |
Compared with R7F100GLK3CFB#AA0 and R7F100GMJ3CFB#AA0, the R7F100GSK3CFB#AA0 delivers optimal balance of memory (256 KB flash/24 KB RAM), industrial temperature rating, and integrated peripherals - making it the default choice for new designs requiring proven scalability and margin without over-provisioning.
Availability
R7F100GSK3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMIs, smart sensor nodes, energy metering interfaces, and motor control supervisors requiring stable component supply across long product lifecycles.
Supply support for R7F100GSK3CFB#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line targets cost-sensitive, ultra-low-power industrial and consumer applications requiring robust capacitive touch, rich analog integration, and long-term supply assurance - with R7F100GSK3CFB#AA0 representing its mid-tier 128-pin industrial variant.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GSK3CFB#AA0?
The R7F100GSK3CFB#AA0 operates up to 32 MHz using its high-speed on-chip oscillator (±1.0% accuracy), supported across the full 1.6–5.5 V VDD range. At 32 MHz, minimum instruction execution time is 0.03125 µs. The device also supports ultra-low-speed operation at 32.768 kHz for RTC and deep-sleep functions.
Does the R7F100GSK3CFB#AA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GSK3CFB#AA0 integrates the CTSU2L capacitive touch unit supporting both self-capacitance (up to 32 keys, single-pin per key) and mutual-capacitance (up to 64 keys in 8×8 matrix) configurations. It operates under VDD = 1.8–5.5 V and includes built-in noise cancellation for reliable operation in electrically noisy industrial environments.
What are the key low-power modes supported by the R7F100GSK3CFB#AA0, and what is the typical current draw in each?
The R7F100GSK3CFB#AA0 supports HALT, STOP, and SNOOZE modes. Typical current draws are: 41 µA/MHz in active mode; ≤0.5 µA in STOP mode (with RAM retention); and 210 nA for 4 KB RAM data retention. SNOOZE mode enables peripheral-driven autonomous operation with sub-µA average current during periodic sensor polling.
Can the R7F100GSK3CFB#AA0 perform background data flash writes while executing code from main flash memory?
Yes, the R7F100GSK3CFB#AA0 supports Background Operation (BGO) for its 8 KB data flash memory. This allows the CPU to execute instructions from code flash while simultaneously erasing or programming data flash - enabling seamless firmware updates and data logging without system interruption.
What is the pin configuration and package type of the R7F100GSK3CFB#AA0, and are there any critical layout requirements?
The R7F100GSK3CFB#AA0 uses a 128-pin LFQFP package (14 × 20 mm, 0.50-mm pitch) with exposed thermal pad. Critical layout requirements include connecting the REGC pin to VSS via a 0.47–1 µF ceramic capacitor, using separate analog/digital ground planes, and routing crystal traces (X1/X2) short and symmetric with guard rings to ensure stable RTC and high-speed oscillator operation.
R7F100GSK3CFB#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:
- 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#AA0 FAQ
1.How can I place an order for R7F100GSK3CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSK3CFB#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 R7F100GSK3CFB#AA0 reliable?
The price and inventory of R7F100GSK3CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSK3CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSK3CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSK3CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSK3CFB#AA0?
R7F100GSK3CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSK3CFB#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 R7F100GSK3CFB#AA0?
For technical support, including R7F100GSK3CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSK3CFB#AA0 requirements.
6.How does Aetrix verify that R7F100GSK3CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSK3CFB#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 R7F100GSK3CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSK3CFB#AA0?
All R7F100GSK3CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSK3CFB#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 R7F100GSK3CFB#AA0 part is unused and in its original packaging.
Return procedure for R7F100GSK3CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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