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Renesas R7F100GSK3CFB#BA0
- Part No.:
- R7F100GSK3CFB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSK3CFB#BA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:576
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Product details
Overview
R7F100GSK3CFB#BA0 from Renesas is a 128-pin, industrial-grade RL78/G23 16-bit microcontroller featuring 256 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V with true low-power operation (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (CTSU2L), and dual-clock domain support for real-time clock and ultra-low-power SNOOZE mode sequencing in smart sensor and HMI applications.
For engineers reviewing the R7F100GSK3CFB#BA0 datasheet, R7F100GSK3CFB#BA0 pinout, R7F100GSK3CFB#BA0 application, or R7F100GSK3CFB#BA0 equivalent, key selection criteria include its 128-pin LFQFP package, -40 to +105°C industrial temperature rating, 256 KB flash/24 KB RAM configuration, CTSU2L capacitive sensing capability, and SNOOZE mode sequencer for autonomous peripheral control without CPU wake-up.
Technical Context
The R7F100GSK3CFB#BA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates a dedicated SNOOZE mode sequencer (SMS) capable of executing up to 32 sequential commands across 21 instruction types-enabling autonomous analog measurement, comparison, and conditional branching while the CPU, flash, and RAM remain powered down.
Its peripheral set includes a 12-bit A/D converter (up to 26 channels), dual 8-bit D/A outputs, two comparators with selectable internal/external reference, 16-bit timer array (TAU) with up to 16 channels, RTC with alarm and correction, and flexible serial interfaces: up to 10 I²C/Simplified I²C channels, 6 UARTA/LIN-capable channels, and 8 CSI (SPI-compatible) channels-all configurable via peripheral I/O redirection register (PIOR) for pin multiplexing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low interrupt latency for real-time control. |
| Flash / RAM | 256 KB code flash (2 KB block size), 8 KB data flash (1M rewrite cycles), 24 KB RAM; supports secure boot swapping and background operation. |
| Power Performance | 41 µA/MHz active current, 210 nA data retention (4 KB RAM); enables battery-powered operation for >10 years in sleep-dominated use cases. |
| Operating Voltage | 1.6–5.5 V single supply; allows direct interface with 1.8 V, 2.5 V, and 3.3 V logic without level shifters. |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual capacitance (8×8 matrix = 64 keys); operates at full VDD range (1.8–5.5 V). |
| Temperature Range | -40 to +105°C (industrial grade, "3C" marking); qualified for motor drives, industrial HMIs, and building automation edge nodes. |
| Clock Sources | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz), middle-speed (1–4 MHz), and low-speed 32.768 kHz oscillator; eliminates external crystal cost and board space. |
Pinout & Package
Package: 128-pin LFQFP (14 × 20 mm, 0.50-mm pitch), lead-free, RoHS-compliant, industrial temperature grade (3C). Pin count and footprint match PLQP0128KD-A mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 / VBAT / EI121 | Primary crystal input / backup battery supply | Accepts 32.768 kHz crystal for RTC; VBAT pin enables RTC operation during main power loss. |
| P122 / X2 / EXCLK / EI122 | Secondary crystal input / external clock input | Supports high-frequency crystal (up to 20 MHz) or buffered external clock for precise system timing. |
| P30 / TSCAP / RTC1HZ / EI30 | Capacitive touch sense input / RTC output | Dedicated pin for CTSU2L charge transfer; also outputs 1 Hz RTC signal for low-power timekeeping verification. |
| P60 / SCLA0 / CCD04 / EO60 | I²C clock line / CTSU electrode / general-purpose output | Shared function enables hardware-accelerated I²C communication or capacitive sensing electrode drive without GPIO overhead. |
| P147 / ANI18 / IVCMP0 / EI147 | Analog input / comparator input / interrupt source | Connects to internal voltage comparator Channel 0; supports threshold detection with wake-on-event from STOP mode. |
| VDD / VSS | Main power supply / ground | Multiple VDD/VSS pairs ensure stable core and I/O rail decoupling; REGC capacitor required for internal regulator stability. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step command sequences autonomously-measuring ADC values, comparing against thresholds, and triggering actions-without CPU involvement or RAM/flash activation. |
| Capacitive Touch Unit (CTSU2L) | Single-pin self-capacitance or 8×8 mutual-capacitance matrix support; immune to VDD variation and ambient noise; requires no external components. |
| Data Flash Background Operation | Enables code execution from program memory while rewriting 8 KB data flash-critical for over-the-air firmware updates and parameter logging. |
| Peripheral I/O Redirection (PIOR) | Allows dynamic remapping of up to 128 peripheral functions to alternate pins-simplifying PCB layout and enabling last-minute design changes without netlist revision. |
| ELCL Event Link Controller | Configurable logic circuit routes event signals between peripherals (e.g., ADC end-of-conversion → DMA trigger → UART transmit start), eliminating CPU polling and software overhead. |
Applications
| Smart Thermostats | Industrial Motor Drives |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main system MCU managing touch UI, sensor acquisition, PID loop execution, and communication stack. Use Value: CTSU2L enables robust touch performance across 1.8–5.5 V supply range; SNOOZE mode reduces average current to <1 µA during display-off periods. | Use Scenario: Compact BLDC motor driver with hall-effect feedback, current sensing, and field-oriented control. IC Role / Device Role / Timing Role: Real-time motion controller coordinating PWM generation, ADC sampling, and fault protection logic. Use Value: 16-bit TAU timers deliver precise 100 ns PWM resolution; 12-bit ADC with hardware averaging ensures accurate current measurement under EMI. |
| Building Automation Sensors | Medical Patient Monitors |
Use Scenario: Battery-powered CO₂ and VOC sensor node transmitting data via LoRaWAN every 5 minutes. IC Role / Device Role / Timing Role: Low-power sensor hub acquiring analog inputs, running calibration algorithms, and managing radio duty cycling. Use Value: 210 nA data retention preserves configuration and calibration data for >10 years on coin cell; RTC alarm wakes system precisely for scheduled measurements. | Use Scenario: Portable pulse oximeter with optical front-end, OLED display, and USB charging interface. IC Role / Device Role / Timing Role: Signal processor handling photodiode ADC sampling, SpO₂ calculation, and display refresh. Use Value: Dual 8-bit DACs drive LED current sources with real-time output; comparator channels monitor battery voltage and detect probe disconnection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLK3CFB#BA0 | Same 128-pin LFQFP package, identical peripherals, but 384 KB flash / 32 KB RAM; higher memory density. | Preferred when firmware complexity exceeds 256 KB or larger data buffers (e.g., audio buffering, extended logging) are required. | Select R7F100GLK3CFB#BA0 only if additional flash/RAM headroom justifies cost premium; otherwise R7F100GSK3CFB#BA0 optimizes BOM cost for mid-size applications. |
| R7F100GMJ3CFB#BA0 | Same 128-pin LFQFP, 256 KB flash / 24 KB RAM, but rated for -40 to +85°C (consumer grade, "2D") instead of industrial +105°C. | Suitable for indoor consumer devices where ambient temperature remains below 85°C; not qualified for factory-floor or automotive under-hood use. | Choose R7F100GMJ3CFB#BA0 only for cost-sensitive consumer designs with verified thermal margins; R7F100GSK3CFB#BA0 is mandatory for industrial thermal environments. |
Compared with R7F100GLK3CFB#BA0 and R7F100GMJ3CFB#BA0, the R7F100GSK3CFB#BA0 delivers optimal balance of industrial temperature qualification, sufficient memory for complex HMI and sensor fusion, and lowest unit cost among 128-pin RL78/G23 variants-making it the default choice for production-grade industrial edge nodes.
Availability
R7F100GSK3CFB#BA0 is available at Aetrix Electronics and suitable for industrial motor control, smart building sensors, medical wearable devices, and HMI panels requiring stable component supply across multi-year production cycles.
Supply support for R7F100GSK3CFB#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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G23 product line is engineered for ultra-low-power, cost-sensitive industrial and consumer applications-integrating capacitive touch, real-time control, and secure firmware update capabilities into a single compact MCU platform.
FAQ
What is the maximum operating frequency and instruction timing of the R7F100GSK3CFB#BA0?
The R7F100GSK3CFB#BA0 features a high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -40 to +105°C, supporting up to 32 MHz operation. At 32 MHz, the minimum instruction execution time is 0.03125 µs. The RL78 CPU core uses a 3-stage pipeline and supports variable-speed operation-including ultra-low-speed mode at 32.768 kHz with 30.5 µs per instruction-enabling precise trade-offs between performance and power.
Does the R7F100GSK3CFB#BA0 support capacitive touch sensing, and what configurations are available?
Yes, the R7F100GSK3CFB#BA0 integrates the CTSU2L capacitive touch sensing unit. It supports both self-capacitance mode (up to 32 independent keys using one pin per key) and mutual capacitance matrix mode (8 × 8 = 64 keys). Operation is guaranteed across the full VDD range of 1.8–5.5 V, and no external components are required-reducing BOM cost and PCB area versus discrete touch controllers.
What are the key low-power modes supported by the R7F100GSK3CFB#BA0, and how does SNOOZE mode differ from STOP mode?
The R7F100GSK3CFB#BA0 supports HALT, STOP, and SNOOZE modes. STOP mode achieves 210 nA data retention (4 KB RAM) but requires CPU wake-up for any processing. SNOOZE mode uniquely enables autonomous peripheral operation-such as ADC sampling, value comparison, and conditional branching-via the dedicated SNOOZE mode sequencer (SMS) while keeping the CPU, flash, and RAM fully powered down, achieving sub-µA average current in sensor polling applications.
Can the R7F100GSK3CFB#BA0 perform background data flash writes while executing code from program memory?
Yes, the R7F100GSK3CFB#BA0 supports Background Operation (BGO) for its 8 KB data flash memory. This allows the CPU to execute instructions from code flash while simultaneously rewriting data flash-enabling seamless firmware updates, secure parameter storage, and real-time logging without interrupting real-time tasks or introducing latency spikes.
What is the pin compatibility status of the R7F100GSK3CFB#BA0 within the RL78/G23 family?
The R7F100GSK3CFB#BA0 uses a 128-pin LFQFP package (PLQP0128KD-A) and shares identical pinout and electrical characteristics with all other 128-pin RL78/G23 variants-including R7F100GSJ3CFB#BA0, R7F100GSL3CFB#BA0, and R7F100GSN3CFB#BA0. This enables drop-in replacement across flash/RAM configurations and temperature grades without PCB redesign.
R7F100GSK3CFB#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:
- 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#BA0 FAQ
1.How can I place an order for R7F100GSK3CFB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSK3CFB#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 R7F100GSK3CFB#BA0 reliable?
The price and inventory of R7F100GSK3CFB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSK3CFB#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSK3CFB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSK3CFB#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSK3CFB#BA0?
R7F100GSK3CFB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSK3CFB#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 R7F100GSK3CFB#BA0?
For technical support, including R7F100GSK3CFB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSK3CFB#BA0 requirements.
6.How does Aetrix verify that R7F100GSK3CFB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSK3CFB#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 R7F100GSK3CFB#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSK3CFB#BA0?
All R7F100GSK3CFB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSK3CFB#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 R7F100GSK3CFB#BA0 part is unused and in its original packaging.
Return procedure for R7F100GSK3CFB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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