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Renesas R7F100GSJ3CFB#AA0
- Part No.:
- R7F100GSJ3CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSJ3CFB#AA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:432
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Product details
Overview
R7F100GSJ3CFB#AA0 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 ultra-low power consumption (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (up to 64 keys), and dual-clock domain operation for battery-powered industrial HMI and sensor node applications.
For engineers reviewing the R7F100GSJ3CFB#AA0 datasheet, R7F100GSJ3CFB#AA0 pinout, R7F100GSJ3CFB#AA0 application, or R7F100GSJ3CFB#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 R7F100GSJ3CFB#AA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its SNOOZE mode sequencer executes up to 32 predefined commands-including ADC sampling, comparator comparison, and CTSU2L scan-without CPU wake-up, enabling microamp-level background sensing.
Peripheral integration includes 16-bit TAU timers (12 channels), RTC with alarm and correction, 12-bit ADC (26 channels), 8-bit DAC (2 channels), 2-channel comparator with selectable internal/external reference, and flexible serial interfaces: up to 10 I²C/Simplified I²C, 6 UART/UARTA (LIN-capable), and 8 CSI/SPI channels-all configurable via peripheral I/O redirection register (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at ultra-low power |
| Flash Memory | 256 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles for firmware updates and logging |
| RAM | 24 KB on-chip RAM; retains full 4 KB at 210 nA in STOP mode for state preservation |
| Operating Voltage | 1.6–5.5 V single supply; eliminates need for external voltage regulators in multi-rail systems |
| Temperature Range | -40°C to +105°C (industrial grade); qualified for harsh environments without derating |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual capacitance (8×8 matrix, 64 keys); no external components required |
| Low-Power Modes | HALT, STOP, and SNOOZE modes; SNOOZE enables autonomous analog processing without CPU involvement |
Pinout & Package
Package: LFQFP-128, 14 × 20 mm, 0.50-mm pitch, exposed pad (recommended to connect to VSS). Pin count confirmed as 128 per Renesas ordering table and pin configuration diagrams.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / P122 | Crystal oscillator input/output | Supports 32.768 kHz crystal (RTC) and 1–20 MHz crystal (main clock); enables precise timing and low-jitter system clock |
| P30 / P31 / P70–P73 | Capacitive touch sense pins | Dedicated CTSU2L channels for self/mutual capacitance sensing; enable robust touch HMI with noise immunity |
| P60 / P61 / P62 | I²C interface (SCLA0/SDAA0/CCD06) | Hardware I²C master/slave with clock stretching support; suitable for sensor hub and EEPROM communication |
| P10–P17 | Serial array unit (SAU) channels | Configurable as UART, CSI, or I²C; provides up to 6 UARTA channels with LIN bus support for automotive diagnostics |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS; stabilizes internal LDO for consistent analog performance |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step sequences of ADC, comparator, CTSU2L, and timer operations autonomously-reducing average current by >90% vs. polling-based wakeups |
| Capacitive Touch Unit (CTSU2L) | Hardware-accelerated touch engine supporting mutual capacitance matrix (8×8) with built-in noise cancellation-enables reliable touch buttons/sliders without firmware overhead |
| Data Flash Background Operation (BGO) | Permits concurrent code execution from flash while rewriting data flash-enables seamless field firmware updates and parameter logging |
| Peripheral I/O Redirection (PIOR) | Allows dynamic remapping of up to 16 peripheral functions to alternate pins-simplifies PCB layout and enables pin reuse across variants |
| High-Accuracy On-Chip Oscillators | ±1.0% accuracy (1.8–5.5 V, -20–+85°C) for 32/24/16 MHz options-eliminates external crystal for cost-sensitive applications |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: A wall-mounted HVAC controller with 12-button capacitive keypad and LCD backlight dimming. IC Role / Device Role / Timing Role: R7F100GSJ3CFB#AA0 serves as main HMI controller, executing CTSU2L scans, driving PWM for backlight, and managing UART communication with HVAC core. Use Value: SNOOZE mode reduces average current to <5 µA during idle touch monitoring, extending battery life beyond 5 years on two AA cells. | Use Scenario: Wireless vibration sensor node mounted on motor housing, sampling accelerometer data every 10 seconds and transmitting via UART to gateway. IC Role / Device Role / Timing Role: R7F100GSJ3CFB#AA0 acts as sensor aggregator and low-power scheduler, using RTC alarm and SMS to trigger ADC acquisition and UART burst transmission. Use Value: STOP mode with 210 nA RAM retention preserves calibration and state across deep sleep, enabling rapid wake-and-measure (<10 µs) without reinitialization. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter with Tamper Detection |
Use Scenario: DIN-rail mounted digital I/O expansion module with 8 isolated inputs and 8 relay outputs, communicating via RS-485. IC Role / Device Role / Timing Role: R7F100GSJ3CFB#AA0 manages opto-isolator interface logic, relay timing, and Modbus RTU over UARTA with hardware parity generation. Use Value: 12-bit ADC and comparator channels monitor supply rail and isolation status; voltage detectors (LVD0/LVD1) provide fail-safe shutdown before brownout. | Use Scenario: ANSI C12.20-compliant electricity meter requiring magnetic tamper detection, temperature compensation, and secure parameter storage. IC Role / Device Role / Timing Role: R7F100GSJ3CFB#AA0 performs real-time energy calculation, reads internal temperature sensor, monitors Hall-effect sensor inputs, and secures calibration data in protected data flash. Use Value: On-chip 1.48 V reference and temperature sensor eliminate external components; flash security prevents unauthorized access to tariff tables and metrology constants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLJ3CFB#AA0 | 64-pin LFQFP, 256 KB flash, 24 KB RAM, same core/peripherals but fewer I/O (52 vs. 112 GPIO), no CTSU2L | Targeted at space-constrained control modules without touch interface | Select when pin count and capacitive sensing are not required; reduces PCB area and BOM cost |
| R7F100GSN3CFB#AA0 | Same 128-pin LFQFP package, 768 KB flash, 48 KB RAM, identical peripheral set and temperature grade | Required for larger firmware images or extended data logging buffers | Select when application demands >256 KB code space or >24 KB RAM-no layout change needed |
Compared with R7F100GLJ3CFB#AA0, the R7F100GSJ3CFB#AA0 provides 64 additional GPIO and integrated CTSU2L for touch HMI, while R7F100GSN3CFB#AA0 offers scalable memory headroom within identical mechanical and thermal constraints.
Availability
R7F100GSJ3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, PLC I/O modules, and energy meters requiring stable component supply across long product lifecycles.
Supply support for R7F100GSJ3CFB#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.
The RL78/G23 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial control and human-machine interface applications.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GSJ3CFB#AA0?
The R7F100GSJ3CFB#AA0 operates up to 32 MHz using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6–5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs. The device maintains full peripheral functionality-including ADC, CTSU2L, and UART-at all supported voltages and frequencies without derating.
Does the R7F100GSJ3CFB#AA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GSJ3CFB#AA0 integrates the CTSU2L capacitive touch sensing unit supporting both self-capacitance (up to 32 independent keys) and mutual capacitance (8×8 matrix, up to 64 keys). It requires no external components, features built-in noise cancellation, and operates under VDD = 1.8–5.5 V. All CTSU2L channels are accessible on dedicated pins including P30, P31, and P70–P73.
How does the SNOOZE mode sequencer (SMS) in the R7F100GSJ3CFB#AA0 reduce system power consumption?
The SNOOZE mode sequencer in the R7F100GSJ3CFB#AA0 executes up to 32 pre-programmed commands-including ADC conversions, comparator comparisons, CTSU2L scans, and timer operations-without waking the CPU, flash, or RAM. This enables autonomous background sensing at microamp-level currents, reducing average power by >90% compared to periodic wake-and-scan approaches in applications like touch HMI or sensor polling.
What are the data flash endurance and background operation capabilities of the R7F100GSJ3CFB#AA0?
The R7F100GSJ3CFB#AA0 provides 8 KB of data flash rated for 1,000,000 write/erase cycles (typical). It supports Background Operation (BGO), allowing the CPU to execute instructions from program memory while simultaneously rewriting data flash-enabling seamless firmware updates, secure parameter storage, and real-time logging without interrupting application flow.
Which communication interfaces are available on the R7F100GSJ3CFB#AA0, and how many instances does it support?
The R7F100GSJ3CFB#AA0 supports up to 10 I²C/Simplified I²C channels, 6 UART/UARTA channels (with LIN bus support), and 8 CSI/SPI channels. All interfaces are implemented in the Serial Array Unit (SAU) and Serial Interface (SCI) peripherals, with flexible pin assignment via the Peripheral I/O Redirection Register (PIOR) to optimize PCB routing and multiplexing.
R7F100GSJ3CFB#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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K 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:
R7F100GSJ3CFB#AA0 FAQ
1.How can I place an order for R7F100GSJ3CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSJ3CFB#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 R7F100GSJ3CFB#AA0 reliable?
The price and inventory of R7F100GSJ3CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSJ3CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSJ3CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSJ3CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSJ3CFB#AA0?
R7F100GSJ3CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSJ3CFB#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 R7F100GSJ3CFB#AA0?
For technical support, including R7F100GSJ3CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSJ3CFB#AA0 requirements.
6.How does Aetrix verify that R7F100GSJ3CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSJ3CFB#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 R7F100GSJ3CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSJ3CFB#AA0?
All R7F100GSJ3CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSJ3CFB#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 R7F100GSJ3CFB#AA0 part is unused and in its original packaging.
Return procedure for R7F100GSJ3CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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