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Renesas R7F100GSJ2DFB#BA0
- Part No.:
- R7F100GSJ2DFB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSJ2DFB#BA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:576
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Product details
Overview
R7F100GSJ2DFB#BA0 from Renesas is a 128-pin, 5.5-V tolerant RL78/G23 16-bit MCU with 192 KB code flash, 20 KB RAM, and integrated capacitive touch sensing (CTSU2L), designed for ultra-low-power industrial control applications operating from −40°C to +85°C.
For engineers reviewing the R7F100GSJ2DFB#BA0 datasheet, R7F100GSJ2DFB#BA0 pinout, R7F100GSJ2DFB#BA0 application, or R7F100GSJ2DFB#BA0 equivalent, key selection criteria include its 210-nA data retention current, 41-µA/MHz active power, 12-bit ADC with 26 channels, SNOOZE mode sequencer for autonomous sensor polling, and LFQFP-128 (0.5 mm pitch) package compatibility with industrial PCB layouts.
Technical Context
The R7F100GSJ2DFB#BA0 implements the RL78 CPU core with CISC architecture and 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). It integrates a 21-command SNOOZE mode sequencer (SMS) that executes up to 32 sequential operations without CPU wake-up, enabling battery-powered sensor nodes to maintain sub-µA average current.
Its peripheral set includes dual 16-bit timer arrays (TAU) with 16 channels, one 32-bit interval timer, real-time clock (RTC) with alarm and correction, 2-channel 8-bit DAC, 2-channel comparator with selectable internal/external reference, and 4–10 I²C/Simplified I²C channels - all configurable via peripheral I/O redirection register (PIOR) for flexible pin assignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing for real-time control loops. |
| Operating Voltage | 1.6 V to 5.5 V; supports direct interface with 3.3 V and 5 V logic without level shifters. |
| Power Consumption | 41 µA/MHz active current; reduces thermal load and extends battery life in portable equipment. |
| Data Retention | 210 nA at 4 KB RAM retention; maintains critical state during deep sleep without external backup power. |
| Memory | 192 KB code flash / 8 KB data flash / 20 KB RAM; sufficient for complex firmware with field-upgradable data logging. |
| ADC Resolution | 8-/10-/12-bit selectable; allows trade-off between speed and precision for analog sensor interfaces. |
| Capacitive Sensing | CTSU2L unit supporting 32 self-capacitance keys or 64 mutual-capacitance keys; eliminates mechanical buttons in HMI designs. |
| Temperature Range | −40°C to +85°C; qualified for industrial environments including factory automation and building controls. |
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 for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 | X1/XT1/VBAT/EI121 | Primary crystal oscillator input; supports 32.768 kHz RTC crystal; VBAT enables RTC operation during main power loss. |
| P122 | X2/EXCLK/EI122 | Crystal output or external clock input; enables precise timing synchronization across distributed systems. |
| P30 | TSCAP/RTC1HZ/EI30 | Capacitive touch sense input with dedicated charge-transfer circuitry; RTC1HZ provides accurate 1-Hz interrupt for timekeeping. |
| P60–P62 | SCLA0/SDAA0/CCD06 | I²C bus pins with slew-rate control; CCD06 supports additional capacitive sensing channel for extended HMI. |
| P147 | ANI18/IVCMP0/EI147 | Analog input for internal voltage comparator; enables overvoltage/undervoltage detection on critical rails. |
| REGC | Regulator bypass capacitor terminal | Must connect 0.47–1 µF capacitor to VSS; stabilizes internal LDO for low-noise analog performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | Enables sub-µA system sleep with fast wakeup (<;10 µs) for event-driven operation in energy-constrained devices. |
| SNOOZE mode sequencer (SMS) | Executes 32-step autonomous sequences (e.g., ADC sampling → compare → GPIO toggle) without CPU involvement, cutting active time by >90%. |
| Background data flash rewrite | Permits firmware updates or parameter storage while executing application code from program memory - no interruption to real-time tasks. |
| Peripheral I/O redirection (PIOR) | Allows dynamic remapping of UART, I²C, and timer outputs to alternate pins - simplifies PCB layout and avoids signal congestion. |
| Capacitive touch with noise immunity | CTSU2L includes spread-spectrum modulation and digital filtering to reject 50/60 Hz noise and ESD transients in industrial settings. |
| On-chip debugging support | Fully compatible with Renesas E2 emulator; enables non-intrusive trace, breakpoint, and memory inspection without external probes. |
Applications
| Industrial Sensor Node | Smart Thermostat HMI |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node deployed in HVAC ducts with 10-year lifespan requirement. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, wireless transmission scheduling, and ultra-deep sleep coordination. Use Value: 210-nA data retention and SNOOZE sequencer reduce average current to <;1 µA, enabling coin-cell operation for >10 years. | Use Scenario: Wall-mounted thermostat with touch slider, ambient light sensing, and local display control. IC Role / Device Role / Timing Role: Single-chip HMI processor handling capacitive touch decoding, ADC-based light sensing, and SPI-driven segment LCD. Use Value: Integrated CTSU2L supports 32-key self-capacitance layout with no external RC components, reducing BOM cost and board space by 35%. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter Front-End |
Use Scenario: DIN-rail mounted I/O expansion module with 8 isolated digital inputs and 4 relay outputs. IC Role / Device Role / Timing Role: Real-time I/O manager interfacing with optocouplers, driving relay drivers, and communicating via RS-485. Use Value: 16-channel TAU timers provide precise pulse-width modulation for solid-state relay control and input debouncing with hardware filtering. | Use Scenario: Residential smart meter measuring voltage, current, and power factor using shunt/transformer sensors. IC Role / Device Role / Timing Role: Analog front-end controller performing synchronized 12-bit ADC sampling, RMS calculation, and tamper detection. Use Value: 26-channel ADC with internal 1.48 V reference enables simultaneous sampling of 6-phase voltage/current pairs without external references or calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GSL2DFB#BA0 | Same package and pinout; 32 KB RAM (vs. 20 KB), 384 KB flash (vs. 192 KB); identical peripherals and power specs. | Required when firmware exceeds 192 KB or requires >20 KB RAM for buffering or RTOS heap. | Select if future firmware growth or multi-threaded operation demands larger memory footprint. |
| R7F100GMJ2DFB#BA0 | 80-pin LFQFP (12 × 12 mm); 192 KB flash / 20 KB RAM; same core/peripherals but fewer I/O (64 vs. 120 pins) and no CTSU2L. | Suitable for space-constrained designs where capacitive touch is not needed and I/O count ≤64 suffices. | Choose for compact industrial controllers where HMI is button-based and board area is premium. |
Compared with R7F100GSL2DFB#BA0, the R7F100GSJ2DFB#BA0 trades memory headroom for identical I/O count and CTSU2L support; versus R7F100GMJ2DFB#BA0, it delivers full 128-pin expandability and integrated touch sensing at the cost of larger footprint - making it optimal for feature-rich industrial HMIs.
Availability
R7F100GSJ2DFB#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, PLC I/O modules, and energy meter front-ends requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R7F100GSJ2DFB#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 Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line targets ultra-low-power industrial and consumer control applications, emphasizing energy efficiency, integrated analog peripherals, and simplified development through scalable memory and pin-compatible variants.
FAQ
What is the maximum operating frequency of the R7F100GSJ2DFB#BA0?
The R7F100GSJ2DFB#BA0 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.03125 µs. The device also supports ultra-low-speed operation at 32.768 kHz for RTC and low-power monitoring, with corresponding 30.5 µs instruction time.
Does the R7F100GSJ2DFB#BA0 support in-system programming (ISP)?
Yes, the R7F100GSJ2DFB#BA0 supports in-system programming via its on-chip debug interface. It enables full flash programming, erasure, and verification without removing the device from the target board, using standard Renesas E2 or E2 Lite debuggers and the CS+ or e2 studio IDE.
How many capacitive touch channels does the R7F100GSJ2DFB#BA0 support?
The R7F100GSJ2DFB#BA0 integrates the CTSU2L capacitive touch sensing unit, supporting up to 32 self-capacitance keys (single-pin per key) or 64 mutual-capacitance keys (8 × 8 matrix). All channels operate within the specified VDD range of 1.8–5.5 V and include built-in noise cancellation.
What is the purpose of the REGC pin on the R7F100GSJ2DFB#BA0?
The REGC pin on the R7F100GSJ2DFB#BA0 is the bypass capacitor terminal for the internal voltage regulator. It must be connected to VSS via a 0.47–1 µF ceramic capacitor to stabilize the LDO output, ensuring low-noise operation of analog peripherals like the ADC, DAC, and comparators.
Can the R7F100GSJ2DFB#BA0 operate from a 1.8 V supply?
Yes, the R7F100GSJ2DFB#BA0 operates across a 1.6 V to 5.5 V supply range. At 1.8 V, it supports all core functions including the 12-bit ADC (with reduced accuracy specification), CTSU2L (in self-capacitance mode only), and real-time clock - making it suitable for single-cell Li-ion or two-cell alkaline battery systems.
R7F100GSJ2DFB#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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 26x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GSJ2DFB#BA0 FAQ
1.How can I place an order for R7F100GSJ2DFB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSJ2DFB#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 R7F100GSJ2DFB#BA0 reliable?
The price and inventory of R7F100GSJ2DFB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSJ2DFB#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSJ2DFB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSJ2DFB#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSJ2DFB#BA0?
R7F100GSJ2DFB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSJ2DFB#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 R7F100GSJ2DFB#BA0?
For technical support, including R7F100GSJ2DFB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSJ2DFB#BA0 requirements.
6.How does Aetrix verify that R7F100GSJ2DFB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSJ2DFB#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 R7F100GSJ2DFB#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSJ2DFB#BA0?
All R7F100GSJ2DFB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSJ2DFB#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 R7F100GSJ2DFB#BA0 part is unused and in its original packaging.
Return procedure for R7F100GSJ2DFB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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