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Renesas R7F100GMJ3CFA#BA0
- Part No.:
- R7F100GMJ3CFA#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7F100GMJ3CFA#BA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R7F100GMJ3CFA#BA0 from Renesas is an RL78/G23 80-pin industrial-grade 16-bit MCU with 256 KB code flash, 8 KB data flash, 24 KB RAM, 1.6–5.5 V operation, and integrated capacitive touch sensing unit (CTSU2L). It delivers ultra-low power consumption (41 µA/MHz active, 210 nA data retention), supports SNOOZE mode for autonomous peripheral sequencing, and targets battery-powered HMI, sensor nodes, and industrial control panels.
For engineers reviewing the R7F100GMJ3CFA#BA0 datasheet, R7F100GMJ3CFA#BA0 pinout, R7F100GMJ3CFA#BA0 application, or R7F100GMJ3CFA#BA0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package, -40 to +105°C temperature grade, 256 KB flash/24 KB RAM memory configuration, CTSU2L support for up to 64 keys in mutual-capacitance mode, and hardware-accelerated SNOOZE sequencer for low-power sensor polling without CPU wake-up.
Technical Context
The R7F100GMJ3CFA#BA0 implements the RL78 CPU core with a 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 (SMS) executes up to 32 preconfigured commands-including timer triggers, ADC conversions, and CTSU scans-without CPU, RAM, or flash activation.
Peripheral integration includes 16-bit TAU timers (12 channels), RTC with alarm and correction, 12-bit ADC (up to 26 channels), dual 8-bit DACs, 2 comparators with selectable reference sources, and flexible serial interfaces: up to 10 I²C/Simplified I²C channels, 6 UARTA/LIN channels, and 8 CSI/SPI channels-all configurable via peripheral I/O redirection register (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and low-code-footprint firmware. |
| Flash/RAM Capacity | 256 KB code flash + 8 KB data flash + 24 KB RAM; sufficient for complex sensor fusion, LIN communication stacks, and CTSU firmware. |
| Operating Voltage | 1.6–5.5 V single supply; supports direct connection to Li-ion, 3.3 V, or 5 V rails without external regulators. |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention; enables multi-year battery life in STOP mode with RAM retention. |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix = 64 keys); no external components required. |
| Temperature Range | -40 to +105°C (industrial grade, "3C" field code); qualified for factory automation, motor drives, and HVAC control environments. |
| Package & Pin Count | 80-pin LQFP, 0.65-mm pitch (PLQP0080JA-B); compatible with standard reflow processes and manual inspection. |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / P122 | Crystal oscillator input/output | Supports 32.768 kHz crystal for RTC accuracy or 1–20 MHz crystals for main system clock; internal oscillators eliminate need for external timing components in cost-sensitive designs. |
| P30 / P31 / P50 / P51 / P60–P62 / P70–P73 | CTSU2L electrode inputs | Enable mutual-capacitance touch matrix (e.g., 8×8 grid) or self-capacitance keys; dedicated analog front-end with noise immunity and automatic calibration. |
| P10–P17 / P20–P26 / P00–P01 | Multiplexed GPIO/ADC/DAC/UART/I²C | Configurable per PIOR register; allows dynamic remapping of peripherals to optimize PCB layout and avoid signal congestion. |
| RESET / REGC / VDD / VSS | Power and reset management | REGC requires 0.47–1 µF capacitor to VSS for stable internal regulator output; RESET pin supports both external push-button and internal voltage detector (LVD0/LVD1) assertion. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step autonomous sequences (ADC reads, CTSU scans, timer waits) without CPU wake-up-reducing average system power by >90% in periodic sensing applications. |
| Background Data Flash Programming | Enables over-the-air firmware updates while executing application code from program flash; supports boot swapping and flash shield window for secure field upgrades. |
| Capacitive Touch Sensing Unit (CTSU2L) | Hardware-accelerated touch controller with built-in noise rejection, auto-calibration, and support for both self- and mutual-capacitance topologies-eliminates need for external touch ICs. |
| ELCL Event Link Controller | Configurable logic circuit routes events between peripherals (e.g., ADC end-of-conversion → DMA trigger → UART transmit start) without CPU intervention-enabling deterministic low-latency signal chains. |
| Real-Time Clock with Correction | RTC maintains ±1 ppm accuracy over -40 to +105°C using programmable clock correction registers; supports calendar, alarm, and 1 Hz interrupt output for time-stamped logging. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted displays with backlight dimming, button feedback, and status LEDs. IC Role / Device Role / Timing Role: Main controller managing CTSU2L touch scan, PWM-driven LED/buzzer outputs, UART communication with PLC, and RTC-based event logging. Use Value: Integrated CTSU2L eliminates external touch controller; SNOOZE mode reduces average current to <1 µA during idle touch monitoring-extending panel battery life to >5 years. | Use Scenario: Wireless environmental sensor node measuring temperature, humidity, and vibration in factory machinery enclosures. IC Role / Device Role / Timing Role: Sensor aggregator performing ADC conversions, CTSU-based tamper detection, LIN bus reporting, and RTC-scheduled wake-up every 30 seconds. Use Value: 210 nA data retention current preserves sensor state across multi-week power outages; hardware ELCL links ADC EOC to DMA to UART-minimizing CPU involvement and energy use. |
| Motor Control Interfaces | Building Automation Controllers |
Use Scenario: Compact BLDC motor driver board requiring fault monitoring, current sensing, and CAN/LIN communication to central HVAC controller. IC Role / Device Role / Timing Role: Secondary controller handling analog current/voltage monitoring (12-bit ADC), overtemperature shutdown (comparator + CTSU thermal pad), and LIN protocol stack. Use Value: Dual 8-bit DACs generate precise reference voltages for current-sense amplifiers; comparator low-speed mode draws only 1.2 µA-ideal for always-on fault detection. | Use Scenario: DIN-rail mounted lighting and shade controller with occupancy sensing, daylight harvesting, and DALI/KNX gateway functions. IC Role / Device Role / Timing Role: System manager coordinating CTSU-based occupancy detection, 12-bit ADC for ambient light measurement, RTC-triggered schedule execution, and UART-to-DALI bridge. Use Value: 256 KB flash accommodates DALI stack + application logic; 24 KB RAM supports multiple concurrent communication buffers; -40 to +105°C rating ensures reliability inside electrical cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLJ3CFA#BA0 | Same 80-pin LQFP package, identical peripherals, but 512 KB flash / 48 KB RAM; higher memory density increases BOM cost and code footprint overhead. | Better suited for applications requiring full RTOS, OTA update partitions, or large GUI assets-over-provisioned for simple sensor/HMI tasks. | Select R7F100GLJ3CFA#BA0 only if firmware exceeds 256 KB or requires >24 KB runtime RAM; otherwise, R7F100GMJ3CFA#BA0 offers optimal cost/performance balance. |
| R7F100GMK3CFA#BA0 | Same package and memory (256 KB/24 KB), but rated for -40 to +85°C (consumer grade "2D") instead of industrial +105°C. | Valid for indoor consumer appliances or office equipment where ambient temperature stays below 85°C; unsuitable for factory-floor or outdoor enclosures. | Choose R7F100GMK3CFA#BA0 only when full industrial temperature range is unnecessary-reduces qualification burden and may lower procurement cost. |
Compared with R7F100GLJ3CFA#BA0 and R7F100GMK3CFA#BA0, the R7F100GMJ3CFA#BA0 uniquely balances industrial temperature resilience, adequate memory for mid-tier firmware, and optimized power efficiency-making it the preferred choice for cost-sensitive, thermally demanding embedded control applications without over-engineering.
Availability
R7F100GMJ3CFA#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control interfaces, building automation controllers, and battery-backed data loggers requiring stable component supply across extended product lifecycles.
Supply support for R7F100GMJ3CFA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust capacitive touch, long battery life, and seamless integration of analog/mixed-signal peripherals.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GMJ3CFA#BA0?
The R7F100GMJ3CFA#BA0 supports up to 32 MHz operation 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 also supports ultra-low-speed operation at 32.768 kHz for RTC and deep-sleep functions, maintaining full functionality down to 1.6 V.
Does the R7F100GMJ3CFA#BA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GMJ3CFA#BA0 integrates the CTSU2L capacitive sensing unit, supporting both self-capacitance (up to 32 independent keys) and mutual-capacitance (8×8 matrix = 64 keys) configurations. It includes built-in noise cancellation, auto-calibration, and dedicated electrode pins (e.g., P30, P31, P50–P51, P60–P62, P70–P73) - no external RC networks or dedicated touch ICs are required.
How does the SNOOZE mode sequencer (SMS) in the R7F100GMJ3CFA#BA0 reduce system power consumption?
The SNOOZE mode sequencer (SMS) in the R7F100GMJ3CFA#BA0 executes up to 32 predefined operations-including ADC conversions, CTSU scans, timer waits, and data transfers-without waking the CPU, flash, or RAM. This enables autonomous sensor polling at regular intervals while maintaining ~210 nA system current, reducing average power by >90% compared to CPU-driven polling loops in battery-operated applications.
What serial communication interfaces are available on the R7F100GMJ3CFA#BA0, and how many channels does each support?
The R7F100GMJ3CFA#BA0 provides up to 10 I²C/Simplified I²C channels, 6 UARTA/LIN-bus-compatible channels, and 8 CSI/SPI channels. All interfaces are multiplexed across GPIO pins and fully configurable via the Peripheral I/O Redirection Register (PIOR), allowing flexible pin assignment to match PCB routing constraints without sacrificing channel count.
Is the R7F100GMJ3CFA#BA0 pin-compatible with other RL78/G23 variants in the same 80-pin LQFP package?
Yes, all RL78/G23 80-pin LQFP variants-including R7F100GMJ3CFA#BA0, R7F100GMK3CFA#BA0, and R7F100GML3CFA#BA0-share identical pinouts and mechanical footprints (PLQP0080JA-B). Memory size, temperature grade, and flash/RAM configurations differ, but PCB layout and schematic symbols remain interchangeable across this package family.
R7F100GMJ3CFA#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 70
- 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 17x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GMJ3CFA#BA0 FAQ
1.How can I place an order for R7F100GMJ3CFA#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GMJ3CFA#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 R7F100GMJ3CFA#BA0 reliable?
The price and inventory of R7F100GMJ3CFA#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GMJ3CFA#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GMJ3CFA#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GMJ3CFA#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GMJ3CFA#BA0?
R7F100GMJ3CFA#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GMJ3CFA#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 R7F100GMJ3CFA#BA0?
For technical support, including R7F100GMJ3CFA#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GMJ3CFA#BA0 requirements.
6.How does Aetrix verify that R7F100GMJ3CFA#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GMJ3CFA#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 R7F100GMJ3CFA#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GMJ3CFA#BA0?
All R7F100GMJ3CFA#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GMJ3CFA#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 R7F100GMJ3CFA#BA0 part is unused and in its original packaging.
Return procedure for R7F100GMJ3CFA#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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