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Renesas R7F100GMK3CFA#AA0
- Part No.:
- R7F100GMK3CFA#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7F100GMK3CFA#AA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:411
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Product details
Overview
R7F100GMK3CFA#AA0 from Renesas is an RL78/G23 80-pin industrial-grade 16-bit MCU with 384 KB code flash, 8 KB data flash, and 32 KB RAM, operating at 1.6–5.5 V and -40 to +105°C. It integrates capacitive touch sensing (CTSU2L), 16-bit TAU timers (up to 16 channels), RTC, 12-bit ADC (24 channels), dual 8-bit DACs, and UART/I²C/SPI interfaces - deployed in smart metering and industrial HMI control systems.
For engineers reviewing the R7F100GMK3CFA#AA0 datasheet, R7F100GMK3CFA#AA0 pinout, R7F100GMK3CFA#AA0 application, or R7F100GMK3CFA#AA0 equivalent, key selection criteria include its 384 KB flash/32 KB RAM configuration, LQFP-80 package with 0.65-mm pitch, industrial temperature rating (3C), and support for SNOOZE mode sequencer and ELCL event linking without CPU intervention.
Technical Context
The R7F100GMK3CFA#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its power management includes HALT, STOP, and SNOOZE modes - enabling 41 µA/MHz active current and 210 nA data retention for 4 KB RAM.
Peripheral integration centers on low-power autonomy: the SNOOZE mode sequencer executes up to 32 processes using 21 command types without waking the CPU, while the Event Link Controller (ELCL) routes signals between peripherals (e.g., ADC trigger → timer → interrupt) via configurable logic and flip-flop circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Flash Memory | 384 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles |
| RAM | 32 KB on-chip RAM with 210-nA data retention for 4 KB |
| Operating Voltage | 1.6–5.5 V single supply - enables direct battery or wide-input industrial rail operation |
| Temperature Range | -40 to +105°C (industrial grade, 3C marking) |
| Package | 80-pin LQFP, 14 × 14 mm, 0.65-mm pitch (PLQP0080JA-B) |
| Capacitive Sensing | CTSU2L unit supporting 32-key self-capacitance or 64-key mutual-capacitance matrix |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65-mm pitch), RoHS-compliant, industrial-grade (3C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / P122 | Crystal oscillator input/output | Supports external 32.768-kHz crystal (RTC) and up to 20-MHz main crystal; enables precise timing and low-power clock domain separation |
| P30 / P31 | Capacitive touch sense pins | TSCAP and TS01 pins dedicated to CTSU2L - enable robust touch button/slider implementation with noise immunity |
| P60 / P61 | I²C interface (SCLA0/SDAA0) | Hardware I²C master/slave interface with clock stretching and arbitration - used for sensor hub or EEPROM communication |
| P10–P12 / P14–P15 | UARTA/SPI/SAU channels | Configurable serial interfaces: UARTA (LIN-capable), simplified SPI (CSI), and Serial Array Unit - support multi-protocol peripheral connectivity |
| P00 / P01 | High-speed UART pins (TxD1/RxD1) | Dedicated full-duplex UART channel with hardware flow control - suitable for host MCU or modem interfacing |
| VDD / VSS | Power supply terminals | Single 1.6–5.5 V supply with internal voltage regulation; REGC capacitor required for stable core voltage |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous operations (e.g., ADC sampling → compare → GPIO toggle) without CPU wake-up - reduces average system power by >90% in periodic sensing |
| Event Link Controller (ELCL) | Hardware-configurable signal routing between peripherals (e.g., timer overflow → ADC start → DMA transfer) - eliminates software overhead and interrupt latency |
| Capacitive Touch Unit (CTSU2L) | Self- and mutual-capacitance support with built-in noise cancellation - enables reliable touch UI on metal-front panels or wet environments |
| Data Flash BGO | Background operation allows code execution from flash while rewriting data flash - enables over-the-air parameter updates without system freeze |
| Low-Power Oscillators | Independent high-speed (±1.0% accuracy), middle-speed, and 32.768-kHz low-speed oscillators - enables dynamic clock gating and multi-domain power optimization |
Applications
| Smart Energy Metering | Industrial HMI Panel |
|---|---|
Use Scenario: Electricity/water/gas meter with real-time consumption logging, tamper detection, and PLC/RF communication. IC Role / Device Role / Timing Role: Main controller managing metrology ADC, RTC timestamping, secure flash storage, and isolated UART/LIN for utility comms. Use Value: 384 KB flash stores firmware + encryption keys; 32 KB RAM buffers hourly usage data; SNOOZE mode samples sensors every 10 s with <1 µA average current. | Use Scenario: Local operator interface for PLC-controlled machinery with touch buttons, LED indicators, and status display. IC Role / Device Role / Timing Role: HMI processor handling capacitive touch decoding, buzzer feedback, LED PWM dimming, and RS-485 Modbus gateway. Use Value: CTSU2L supports 32-key overlay on stainless steel front panel; dual DACs drive analog meters; ELCL links timer → buzzer → GPIO for precise alert timing. |
| Building Automation Sensor Node | White-Goods Control Module |
Use Scenario: Battery-powered CO₂/temperature/humidity sensor node with BLE/Wi-Fi coexistence and local decision logic. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating ADC inputs, running threshold algorithms, and triggering wireless subsystems via GPIO/interrupt. Use Value: 210-nA RAM retention preserves calibration data during 5-year battery life; 12-bit ADC measures 0.1% RH resolution; SMS wakes only on threshold breach. | Use Scenario: Washing machine drum motor control with water level sensing, temperature monitoring, and user interface. IC Role / Device Role / Timing Role: System manager coordinating relay drivers, thermistor ADC, touch keys, buzzer alerts, and cycle timing via RTC and TAU. Use Value: 80-pin LQFP provides ample GPIO for solenoid/valve control; 16-bit TAU timers precisely manage motor phase timing; CTSU2L enables waterproof touch controls. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GML3CFA#AA0 | Same 80-pin LQFP package and 3C rating, but 512 KB flash / 48 KB RAM | Targeted at applications requiring larger firmware (e.g., OTA update stack + crypto + GUI) or extended data buffering | Select when firmware size exceeds 384 KB or RAM-intensive tasks (e.g., FFT-based vibration analysis) demand >32 KB |
| R7F100GMJ3CFA#AA0 | Same package and temperature grade, but 256 KB flash / 24 KB RAM | Optimized for cost-sensitive industrial controls where feature set fits smaller memory footprint | Choose for simpler HMI or sensor nodes where 384 KB flash is unnecessary and BOM cost reduction is critical |
Compared with R7F100GMK3CFA#AA0, R7F100GML3CFA#AA0 offers headroom for future firmware expansion and larger data buffers, while R7F100GMJ3CFA#AA0 reduces cost and power in resource-constrained designs - all share identical pinout, peripheral set, and industrial qualification.
Availability
R7F100GMK3CFA#AA0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI panels, and building automation sensor nodes requiring stable component supply across long product lifecycles.
Supply support for R7F100GMK3CFA#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 specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RL78/G23 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer devices requiring robust capacitive touch, integrated analog, and deterministic real-time control - with emphasis on energy efficiency and design simplicity.
FAQ
What is the maximum operating frequency of the R7F100GMK3CFA#AA0?
The R7F100GMK3CFA#AA0 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator, delivering a minimum instruction execution time of 0.03125 µs. External crystals up to 20 MHz are also supported via P121/P122 pins for precision timing-critical applications like RTC or LIN bus synchronization.
Does the R7F100GMK3CFA#AA0 support in-system programming and debugging?
Yes, the R7F100GMK3CFA#AA0 includes on-chip debugging capability compatible with Renesas E2 studio and CS+ IDEs. It supports SWD interface via dedicated TOOLRxD/TOOLTxD pins (P11/P12), enabling full read/write/erase access to flash and RAM during development and field firmware updates.
What capacitive touch configurations does the R7F100GMK3CFA#AA0 support?
The R7F100GMK3CFA#AA0 integrates the CTSU2L unit supporting both self-capacitance (up to 32 keys on individual pins) and mutual-capacitance (8×8 matrix, up to 64 keys) configurations. It operates across the full 1.8–5.5 V supply range and includes hardware noise cancellation - validated for use with metal overlays and in humid environments.
How many UART, I²C, and SPI interfaces are available on the R7F100GMK3CFA#AA0?
The R7F100GMK3CFA#AA0 provides up to 6 UARTA channels (including LIN-bus support), 10 I²C/Simplified I²C channels, and 8 simplified SPI (CSI) channels. Pin multiplexing allows concurrent use of multiple interfaces - e.g., UARTA0 for host comms, IICA0 for sensor hub, and CSI0 for display driver - within the 80-pin LQFP footprint.
Is the R7F100GMK3CFA#AA0 qualified for industrial temperature operation?
Yes, the R7F100GMK3CFA#AA0 carries the "3C" marking indicating qualification for industrial ambient temperature operation from -40 to +105°C. This rating is verified per JEDEC JESD22-A108 and applies across all specified voltage ranges (1.6–5.5 V) and functional modes including STOP and SNOOZE.
R7F100GMK3CFA#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 70
- 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 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:
R7F100GMK3CFA#AA0 FAQ
1.How can I place an order for R7F100GMK3CFA#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GMK3CFA#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 R7F100GMK3CFA#AA0 reliable?
The price and inventory of R7F100GMK3CFA#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GMK3CFA#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GMK3CFA#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GMK3CFA#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GMK3CFA#AA0?
R7F100GMK3CFA#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GMK3CFA#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 R7F100GMK3CFA#AA0?
For technical support, including R7F100GMK3CFA#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GMK3CFA#AA0 requirements.
6.How does Aetrix verify that R7F100GMK3CFA#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GMK3CFA#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 R7F100GMK3CFA#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GMK3CFA#AA0?
All R7F100GMK3CFA#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GMK3CFA#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 R7F100GMK3CFA#AA0 part is unused and in its original packaging.
Return procedure for R7F100GMK3CFA#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GMK3CFA#AA0 Tags
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