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Renesas R7F100GMK3CFB#AA0
- Part No.:
- R7F100GMK3CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7F100GMK3CFB#AA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:476
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Product details
Overview
R7F100GMK3CFB#AA0 from Renesas is an RL78/G23 80-pin ultra-low-power 16-bit MCU with 384 KB code flash, 8 KB data flash, and 32 KB RAM, operating from 1.6–5.5 V. It integrates capacitive touch sensing (up to 64 keys), 12-bit ADC (26 channels), dual 8-bit DACs, RTC, and multiple serial interfaces including UARTA (6 ch), IICA (10 ch), and CSI (8 ch), targeting industrial HMI and sensor-edge control applications.
For engineers reviewing the R7F100GMK3CFB#AA0 datasheet, R7F100GMK3CFB#AA0 pinout, R7F100GMK3CFB#AA0 application, or R7F100GMK3CFB#AA0 equivalent, key selection considerations include its LFQFP-80 (0.5 mm pitch) package, -40°C to +105°C industrial temperature grade, SNOOZE mode sequencer for autonomous low-power sensing, and CTSU2L-based touch controller with self/mutual capacitance support.
Technical Context
The R7F100GMK3CFB#AA0 implements the RL78 CPU core with a 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). Its power architecture 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 event-driven autonomy: the Logic and Event Link Controller (ELCL) routes signals between peripherals without CPU intervention; the SNOOZE Mode Sequencer (SMS) executes up to 32 preconfigured commands-including ADC sampling, comparison, and wake-up triggers-while keeping CPU, flash, and RAM powered down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 384 KB code flash + 8 KB data flash; 2 KB block size; background operation during rewrite |
| RAM | 32 KB on-chip RAM with 210-nA retention for 4 KB |
| Operating Voltage | 1.6–5.5 V single supply; supports mixed-voltage I/O (1.8/2.5/3.0 V compatible) |
| Temperature Range | -40°C to +105°C (industrial grade, "3C" field code) |
| Capacitive Sensing | CTSU2L unit supporting 32-key self-cap or 64-key 8×8 mutual-cap matrix |
| ADC/DAC | 12-bit ADC (26 channels, internal 1.48 V ref & temp sensor); dual 8-bit DACs (0–VDD output, realtime update) |
| Timers & RTC | 16-bit TAU (16 ch), 32-bit interval timer (1×32-bit + 2×16-bit + 4×8-bit), RTC (alarm, correction, 1-sec to 99-yr count) |
Pinout & Package
Package: LFQFP-80 (12 × 12 mm, 0.50-mm pitch), lead-free, RoHS-compliant, industrial-grade (3C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / P122 | Crystal oscillator input/output | Supports external 32.768 kHz crystal (P121) and up to 20 MHz main crystal (P122); enables precise RTC and system clock |
| P30 / P31 / P70–P73 | Capacitive touch sensing inputs | Dedicated CTSU2L pins for self-cap (TSCAP, VCOUT0/1) and mutual-cap (TSxx) operation; enable robust touch HMI without external components |
| P60 / P61 / P62 | I²C interface (SCLA0/SDAA0/CCD06) | Hardware IICA channel 0 with clock stretching, arbitration, and multi-master support; used for sensor hub or display interface |
| P10–P17 | Serial array unit (SAU) channels | Configurable as UARTA (6 ch), CSI (8 ch), or IICA (10 ch); supports LIN-bus framing and hardware baud rate generation |
| P00 / P01 / P20–P26 | Analog input (ANI0–ANI19, ANI2–ANI6) | 26-channel 12-bit ADC input with selectable reference (AVREFP/M, internal 1.48 V, or DAC output); supports simultaneous sampling |
| RESET / REGC / VDD / VSS | Power and reset management | Integrated POR and dual LVDs (LVD0/LVD1); REGC requires 0.47–1 µF capacitor to VSS for stable internal regulator operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step autonomous sequences (ADC read, compare, conditional wake) without CPU, flash, or RAM power-reducing average system current in periodic sensing |
| Capacitive Touch Unit (CTSU2L) | Single-pin self-cap (32 keys) or 8×8 mutual-cap (64 keys) with built-in noise rejection; eliminates need for external touch controller IC |
| Data Flash Background Operation | Enables code execution from program memory while rewriting 8 KB data flash-critical for firmware-over-the-air (FOTA) and parameter logging |
| Event Link Controller (ELCL) | Hardware routing of peripheral events (e.g., ADC EOC → DMA trigger → UART TX start) without software overhead or interrupt latency |
| Ultra-Low-Power Operating Modes | HALT (210 nA retention), STOP (300 nA with RTC active), and SNOOZE (1.2 µA typical for touch polling)-validated across full -40°C to +105°C range |
| Industrial Temperature Grade | Qualified per AEC-Q100 stress test conditions for continuous operation at +105°C ambient-suitable for motor drives and factory automation |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: 8-inch touch-enabled operator interface for PLC-controlled packaging machinery, requiring reliable button/slider response under EMI-rich factory environments. IC Role / Device Role / Timing Role: Primary MCU executing real-time motion control logic while managing capacitive touch overlay via CTSU2L and driving segmented LCD via SAU PWM outputs. Use Value: Integrated 64-key mutual-cap touch eliminates external controller BOM cost; SNOOZE mode reduces average panel standby current to <2 µA, extending battery life in portable variants. | Use Scenario: Battery-powered vibration/temperature node mounted on HVAC compressors, transmitting data every 15 minutes via UART-to-LoRaWAN bridge. IC Role / Device Role / Timing Role: System controller performing analog sensor acquisition (temp, accel), local threshold detection, and low-duty-cycle wireless transmission using RTC-triggered wake-up. Use Value: 210-nA RAM retention preserves calibration data during 14-day battery outage; background data flash writes enable secure OTA firmware updates without interrupting sensor logging. |
| Energy Meter Front-End | Home Appliance Control Board |
Use Scenario: DIN-rail-mounted three-phase electricity meter with anti-tampering features, requiring isolated communication, tamper detection, and metrology-grade timing. IC Role / Device Role / Timing Role: Secure metering co-processor handling pulse counting, RTC time stamping, and encrypted UART communication to host MCU; uses LVDs for brown-out detection. Use Value: Dual voltage detectors (LVD0/LVD1) provide configurable reset thresholds for AC/DC supply monitoring; 32.768 kHz RTC with ±1 ppm stability ensures accurate billing over temperature. | Use Scenario: Washing machine main control board managing motor drive, water valves, temperature sensing, and LED/touch UI-all within tight thermal and cost constraints. IC Role / Device Role / Timing Role: Central application MCU running real-time wash cycle state machine, reading thermistors/pressure sensors via 12-bit ADC, and driving triac outputs via controlled-current ports. Use Value: Controlled-current drive pins (6–8 available) directly sink valve solenoid loads without external drivers; integrated DACs generate precise heater reference voltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GML3CFB#AA0 | Same 80-pin LFQFP package and 3C temperature grade, but 512 KB code flash / 48 KB RAM; identical peripheral set and pinout | Required where larger firmware image size or extended RAM buffer (e.g., for protocol stacks or audio buffering) is needed | Select when future firmware growth headroom or additional RTOS task memory is critical; same PCB layout and qualification effort |
| R7F100GMJ3CFB#AA0 | Same package and temperature rating, but 256 KB code flash / 24 KB RAM; otherwise identical peripheral configuration and pin compatibility | Suitable for cost-sensitive designs with smaller firmware footprint and reduced RAM requirements (e.g., basic timer/control functions) | Choose for BOM cost reduction where feature set remains sufficient; drop-in replacement with no layout or firmware changes |
Compared with R7F100GMK3CFB#AA0, the R7F100GML3CFB#AA0 provides 128 KB more flash and 16 KB more RAM for complex connectivity stacks, while the R7F100GMJ3CFB#AA0 reduces flash/RAM by 128 KB/8 KB-enabling lower unit cost without sacrificing peripheral functionality or industrial reliability.
Availability
R7F100GMK3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, energy meter front-ends, and home appliance control boards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7F100GMK3CFB#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G23 product line delivers true ultra-low-power 16-bit MCUs optimized for industrial human-machine interfaces, sensor edge nodes, and cost-sensitive embedded control-combining sub-µA sleep modes with rich analog and communication peripherals in compact packages.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GMK3CFB#AA0?
The R7F100GMK3CFB#AA0 supports a maximum system clock of 32 MHz using the high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.03125 µs. The core also supports ultra-low-speed operation at 32.768 kHz, yielding a 30.5 µs instruction cycle-ideal for RTC and low-power background tasks. Both modes are fully supported across the -40°C to +105°C industrial temperature range.
Does the R7F100GMK3CFB#AA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GMK3CFB#AA0 integrates the CTSU2L capacitive touch sensing unit. It supports two configurations: self-capacitance mode (up to 32 independent keys using dedicated TSCAP/VCOUT pins), and mutual-capacitance matrix mode (up to 64 keys in an 8×8 grid using TSxx pins). Both modes include built-in noise cancellation and auto-calibration, eliminating external touch controller components and reducing BOM cost.
What are the power supply requirements and voltage detector capabilities of the R7F100GMK3CFB#AA0?
The R7F100GMK3CFB#AA0 operates from a single 1.6–5.5 V supply. It includes a power-on-reset (POR) circuit and two independent voltage detectors: LVD0 (configurable threshold from 1.6–4.2 V) and LVD1 (1.6–3.0 V). These support brown-out detection, safe shutdown sequencing, and supply monitoring in industrial systems-especially critical for energy meters and motor controllers where undervoltage can cause unsafe operation.
Can the R7F100GMK3CFB#AA0 perform flash memory operations while executing code from other memory regions?
Yes, the R7F100GMK3CFB#AA0 supports background operation (BGO) for its 8 KB data flash memory. Code execution continues uninterrupted from code flash or RAM while data flash is being rewritten-enabling reliable firmware-over-the-air (FOTA) updates, secure parameter storage, and real-time logging without system stalls or watchdog resets.
Is the R7F100GMK3CFB#AA0 pin-compatible with other RL78/G23 variants in the same 80-pin LFQFP package?
Yes, all RL78/G23 80-pin variants-including R7F100GMG3CFB#AA0, R7F100GMH3CFB#AA0, R7F100GMJ3CFB#AA0, R7F100GML3CFB#AA0, and R7F100GMN3CFB#AA0-share identical LFQFP-80 pinouts and electrical characteristics. This allows direct substitution based on flash/RAM requirements without PCB redesign, provided the target variant's peripheral enablement matches the application's needs.
R7F100GMK3CFB#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:
R7F100GMK3CFB#AA0 FAQ
1.How can I place an order for R7F100GMK3CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GMK3CFB#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 R7F100GMK3CFB#AA0 reliable?
The price and inventory of R7F100GMK3CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GMK3CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GMK3CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GMK3CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GMK3CFB#AA0?
R7F100GMK3CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GMK3CFB#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 R7F100GMK3CFB#AA0?
For technical support, including R7F100GMK3CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GMK3CFB#AA0 requirements.
6.How does Aetrix verify that R7F100GMK3CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GMK3CFB#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 R7F100GMK3CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GMK3CFB#AA0?
All R7F100GMK3CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GMK3CFB#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 R7F100GMK3CFB#AA0 part is unused and in its original packaging.
Return procedure for R7F100GMK3CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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