Renesas R7F100GFF3CFP#AA0
- Part No.:
- R7F100GFF3CFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R7F100GFF3CFP#AA0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:952
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Product details
Overview
R7F100GFF3CFP#AA0 from Renesas is a 44-pin LQFP-packaged RL78/G23 16-bit microcontroller with 192 KB code flash, 8 KB data flash, and 20 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 ADC resolution (8/10/12-bit) for industrial HMI and sensor-edge applications.
For engineers reviewing the R7F100GFF3CFP#AA0 datasheet, R7F100GFF3CFP#AA0 pinout, R7F100GFF3CFP#AA0 application, or R7F100GFF3CFP#AA0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, -40°C to +85°C industrial temperature grade (C-suffix), SNOOZE mode sequencer for autonomous low-power sensing, and hardware event link controller (ELCL) for peripheral-triggered operation without CPU wake-up.
Technical Context
The R7F100GFF3CFP#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). Its SNOOZE mode sequencer executes up to 32 pre-programmed commands-including comparisons and calculations-using only dedicated hardware, eliminating CPU, RAM, and flash access during intermittent sensing tasks.
Peripheral integration includes a 21-function ELCL for event-driven signal routing between timers, ADC, UART, and CTSU; dual-clock domain operation (high-speed on-chip oscillator ±1.0% accuracy at 1.8–5.5 V; 32.768 kHz low-speed oscillator); and background data flash rewriting (BGO) enabling concurrent program execution and nonvolatile storage updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash Memory | 192 KB code flash (2 KB block size) + 8 KB data flash with 1M rewrite cycles and BGO support |
| RAM | 20 KB on-chip RAM with 210 nA data retention current at 4 KB usage |
| Operating Voltage | 1.6–5.5 V single supply; supports direct interface to 1.8 V, 2.5 V, and 3.0 V external logic |
| Power Modes | HALT (CPU stop), STOP (full system stop with fast wake-up), and SNOOZE (peripheral-only autonomous operation) |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix = 64 keys) at VDD = 1.8–5.5 V |
| Analog Peripherals | 12-bit ADC (26 channels, internal 1.48 V reference, temp sensor), 8-bit DAC (2 channels, 0–VDD output), 2-channel comparator with selectable internal/external reference |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.80-mm pitch), industrial-grade (C-suffix), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ADC input / UARTA transmit / timer input | Primary serial interface TX for LIN-compliant UARTA; also serves as 12-bit ADC channel ANI17 and TAU timer TI00 input |
| P01 | ADC input / UARTA receive / timer output | Primary serial interface RX for LIN-compliant UARTA; also serves as 12-bit ADC channel ANI16 and TAU timer TO00 output |
| P10–P17 | Multi-function I/O / SAU / SPI / I²C / buzzer | Configurable serial array unit (SAU) channels supporting UART, simplified SPI (CSI), and I²C; P15/P16 support programmable current drive for buzzer control |
| P20–P23 | Analog input / reference / CTSU / comparator | AVREFP/AVREFM inputs for ADC; IVREF0/IVREF1 for comparator; CTSU2L sensing electrodes TS20–TS23 for mutual/self-capacitance touch |
| P30–P31 | RTC / touch / interrupt / timer | P30 provides RTC 1 Hz output (RTC1HZ), touch sense capacitor (TSCAP), and key interrupt INTP3; P31 supports touch (TS01), buzzer (PCLBUZ0), and TAU timer TI03/TO03 |
| P50–P51 | ADC / touch / serial / interrupt | ADC channels ANI0–ANI3 plus touch sense (TS00), serial interface SI11/SDA11 (I²C), SO11 (SPI), and key interrupts INTP1/INTP2 |
| P60–P61 | I²C interface / CTSU | SCLA0/SDAA0 pins for I²C bus communication; also serve as CTSU2L electrodes CCD04/CCD05 in mutual-capacitance mode |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset ICs or manual push-button circuits |
| VDD / VSS | Power supply / ground | Dual power domains: VDD (1.6–5.5 V) powers digital/analog/CTSU; VSS is common analog/digital ground reference |
| REGC | Regulator bypass capacitor | Must be connected to VSS via 0.47–1 µF ceramic capacitor to stabilize internal voltage regulator |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous operations (e.g., ADC sampling → comparison → GPIO toggle) without CPU, RAM, or flash activation - reduces average system power by >90% in periodic sensing |
| Event Link Controller (ELCL) | Hardware-configurable logic links peripherals (e.g., timer overflow → ADC trigger → CTSU scan → interrupt) - eliminates software polling and ISR overhead |
| Capacitive Touch Unit (CTSU2L) | Supports both self-capacitance (32 keys) and mutual-capacitance (64-key 8×8 matrix) with built-in noise rejection - enables robust touch interfaces in noisy industrial environments |
| Background Data Flash Rewrite (BGO) | Allows full-speed program execution from code flash while simultaneously writing to data flash - enables over-the-air firmware updates without system interruption |
| Dual Clock Domains | Independent high-speed (32 MHz ±1.0%) and low-speed (32.768 kHz) oscillators enable precise RTC operation and fast wake-up from STOP mode in < 4 µs |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: 4.3-inch resistive/capacitive touch panel in factory-floor operator interface with ambient temperature up to +85°C. IC Role / Device Role / Timing Role: Main controller executing real-time UI rendering, CTSU2L touch scanning, and Modbus RTU communication via UARTA. Use Value: SNOOZE mode sequencer autonomously scans 32 touch keys every 100 ms while CPU remains in STOP mode - extends battery life in backup-powered panels. | Use Scenario: Battery-powered vibration/temperature node mounted on rotating machinery with wireless telemetry. IC Role / Device Role / Timing Role: Sensor aggregator acquiring analog signals (temp, accel), performing local FFT preprocessing, and transmitting via UART-to-LoRa bridge. Use Value: 12-bit ADC with internal 1.48 V reference and temperature sensor enables calibration-free measurements; BGO allows logging sensor data to data flash during transmission. |
| Energy Metering Interfaces | Home Appliance Control |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse counting, and RS-485 communication. IC Role / Device Role / Timing Role: System manager handling metrology ADC interface, real-time clock (RTC) for billing timestamps, and isolated UART for DLMS/COSEM protocol. Use Value: RTC with alarm interrupt and clock correction maintains ±2 ppm accuracy over -40°C to +85°C; ELCL links zero-crossing detector to timer capture for precise pulse counting. | Use Scenario: Washing machine main control board requiring water-level sensing, motor phase control, and LED/touch UI. IC Role / Device Role / Timing Role: Central MCU managing triac firing timing, CTSU2L for waterproof touch buttons, and PWM for LED dimming. Use Value: Controlled-current drive ports (P15/P16) directly drive piezo buzzers and LEDs without external drivers; 8-bit DAC outputs analog signals for motor feedback conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GFH3CFP#AA0 | Same 44-pin LQFP package, but 256 KB code flash, 24 KB RAM, and identical peripheral set | Required where larger firmware image size or extended RAM for complex state machines is needed | Select when future firmware growth headroom or additional buffer space for communication stacks is critical |
| R7F100GFK3CFP#AA0 | Same 44-pin LQFP package, 384 KB code flash, 32 KB RAM, and identical peripheral set | Targeted at applications needing secure boot, OTA update partitioning, or multi-threaded RTOS operation | Choose when advanced firmware security features (flash shield window, boot swapping) or deterministic RTOS scheduling require extra memory headroom |
Compared with R7F100GFF3CFP#AA0, the R7F100GFH3CFP#AA0 offers 33% more code flash and 20% more RAM within identical pinout and power envelope, while R7F100GFK3CFP#AA0 doubles RAM and increases flash by 100% - all three share identical SNOOZE sequencer, ELCL, CTSU2L, and BGO capabilities, making them drop-in upgrades for memory-constrained designs.
Availability
R7F100GFF3CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, energy metering interfaces, and home appliance control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7F100GFF3CFP#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 headquartered in Tokyo, Japan, delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G23 product line is engineered for ultra-low-power industrial and consumer edge devices, emphasizing autonomous peripheral operation (SNOOZE, ELCL), robust human-machine interaction (CTSU2L), and seamless firmware evolution (BGO, flash shield).
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R7F100GFF3CFP#AA0?
The R7F100GFF3CFP#AA0 features a high-speed on-chip oscillator selectable up to 32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = −20 to +85°C. This eliminates need for external crystals in cost-sensitive industrial applications while maintaining timing integrity for UART/LIN communication and real-time control loops.
Does R7F100GFF3CFP#AA0 support capacitive touch sensing, and what configurations are available?
Yes, R7F100GFF3CFP#AA0 integrates the CTSU2L capacitive sensing unit supporting both self-capacitance (up to 32 keys using single pins) and mutual-capacitance (up to 64 keys in 8×8 matrix) modes. It operates across the full VDD range (1.8–5.5 V) and includes hardware noise cancellation - enabling reliable touch interfaces in electrically noisy factory environments.
How does the SNOOZE mode sequencer in R7F100GFF3CFP#AA0 reduce system power consumption?
The SNOOZE mode sequencer in R7F100GFF3CFP#AA0 executes up to 32 preloaded commands - including ADC sampling, value comparison, and GPIO toggling - using dedicated hardware without engaging the CPU, RAM, or flash. This enables periodic sensing tasks (e.g., touch scan every 100 ms) at sub-µA average current, extending battery life in maintenance-free industrial sensors.
Can R7F100GFF3CFP#AA0 perform background data flash writes while executing application code?
Yes, R7F100GFF3CFP#AA0 supports Background Operation (BGO) for data flash, allowing full-speed program execution from code flash while concurrently rewriting data flash sectors. This enables seamless firmware updates, parameter logging, or configuration storage without halting real-time tasks - critical for always-on industrial controllers.
What communication interfaces are integrated into R7F100GFF3CFP#AA0, and which support LIN bus?
R7F100GFF3CFP#AA0 integrates UARTA (3–6 channels), simplified SPI (CSI, 3–8 channels), and I²C/Simplified I²C (4–10 channels). UARTA explicitly supports LIN-bus physical layer compliance per ISO 17987, including break detection, sync field processing, and checksum verification - enabling direct connection to automotive and industrial LIN networks without transceiver translation.
R7F100GFF3CFP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 37
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 10x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GFF3CFP#AA0 FAQ
1.How can I place an order for R7F100GFF3CFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GFF3CFP#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 R7F100GFF3CFP#AA0 reliable?
The price and inventory of R7F100GFF3CFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GFF3CFP#AA0 is usually 5 days.
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R7F100GFF3CFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GFF3CFP#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 R7F100GFF3CFP#AA0?
For technical support, including R7F100GFF3CFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GFF3CFP#AA0 requirements.
6.How does Aetrix verify that R7F100GFF3CFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GFF3CFP#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 R7F100GFF3CFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GFF3CFP#AA0?
All R7F100GFF3CFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GFF3CFP#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 R7F100GFF3CFP#AA0 part is unused and in its original packaging.
Return procedure for R7F100GFF3CFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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