Renesas R7F100GFL3CFP#AA0
- Part No.:
- R7F100GFL3CFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R7F100GFL3CFP#AA0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F100GFL3CFP#AA0 from Renesas is a 44-pin LQFP-packaged RL78/G23 16-bit microcontroller with 256 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V and supporting -40 to +85°C industrial ambient temperature. It integrates capacitive touch sensing (CTSU2L), 12-bit ADC (26 channels), dual 8-bit DACs, RTC, and multiple serial interfaces including UARTA, IICA, and simplified SPI for embedded control in low-power industrial HMI and sensor nodes.
For engineers reviewing the R7F100GFL3CFP#AA0 datasheet, R7F100GFL3CFP#AA0 pinout, R7F100GFL3CFP#AA0 application, or R7F100GFL3CFP#AA0 equivalent, key selection considerations include its 44-pin LQFP-0.8 mm pitch package, 256 KB flash/24 KB RAM memory configuration, STOP/SNOOZE ultra-low-power modes (210 nA data retention), and integrated CTSU2L for self/mutual capacitance touch up to 64 keys.
Technical Context
The R7F100GFL3CFP#AA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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 SNOOZE mode sequencer (SMS) executes up to 32 preconfigured operations-including comparisons and calculations-without CPU, flash, or RAM activation, enabling deterministic low-power sensor polling.
Peripheral integration includes a Logic and Event Link Controller (ELCL) for configurable event routing between peripherals, a Data Transfer Controller (DTC) with chain transfer support, and a Remote Control Signal Receiver (REMC) with 4-waveform pattern matching for IR remote decoding. All analog blocks-ADC, DAC, comparators, and CTSU2L-are referenced to internal 1.48 V or selectable external/DAC sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and ultra-low-power operation down to 32.768 kHz subsystem clock. |
| Flash/RAM Capacity | 256 KB code flash + 8 KB data flash + 24 KB RAM; supports firmware updates via background operation (BGO) and boot swapping. |
| Power Modes | HALT (41 µA/MHz), STOP (210 nA data retention), SNOOZE (CPU-free peripheral sequencing); reduces system-level power budget in battery-operated devices. |
| Analog Peripherals | 12-bit ADC (26 channels, 1.48 V reference), dual 8-bit DACs (0–VDD output), 2-channel comparator (selectable reference), CTSU2L (32-key self-cap or 64-key mutual-cap matrix). |
| Timers & Clocking | 16-bit TAU (12 channels), 32-bit interval timer (1×32-bit/2×16-bit/4×8-bit), RTC (alarm/correction), watchdog timer; high-accuracy on-chip oscillators (±1.0% at 32 MHz). |
| Communication Interfaces | UARTA (3–6 channels, LIN support), IICA (4–10 channels), simplified SPI (3–8 channels), REMC (1 channel, 4-pattern IR decode); eliminates need for external protocol translators. |
| Operating Range | 1.6–5.5 V supply voltage; -40 to +85°C ambient temperature (industrial grade); supports direct interfacing with 1.8/2.5/3.0 V logic without level shifters. |
Pinout & Package
Package: 44-pin plastic LQFP (10 × 10 mm, 0.80-mm pitch), RoHS-compliant, tray packaging (#AA0 specification).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ADC input / UARTA transmit | ANI17 analog input or TxD1 signal; enables dual-role use in sensor-to-serial gateway designs. |
| P01 | ADC input / UARTA receive | ANI16 analog input or RxD1 signal; supports simultaneous analog monitoring and serial command reception. |
| P10–P17 | Serial interface I/O | SCK00/SI00/SO00 (SPI), SCK20/SI20/SO20 (second SPI), SCK11/SI11/SO11 (third SPI); provides three independent full-duplex serial buses. |
| P30 | RTC output / touch sense | RTC1HZ clock output and TSCAP for CTSU2L; allows precise timing and capacitive sensing on same pin with time-multiplexed operation. |
| P60/P61 | IICA bus interface | SCLA0/SDAA0 pins for I²C-compatible communication; supports multi-master arbitration and standard/fast-mode speeds. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset supervisors and manual push-button circuits. |
| VDD/VSS | Power supply rails | Dual VDD/VSS pairs ensure stable core and I/O domain operation; decoupling required per datasheet layout guidelines. |
| REGC | Regulator capacitor terminal | Connects to VSS via 0.47–1 µF capacitor; stabilizes internal LDO output for analog and digital domains. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 210 nA data retention current preserves 24 KB RAM state during extended sleep-critical for battery-powered metering and sensor nodes. |
| SNOOZE mode sequencer (SMS) | Executes up to 32 autonomous operations (e.g., ADC sampling → compare → conditional GPIO toggle) without CPU wake-up, reducing average system power by >90% vs. polling loops. |
| Capacitive Touch Sensing Unit (CTSU2L) | Supports both self-capacitance (32 keys) and mutual-capacitance (8×8 matrix = 64 keys) with built-in noise rejection-enables robust touch panels in noisy industrial environments. |
| Background Data Flash Programming | Allows execution from code flash while rewriting data flash (1M write cycles, 8 KB capacity), enabling field firmware updates without interrupting real-time control tasks. |
| ELCL event routing | Configurable hardware interconnect between peripherals (e.g., ADC end-of-conversion → trigger DMA transfer → set GPIO) eliminates software overhead and jitter in time-critical signal chains. |
Applications
| Industrial HMI Panels | Smart Energy Meters |
|---|---|
Use Scenario: Touch-enabled operator interface for PLCs and motor drives with backlight dimming and button feedback. IC Role / Device Role: Main controller managing CTSU2L touch detection, PWM-controlled LED backlight, UARTA communication with host MCU, and RTC-based logging. Use Value: Integrated CTSU2L and dual DACs eliminate external touch controller and LED driver ICs; 256 KB flash accommodates GUI firmware and localization assets. | Use Scenario: Residential electricity meter with tamper detection, pulse counting, and wireless data upload via UART-to-LoRa bridge. IC Role / Device Role: System-on-chip handling metrology ADC sampling, pulse input capture, RTC timestamping, and UARTA interface to RF module. Use Value: 12-bit ADC with internal 1.48 V reference ensures consistent accuracy across supply voltage drift; STOP mode extends battery life to >10 years in backup operation. |
| Wireless Sensor Nodes | Home Appliance Control |
Use Scenario: Battery-powered temperature/humidity node transmitting data every 5 minutes via UART-to-BLE module. IC Role / Device Role: Low-power sensor hub performing ADC reads, CTSU2L button wake-up, RTC-triggered transmission, and SNOOZE-mode sequencing. Use Value: SNOOZE mode reduces average current to <1 µA between transmissions; integrated REMC supports IR remote pairing without extra components. | Use Scenario: Washing machine main control board managing motor drive signals, water level sensing, display, and user input. IC Role / Device Role: Central MCU executing PID motor control, reading pressure/temperature sensors via ADC, driving buzzer via PCLBUZ, and decoding IR remote commands. Use Value: Dual 8-bit DAC outputs enable precise analog control of motor drivers; REMC's 4-waveform matching supports legacy IR remotes without external decoder ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GFK3CFP#AA0 | 192 KB code flash, 20 KB RAM, same 44-pin LQFP package and peripheral set. | Lower memory footprint suits simpler control tasks without GUI or extensive data logging. | Select when firmware size is <192 KB and cost sensitivity outweighs future scalability needs. |
| R7F100GFL3CFA#AA0 | Same 256 KB/24 KB memory but in 52-pin LQFP-0.65 mm package with 2 additional ADC channels and 2 extra UARTA channels. | Required for designs needing >26 analog inputs or >6 UARTA interfaces (e.g., multi-sensor fusion gateways). | Choose only if pin count expansion and peripheral headroom justify PCB redesign and higher BOM cost. |
Compared with R7F100GFK3CFP#AA0, the R7F100GFL3CFP#AA0 provides 64 KB more flash and 4 KB more RAM for complex firmware or data buffering; compared with R7F100GFL3CFA#AA0, it trades 8 extra pins and 2 peripheral channels for lower package cost and smaller PCB area-ideal for cost-optimized 44-pin industrial controls.
Availability
R7F100GFL3CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, and wireless sensor nodes requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R7F100GFL3CFP#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 management solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line delivers true low-power performance for cost-sensitive industrial and consumer applications, combining ultra-low active and standby currents with rich analog and human-machine interface peripherals.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GFL3CFP#AA0?
The R7F100GFL3CFP#AA0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. This timing is achievable across the full 1.6–5.5 V supply range and -40 to +85°C temperature range, enabling deterministic real-time control in industrial environments where R7F100GFL3CFP#AA0 is deployed.
Does the R7F100GFL3CFP#AA0 support in-system programming and debugging?
Yes, the R7F100GFL3CFP#AA0 includes on-chip debugging capability and supports self-programming of code and data flash memory. It implements flash shield window and boot swapping features to enable secure firmware updates without external programmers. Debugging is performed via the TOOL0/TOOLRxD/TOOLTxD pins using Renesas E2 studio and E2 emulator, and R7F100GFL3CFP#AA0 requires no external debug hardware beyond standard SWD/JTAG adapters.
How many capacitive touch channels does the R7F100GFL3CFP#AA0 support, and what configurations are available?
The R7F100GFL3CFP#AA0 integrates the CTSU2L unit supporting up to 32 self-capacitance keys (single-pin per key) or 64 mutual-capacitance keys (8×8 matrix). It operates within the 1.8–5.5 V VDD range and includes hardware noise cancellation. The R7F100GFL3CFP#AA0 achieves this using dedicated CTSU2L pins (e.g., P30/TSCAP, P20–P25, P00–P01) without consuming general-purpose I/O or ADC resources-making it ideal for touch-enabled industrial interfaces where R7F100GFL3CFP#AA0 serves as the sole touch controller.
What are the voltage detector (LVD) thresholds and reset behaviors supported by the R7F100GFL3CFP#AA0?
The R7F100GFL3CFP#AA0 includes two independent voltage detectors: LVD0 and LVD1. LVD0 offers programmable thresholds from 1.6 to 4.2 V in 0.1 V steps; LVD1 provides fixed thresholds of 2.8 V or 4.0 V. Both can generate interrupts or resets, and their detection status is readable via dedicated registers. These features allow R7F100GFL3CFP#AA0 to implement brown-out protection, battery voltage monitoring, and graceful shutdown sequences in systems where R7F100GFL3CFP#AA0 manages power-critical functions.
Can the R7F100GFL3CFP#AA0 operate from a 32.768 kHz crystal, and what functions remain active in STOP mode?
Yes, the R7F100GFL3CFP#AA0 supports a 32.768 kHz crystal connected to X1/XT1 (P121) and X2/XT2 (P122) pins for RTC and ultra-low-power timing. In STOP mode, the RTC, data retention RAM (24 KB), LVD, and key interrupt sources (INTP0–INTP5) remain active while CPU, flash, and most peripherals are halted. This allows R7F100GFL3CFP#AA0 to maintain accurate timekeeping and respond to external events with 210 nA typical current draw-essential for battery-backed applications where R7F100GFL3CFP#AA0 is the primary system controller.
R7F100GFL3CFP#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:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 48K 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:
R7F100GFL3CFP#AA0 FAQ
1.How can I place an order for R7F100GFL3CFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GFL3CFP#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 R7F100GFL3CFP#AA0 reliable?
The price and inventory of R7F100GFL3CFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GFL3CFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GFL3CFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GFL3CFP#AA0 transactions.
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4.How is shipping managed for R7F100GFL3CFP#AA0?
R7F100GFL3CFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GFL3CFP#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 R7F100GFL3CFP#AA0?
For technical support, including R7F100GFL3CFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GFL3CFP#AA0 requirements.
6.How does Aetrix verify that R7F100GFL3CFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GFL3CFP#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 R7F100GFL3CFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GFL3CFP#AA0?
All R7F100GFL3CFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GFL3CFP#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 R7F100GFL3CFP#AA0 part is unused and in its original packaging.
Return procedure for R7F100GFL3CFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GFL3CFP#AA0 Tags

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