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Renesas R7F100GLL3CFA#AA0
- Part No.:
- R7F100GLL3CFA#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7F100GLL3CFA#AA0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:476
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Product details
Overview
R7F100GLL3CFA#AA0 from Renesas is a 64-pin, industrial-grade RL78/G23 16-bit MCU with 512 KB code flash, 8 KB data flash, and 48 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 (CTSU2L), RTC, 16-bit timers, 12-bit ADC (24 channels), and multiple serial interfaces including UARTA, IICA, and SAU - deployed in smart metering and industrial HMI control systems.
For engineers reviewing the R7F100GLL3CFA#AA0 datasheet, R7F100GLL3CFA#AA0 pinout, R7F100GLL3CFA#AA0 application, or R7F100GLL3CFA#AA0 equivalent, key selection criteria include its LQFP-64 (0.65 mm pitch) package, -40 to +105°C temperature rating, SNOOZE mode sequencer for autonomous low-power sensor polling, and hardware ELCL for event-driven peripheral coordination without CPU intervention.
Technical Context
The R7F100GLL3CFA#AA0 implements the RL78 CPU core with CISC architecture and 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 SNOOZE mode sequencer executes up to 32 configurable commands across 21 instruction types-enabling periodic analog sensing, timer-triggered wakeups, and comparator-based event detection while keeping CPU, flash, and RAM powered down.
Peripheral integration includes a Logic and Event Link Controller (ELCL) that routes signals between peripherals (e.g., ADC completion → DMA trigger → UART transmit start), a Data Transfer Controller (DTC) with chain transfer support, and dual-voltage I/O (1.8/2.5/3.0 V compatible) with N-ch open-drain capability on select pins-facilitating direct interfacing with legacy logic and sensors without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable clock speed scaling |
| Flash Memory | 512 KB code flash + 8 KB data flash with background operation (BGO) and 1M rewrite cycles |
| RAM | 48 KB on-chip RAM with 210-nA data retention current at 4 KB usage |
| Power Supply | Single 1.6–5.5 V supply; supports HALT, STOP, and SNOOZE low-power modes |
| Analog Peripherals | 12-bit ADC (24 input channels), 8-bit DAC (2 outputs), 2-channel comparator with internal/external reference selection |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (up to 32 keys) and mutual-capacitance (8×8 matrix, up to 64 keys) |
| Timers & RTC | 16-bit timer array (12 channels), 32-bit interval timer, RTC with alarm/correction, and independent watchdog timer |
| Communication | UARTA (3 channels), IICA (4 channels), SAU (3–6 channels), simplified SPI (CSINote), and remote control receiver (1 channel) |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), industrial temperature grade (-40 to +105°C), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 / XT1 / EI121 | Primary crystal oscillator input | Connects to 32.768-kHz crystal for RTC and low-power subsystem clock; enables precise timekeeping and ultra-low-power STOP mode operation |
| P122 / X2 / XT2 / EXCLK / EXCLKS / EI122 | Secondary crystal oscillator input / external clock source | Supports main system clock via 1–20 MHz crystal or external clock signal; enables high-accuracy timing for real-time control loops |
| P30 / TSCAP / RTC1HZ / EI30 | Capacitive touch sense input / RTC output | Direct connection point for CTSU2L electrode; also provides 1-Hz square wave output from RTC for low-power time-synchronized wakeups |
| P60 / SCLA0 / CCD04 / EO60 | I²C bus clock / CTSU2L channel / general-purpose output | Configurable as I²C clock line for sensor communication or CTSU2L channel for touch button scanning-reducing BOM count in HMI designs |
| P137 / INTP0 | External interrupt input | Dedicated edge-sensitive interrupt pin for fast response to safety-critical events (e.g., emergency stop, fault detection) with minimal latency |
| VDD / VSS | Main power supply / ground | Single 1.6–5.5 V supply domain; decoupling required per datasheet (REGC capacitor 0.47–1 µF to VSS) for stable low-power operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous operations (e.g., ADC sampling → compare → GPIO toggle) without CPU, RAM, or flash activation-cutting average system power by >90% in periodic sensing applications |
| Logic and Event Link Controller (ELCL) | Hardware routing of 21 peripheral event signals (e.g., ADC end-of-conversion → DTC trigger → UART transmit enable) eliminates software overhead and interrupt latency in deterministic control paths |
| Capacitive Touch Sensing Unit (CTSU2L) | Self- and mutual-capacitance support with built-in noise cancellation enables robust touch buttons/sliders in noisy industrial environments without external ICs or firmware filtering |
| Data Flash Background Operation (BGO) | Allows full CPU execution from code flash while rewriting data flash-enabling seamless firmware parameter updates, logging, or calibration storage during real-time operation |
| Dual-Voltage I/O Compatibility | Select pins support 1.8 V, 2.5 V, or 3.0 V logic levels directly-simplifying interface to mixed-voltage sensor arrays, displays, and legacy controllers without discrete level shifters |
| High-Accuracy On-Chip Oscillators | ±1.0% accuracy (1.8–5.5 V, -40 to +85°C) across 1–32 MHz range reduces need for external crystals in cost-sensitive applications while maintaining timing integrity |
Applications
| Smart Energy Meters | Industrial HMI Panels |
|---|---|
Use Scenario: Residential and commercial electricity meters requiring tamper-resistant data logging, real-time tariff calculation, and secure communication over PLC or RF modules. IC Role / Device Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, encrypted data flash storage, and UART/IICA-based communication stacks. Use Value: 512 KB flash accommodates dual-bank firmware for safe OTA updates; 210-nA RAM retention preserves meter state during brownouts; CTSU2L enables sealed front-panel touch controls. | Use Scenario: Local operator interfaces on PLC-controlled machinery, featuring pushbuttons, status LEDs, and segmented LCDs in harsh factory environments. IC Role / Device Role: Dedicated HMI processor handling capacitive touch decoding, LED dimming via PWM, LCD segment driving, and isolated UART communication with host PLC. Use Value: SNOOZE mode autonomously scans touch keys every 100 ms while CPU sleeps-extending battery life in portable service tools; ELCL links touch event → LED blink → UART alert without CPU wake-up. |
| Condition Monitoring Sensors | Building Automation Controllers |
Use Scenario: Wireless vibration/temperature sensors mounted on motors or HVAC compressors, transmitting predictive maintenance data via BLE or Sub-GHz radios. IC Role / Device Role: Sensor fusion hub aggregating ADC readings from accelerometers, thermistors, and humidity sensors; performing FFT preprocessing and threshold-triggered radio wake-up. Use Value: 12-bit ADC with internal 1.48 V reference ensures stable measurement accuracy across voltage and temperature; RTC alarm wakes CPU only when scheduled sampling window opens-minimizing active time. | Use Scenario: DIN-rail-mounted controllers managing lighting, HVAC, and access control in commercial buildings using BACnet MS/TP or KNX protocols. IC Role / Device Role: Protocol gateway translating Modbus RTU (RS-485) to BACnet/IP over Ethernet, with local logic for occupancy-based scheduling and daylight harvesting. Use Value: Multiple UARTA channels support simultaneous RS-485 master/slave operation; 48 KB RAM buffers protocol translation tables and schedule rules; industrial temp grade ensures reliability in unconditioned electrical closets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLK3CFA#AA0 | Same 64-pin LQFP package and -40 to +105°C rating, but with 384 KB code flash, 32 KB RAM, and identical peripheral set | Targeted at cost-optimized designs where firmware size < 384 KB and RAM usage ≤ 32 KB suffices-e.g., simpler HVAC controllers without advanced scheduling logic | Select when BOM cost reduction is prioritized and full 512 KB flash headroom is unnecessary; retains pin compatibility and identical toolchain support |
| R7F100GMJ3CFA#AA0 | 80-pin LQFP variant with same 512 KB flash, 48 KB RAM, and extended peripheral count (e.g., +2 UARTA channels, +4 ADC inputs) | Suitable for applications requiring additional I/O for multi-sensor arrays, expanded display interfaces, or redundant communication ports-e.g., advanced building gateways | Choose when design requires ≥64 GPIO, >24 ADC channels, or extra UART/IICA instances; requires PCB layout change due to larger footprint and pin count |
Compared with R7F100GLK3CFA#AA0, the R7F100GLL3CFA#AA0 provides 128 KB more flash and 16 KB more RAM for complex firmware and data buffering-critical for OTA update resilience and real-time analytics. Versus R7F100GMJ3CFA#AA0, it trades pin count and peripheral expansion for compactness and lower system-level EMI in space-constrained industrial enclosures.
Availability
R7F100GLL3CFA#AA0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, condition monitoring, and building automation applications requiring stable component supply, long-term lifecycle assurance, and industrial temperature compliance.
Supply support for R7F100GLL3CFA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line is engineered for ultra-low-power, cost-sensitive industrial and consumer applications-emphasizing energy efficiency, integrated analog peripherals, and hardware-accelerated autonomous operation to reduce system-level complexity and BOM cost.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GLL3CFA#AA0?
The R7F100GLL3CFA#AA0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator, with guaranteed operation across its full 1.6–5.5 V supply range. At 32 MHz, the minimum instruction execution time is 0.03125 µs. The device maintains functional integrity down to 1.6 V, enabling battery-powered operation with single-cell LiFePO₄ or two-cell alkaline sources without voltage regulation.
Does the R7F100GLL3CFA#AA0 support hardware-based encryption or secure boot features?
The R7F100GLL3CFA#AA0 does not integrate dedicated cryptographic accelerators or secure boot ROM. It provides flash memory block erase/write prohibition as a basic security feature to prevent unauthorized firmware modification, but lacks AES, SHA, or public-key acceleration. For secure firmware authentication, external secure elements or software-based libraries running on its RL78 core are required-though performance will be limited compared to dedicated crypto MCUs.
How many capacitive touch channels does the CTSU2L unit support on the R7F100GLL3CFA#AA0, and what configurations are possible?
The CTSU2L unit on the R7F100GLL3CFA#AA0 supports up to 32 self-capacitance channels (one per pin) or an 8×8 mutual-capacitance matrix (64 keys) using shared TX/RX pin resources. Configuration is fully software-defined via register settings; no external components are needed beyond electrode traces. The unit includes built-in noise cancellation and auto-calibration-enabling reliable touch detection in electrically noisy industrial settings without firmware tuning.
Can the R7F100GLL3CFA#AA0 operate from a 32.768-kHz watch crystal alone, and what functions remain active in that mode?
Yes-the R7F100GLL3CFA#AA0 can run exclusively from the 32.768-kHz crystal connected to P121/P122, enabling ultra-low-power STOP mode operation. In this configuration, the RTC continues counting with alarm capability, the SNOOZE mode sequencer remains functional for autonomous peripheral triggering, and selected GPIO pins retain state. However, the CPU, flash, RAM, and most peripherals (ADC, UART, etc.) are disabled until awakened by RTC alarm, external interrupt, or pin event.
What debug interface options are available for the R7F100GLL3CFA#AA0 during development and field programming?
The R7F100GLL3CFA#AA0 supports on-chip debugging via the dedicated TOOL0 (pin P40) and TOOLRxD/TOOLTxD (pins P11/P12) signals, compatible with Renesas E2 studio and CS+ IDEs using standard E2 Lite or E2 emulator hardware. It also supports self-programming via UARTA or IICA interfaces using Renesas Flash Development Toolkit (FDT), enabling field firmware updates without JTAG probes-ideal for sealed industrial enclosures where physical debug access is unavailable.
R7F100GLL3CFA#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 54
- 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 12x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GLL3CFA#AA0 FAQ
1.How can I place an order for R7F100GLL3CFA#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GLL3CFA#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 R7F100GLL3CFA#AA0 reliable?
The price and inventory of R7F100GLL3CFA#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GLL3CFA#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GLL3CFA#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GLL3CFA#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GLL3CFA#AA0?
R7F100GLL3CFA#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GLL3CFA#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 R7F100GLL3CFA#AA0?
For technical support, including R7F100GLL3CFA#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GLL3CFA#AA0 requirements.
6.How does Aetrix verify that R7F100GLL3CFA#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GLL3CFA#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 R7F100GLL3CFA#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GLL3CFA#AA0?
All R7F100GLL3CFA#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GLL3CFA#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 R7F100GLL3CFA#AA0 part is unused and in its original packaging.
Return procedure for R7F100GLL3CFA#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GLL3CFA#AA0 Tags
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