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Renesas R7F100GJN3CFA#AA0
- Part No.:
- R7F100GJN3CFA#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R7F100GJN3CFA#AA0.pdf
- Description:
- IC MCU 16BIT 768KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
R7F100GJN3CFA#AA0 from Renesas is a 52-pin, industrial-grade 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 +105°C ambient temperature. It integrates capacitive touch sensing (CTSU2L), 16-bit TAU timers, RTC, UARTA/IICA/SAU interfaces, and ultra-low-power STOP/SNOOZE modes-ideal for battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F100GJN3CFA#AA0 datasheet, R7F100GJN3CFA#AA0 pinout, R7F100GJN3CFA#AA0 application, or R7F100GJN3CFA#AA0 equivalent, key selection criteria include its 52-pin LFQFP-0.65mm package, 256 KB flash/24 KB RAM memory configuration, C-grade industrial temperature rating, and integrated CTSU2L capacitive sensing unit for touch-button interfaces.
Technical Context
The R7F100GJN3CFA#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 low-power background processes-including ADC sampling, timer comparisons, and CTSU2L scans-without CPU wake-up.
Peripheral integration includes dual-voltage I/O (1.8/2.5/3.0 V compatible), ELCL event linking for autonomous peripheral coordination, and BGO-capable data flash rewriting. The device uses a dedicated REGC capacitor for internal regulator stability and supports hardware CRC calculation and flash shield window security.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Flash Memory | 256 KB code flash with 2 KB block size, erase/write protection, and self-programming support |
| RAM | 24 KB on-chip RAM with 210-nA data retention current at 4 KB active retention |
| Operating Voltage | 1.6–5.5 V single-supply operation enabling direct connection to Li-ion, 3.3 V, or 5 V rails |
| Temperature Range | -40 to +105°C (industrial C-grade), qualified per AEC-Q100 Class 3 requirements |
| Capacitive Sensing | CTSU2L unit supporting 32-key self-capacitance or 64-key mutual-capacitance matrix without external components |
| Low-Power Modes | HALT (0.23 µA), STOP (0.32 µA), and SNOOZE (1.2 µA typical) with fast wake-up from STOP in ≤3.5 µs |
Pinout & Package
Package: 52-pin plastic LQFP (10 × 10 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 / XT1 / EI121 | Primary crystal oscillator input | Accepts 32.768 kHz crystal for RTC or main system clock; supports internal trimming |
| P122 / X2 / XT2 / EXCLK / EI122 | Crystal oscillator output / external clock input | Drives external crystal; also accepts external clock up to 20 MHz for precise timing source |
| REGC | Internal regulator bypass capacitor terminal | Requires 0.47–1 µF ceramic capacitor to VSS for stable 1.25 V core voltage regulation |
| P60 / EO60 / CCD04 / SCLA0 | I²C clock line / CTSU electrode / GPIO | Configurable as I²C clock (SCLA0), CTSU2L electrode (CCD04), or general-purpose output |
| P30 / VCOUT0 / TSCAP / EI30 / INTP3 / RTC1HZ / SCK11 / SCL11 | Touch sense reference / RTC output / serial interface | Provides 1 Hz RTC pulse, CTSU2L reference voltage, and dual-function SPI clock for SAU channel 11 |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.32 µA consumption with RAM retention, RTC running, and wake-up via 16 interrupt sources |
| SNOOZE mode sequencer (SMS) | Executes 32-step sequences (e.g., ADC→compare→CTSU→GPIO toggle) autonomously without CPU involvement |
| Capacitive Touch Sensing Unit (CTSU2L) | Single-pin self-capacitance (32 keys) or 8×8 mutual-capacitance (64 keys); no external RC components required |
| Data Flash Background Operation (BGO) | Enables full program execution from code flash while rewriting 8 KB data flash-critical for firmware-over-the-air updates |
| ELCL event linking | Hardware routing of 21 peripheral events (e.g., TAU overflow → ADC trigger → DMA request) without CPU overhead |
| Multi-voltage I/O compatibility | Ports configurable for 1.8 V, 2.5 V, or 3.0 V logic levels-enables direct interfacing with mixed-voltage peripherals |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled control panel for HVAC or PLC operator interface with backlight dimming and button feedback. IC Role / Device Role / Timing Role: Main controller executing touch scan (CTSU2L), PWM-driven LED dimming, UART communication to host MCU, and RTC-based scheduling. Use Value: 256 KB flash stores full GUI logic and firmware; 24 KB RAM buffers touch event queues; STOP mode extends battery life during idle periods. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality with wireless reporting. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor acquisition (ADC), digital signal processing, low-power wireless interface control, and periodic wake-up via RTC alarm. Use Value: SNOOZE mode sequencer autonomously triggers ADC conversion, compares thresholds, and wakes CPU only on alert-reducing average current to <2 µA. |
| Energy Metering Interfaces | Industrial Motor Control Panels |
Use Scenario: DIN-rail mounted energy monitor with isolated RS-485 communication and tamper detection. IC Role / Device Role / Timing Role: Data concentrator acquiring metering IC outputs (SPI/I²C), performing CRC validation, storing logs in data flash, and transmitting via UARTA with LIN protocol support. Use Value: 8 KB data flash with 1M-cycle endurance stores 30+ days of hourly energy logs; BGO allows logging during active measurement cycles. | Use Scenario: Local motor starter panel with pushbutton control, status LEDs, fault indication, and CAN bus diagnostics. IC Role / Device Role / Timing Role: Peripheral coordinator handling pushbutton debouncing (CTSU2L), LED PWM (TAU), fault monitoring (comparator), and CAN transceiver control (UARTA). Use Value: Dual comparator channels monitor overcurrent and overtemperature; controlled-current drive ports directly sink 20 mA for indicator LEDs-eliminating external drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLN3CFA#AA0 | 512 KB flash, 48 KB RAM, same 52-pin LQFP-0.65mm package and peripheral set | Supports larger firmware images and extended data buffering-suitable for OTA-upgradable field devices | Select when >256 KB flash or >24 KB RAM is required; identical pinout and software compatibility |
| R7F100GJK3CFA#AA0 | 192 KB flash, 20 KB RAM, same package and temperature grade | Lower memory footprint ideal for cost-sensitive, fixed-function controllers with minimal feature set | Choose for simpler applications where 256 KB flash is excessive-reduces BOM cost without layout change |
Compared with R7F100GJN3CFA#AA0, R7F100GLN3CFA#AA0 provides double flash/RAM for complex firmware and data logging, while R7F100GJK3CFA#AA0 reduces memory capacity by 25% to lower cost-both retain identical pinout, peripherals, and industrial temperature support.
Availability
R7F100GJN3CFA#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and energy metering interfaces requiring stable component supply across long production lifecycles.
Supply support for R7F100GJN3CFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line delivers true low-power performance for resource-constrained industrial and consumer applications-designed around ultra-low active current (41 µA/MHz), robust capacitive touch, and seamless integration of analog/mixed-signal peripherals.
FAQ
What is the maximum operating frequency of the R7F100GJN3CFA#AA0?
The R7F100GJN3CFA#AA0 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.03125 µs. External crystal or clock inputs up to 20 MHz are also supported for precision timing applications. The device maintains full functionality-including ADC, CTSU2L, and UART-across the entire 1.6–5.5 V supply range at this speed.
Does the R7F100GJN3CFA#AA0 support in-circuit debugging?
Yes, the R7F100GJN3CFA#AA0 includes full on-chip debugging capability via the on-chip debug interface (OCDS). It supports breakpoints, watchpoints, real-time variable monitoring, and flash programming through standard E2 emulator tools. Debug access is available using the TOOL0 and TOOLRxD/TOOLTxD pins in the 52-pin LQFP package, with no additional hardware required beyond a Renesas E2 or E2 Lite debugger.
How many capacitive touch channels does the R7F100GJN3CFA#AA0 support?
The R7F100GJN3CFA#AA0 integrates the CTSU2L capacitive touch sensing unit supporting up to 32 self-capacitance keys (one pin per key) or 64 mutual-capacitance keys (8 × 8 matrix). All sensing is performed internally with no external resistors or capacitors needed. The unit operates independently in STOP and SNOOZE modes, enabling ultra-low-power touch wake-up functionality.
What is the data flash endurance specification for the R7F100GJN3CFA#AA0?
The R7F100GJN3CFA#AA0 features 8 KB of data flash memory rated for 1,000,000 write/erase cycles (typical) with background operation (BGO) support. This allows concurrent program execution and data flash rewriting-essential for reliable firmware update storage, parameter logging, and calibration data retention in industrial applications.
Is the R7F100GJN3CFA#AA0 pin-compatible with other RL78/G23 52-pin variants?
Yes, all RL78/G23 52-pin variants-including R7F100GJN3CFA#AA0, R7F100GLN3CFA#AA0, and R7F100GJK3CFA#AA0-share identical pinout, package dimensions (10 × 10 mm LQFP, 0.65-mm pitch), and electrical characteristics. Firmware and PCB designs are fully interchangeable across these variants, enabling scalable memory selection without layout revision.
R7F100GJN3CFA#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 44
- Program Memory Size:
- 768KB (768K 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 12x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GJN3CFA#AA0 FAQ
1.How can I place an order for R7F100GJN3CFA#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GJN3CFA#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 R7F100GJN3CFA#AA0 reliable?
The price and inventory of R7F100GJN3CFA#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GJN3CFA#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GJN3CFA#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GJN3CFA#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GJN3CFA#AA0?
R7F100GJN3CFA#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GJN3CFA#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 R7F100GJN3CFA#AA0?
For technical support, including R7F100GJN3CFA#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GJN3CFA#AA0 requirements.
6.How does Aetrix verify that R7F100GJN3CFA#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GJN3CFA#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 R7F100GJN3CFA#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GJN3CFA#AA0?
All R7F100GJN3CFA#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GJN3CFA#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 R7F100GJN3CFA#AA0 part is unused and in its original packaging.
Return procedure for R7F100GJN3CFA#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GJN3CFA#AA0 Tags
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