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Renesas R7F100GBJ3CFP#AA0
- Part No.:
- R7F100GBJ3CFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7F100GBJ3CFP#AA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:678
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Product details
Overview
R7F100GBJ3CFP#AA0 from Renesas is an RL78/G23 32-bit ultra-low-power MCU with 256 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V. It integrates a capacitive touch sensing unit (CTSU2L), 16-bit TAU timers (12 channels), UARTA/UART/LIN (4 channels), I2C (6 channels), and a 12-bit ADC (16 channels), targeting battery-powered industrial HMI and sensor node applications.
For engineers reviewing the R7F100GBJ3CFP#AA0 datasheet, R7F100GBJ3CFP#AA0 pinout, R7F100GBJ3CFP#AA0 application, or R7F100GBJ3CFP#AA0 equivalent, key selection criteria include its 32-pin LQFP-0.8 mm package, -40 to +105°C industrial temperature grade, SNOOZE mode sequencer for autonomous low-power sensing, and integrated CTSU2L supporting up to 32 self-capacitance keys without CPU intervention.
Technical Context
The R7F100GBJ3CFP#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 management includes HALT, STOP, and SNOOZE modes - the latter enabled by a dedicated sequencer executing up to 32 preconfigured commands (e.g., ADC sampling, CTSU scan, comparison) without waking the CPU or accessing flash/RAM.
Peripheral integration centers on event-driven operation via the Event Link Controller (ELCL), which routes signals between peripherals (e.g., timer overflow → ADC trigger → interrupt) without software overhead. The CTSU2L unit operates independently using internal charge-transfer logic, while the Data Flash supports background operation (BGO) for concurrent code execution during 1M-cycle write endurance writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC with 3-stage pipeline; enables deterministic real-time response and ultra-low active current (41 µA/MHz). |
| Memory | 256 KB code flash (2 KB blocks), 8 KB data flash (1M rewrite cycles), 24 KB RAM; supports secure block protection and BGO. |
| Power Range | 1.6–5.5 V supply; enables direct battery operation (e.g., 2×AA, LiSOCl₂) without external regulators. |
| Low-Power Modes | STOP mode (210 nA RAM retention), SNOOZE mode (sub-µA autonomous peripheral sequencing); eliminates need for external wake controllers. |
| ADC | 12-bit resolution, 16-channel input, internal 1.48 V reference and temperature sensor; enables precision analog monitoring with no external components. |
| CTSU2L | Capacitive Touch Sensing Unit supporting 32-key self-capacitance or 64-key mutual-capacitance matrix; operates at VDD = 1.8–5.5 V with built-in noise rejection. |
| Timers | 12×16-bit TAU channels, 1×32-bit interval timer, RTC with alarm/correction; provides flexible timing for motor control, PWM, and time-stamped events. |
Pinout & Package
Package: 32-pin plastic LQFP (7 × 7 mm, 0.80-mm pitch), industrial-grade (C suffix), tray packaging (#AA0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Analog input / UARTA TX | 12-bit ADC channel ANI17; configurable as TxD1 for LIN-compliant communication in automotive diagnostics. |
| P01 | Analog input / UARTA RX | 12-bit ADC channel ANI16; dual-function as RxD1 with hardware LIN break detection support. |
| P10–P15 | Serial interface I/O | Support SCK00/SI00/SO00 (SPI), SCK20/SI20/SO20 (UARTA), and SCK11/SI11/SO11 (SAU) - enabling simultaneous multi-protocol connectivity. |
| P20–P23 | Analog front-end | Four dedicated ADC inputs (ANI0–ANI3) with AVREFP/AVREFM references; supports ratiometric sensor measurements and differential acquisition. |
| P30 | RTC & touch sense | Provides RTC 1 Hz output and TSCAP for CTSU2L oscillator; enables ultra-low-power timekeeping and touch wake-up from STOP mode. |
| P60/P61 | I²C interface | SCLA0/SDAA0 pins with programmable slew rate and noise filtering; compatible with standard and fast-mode I²C (up to 400 kHz). |
| RESET | System reset | Dedicated reset pin with internal POR and dual voltage detectors (LVD0/LVD1); ensures reliable startup across wide VDD range. |
| VDD/VSS | Power rails | Single 1.6–5.5 V supply; decoupling via REGC capacitor required for stable internal regulator operation. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step sequences (e.g., ADC→compare→GPIO toggle) autonomously; reduces average system power by >90% vs. CPU polling. |
| Capacitive Touch Sensing Unit (CTSU2L) | Hardware-accelerated touch scanning with built-in noise cancellation; supports 32 self-capacitance keys with <10 µA active current per key. |
| Data Flash Background Operation (BGO) | Permits full CPU execution from code flash while rewriting data flash; enables over-the-air firmware updates without service interruption. |
| Event Link Controller (ELCL) | Configurable hardware routing between 21 peripheral events (e.g., timer match → ADC start → DMA transfer); eliminates ISR latency and CPU load. |
| Ultra-Low-Power STOP Mode | 210 nA RAM retention at 25°C; retains full 24 KB RAM state with wake-up in <3.5 µs via external interrupt or RTC alarm. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: A wall-mounted HVAC controller with 12 capacitive touch keys, temperature/humidity sensing, and RS-485 communication. IC Role / Device Role / Timing Role: R7F100GBJ3CFP#AA0 serves as main controller: CTSU2L scans keys autonomously in SNOOZE mode; 12-bit ADC reads analog sensors; UARTA drives isolated RS-485 transceiver. Use Value: 210 nA STOP mode extends 2×AA battery life to >5 years; integrated LIN support simplifies compliance with building automation protocols. | Use Scenario: Wireless vibration monitor on rotating machinery, sampling accelerometer data every 10 seconds and transmitting via UART to LoRa module. IC Role / Device Role / Timing Role: R7F100GBJ3CFP#AA0 acts as sensor aggregator: TAU timers trigger periodic ADC conversions; ELCL chains ADC end → DMA → UART transmit; RTC schedules wake-ups. Use Value: Sub-µA SNOOZE operation minimizes quiescent current; BGO allows logging calibration data to data flash during transmission without freezing measurement. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter Front-End |
Use Scenario: DIN-rail mounted digital I/O expansion module with 8 opto-isolated inputs and 4 open-drain outputs, communicating via Modbus RTU. IC Role / Device Role / Timing Role: R7F100GBJ3CFP#AA0 functions as protocol engine: UARTA handles Modbus framing; GPIOs drive opto-LEDs; watchdog timer ensures fail-safe output shutdown. Use Value: 1.6 V minimum VDD enables operation with degraded 3.3 V rail; dual LVDs provide configurable brown-out detection for robust field deployment. | Use Scenario: Residential smart meter measuring voltage/current via shunt/transformer, calculating kWh, and reporting via PLC or NB-IoT. IC Role / Device Role / Timing Role: R7F100GBJ3CFP#AA0 performs metrology preprocessing: 12-bit ADC samples analog front-end; RTC timestamps readings; CTSU2L enables tamper-detection touch cover. Use Value: Internal 1.48 V reference eliminates external voltage reference IC; 24 KB RAM buffers 72 hours of 1-second samples before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GBH3CFP#AA0 | 128 KB code flash, 16 KB RAM, same 32-pin LQFP package and peripheral set. | Targeted at cost-sensitive designs with smaller firmware footprint and reduced RAM requirements. | Select when application firmware fits within 128 KB and does not require >16 KB runtime RAM. |
| R7F100GCJ3CFP#AA0 | 192 KB code flash, 20 KB RAM, identical package and temperature grade; adds 2 more ADC channels (18 total). | Suitable for analog-intensive applications requiring additional sensor inputs without changing PCB layout. | Choose when expanding sensor count beyond 16 channels while retaining same footprint and thermal profile. |
Compared with R7F100GBH3CFP#AA0, the R7F100GBJ3CFP#AA0 provides 128 KB more code flash and 8 KB more RAM for complex protocol stacks or larger UI assets; versus R7F100GCJ3CFP#AA0, it adds 4 KB RAM and 64 KB flash at the cost of two ADC channels - favoring firmware scalability over analog channel count.
Availability
R7F100GBJ3CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, PLC I/O modules, and energy meter front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7F100GBJ3CFP#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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G23 product line delivers true ultra-low-power MCUs optimized for battery-operated industrial controls, human-machine interfaces, and sensor edge devices where energy efficiency, integration, and long-term supply stability are critical.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GBJ3CFP#AA0?
The R7F100GBJ3CFP#AA0 supports a maximum CPU clock of 32 MHz using the high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.03125 µs. This timing is guaranteed across the full industrial temperature range (-40 to +105°C) and 1.6–5.5 V supply, enabling deterministic real-time performance for time-critical control loops.
Does the R7F100GBJ3CFP#AA0 support LIN bus communication, and if so, how is it implemented?
Yes, the R7F100GBJ3CFP#AA0 supports LIN bus communication through its UARTA peripheral. UARTA includes dedicated LIN break detection, sync field generation, and checksum calculation hardware - all compliant with LIN 2.2A and SAE J2602 standards. The R7F100GBJ3CFP#AA0 can operate as either LIN master or slave without external transceiver support for basic diagnostics, though a LIN transceiver (e.g., BD41600FV-M) is required for physical layer compliance.
How many capacitive touch keys can the R7F100GBJ3CFP#AA0 support, and what is the typical current consumption during touch scanning?
The R7F100GBJ3CFP#AA0 supports up to 32 self-capacitance keys using its integrated CTSU2L unit. In active scanning mode, typical current consumption is less than 10 µA per key at 100 Hz scan rate. When combined with SNOOZE mode, the entire touch subsystem operates autonomously at sub-µA average current - enabling multi-year battery life in always-on touch interfaces without CPU involvement.
What debug interface options are available for the R7F100GBJ3CFP#AA0, and is SWD supported?
The R7F100GBJ3CFP#AA0 supports on-chip debugging via the single-wire debug (SWD) interface using the TOOL0 and TOOLRxD/TOOLTxD pins. It is fully compatible with Renesas E2 studio and CS+ IDEs, and supports breakpoints, watchpoints, memory inspection, and flash programming. No external debug probe is required beyond a standard SWD adapter (e.g., E2 Lite), and debug functionality remains available even in low-power STOP mode with appropriate wake configuration.
Can the R7F100GBJ3CFP#AA0 execute code while writing to its data flash memory?
Yes, the R7F100GBJ3CFP#AA0 supports Background Operation (BGO) for data flash. While rewriting data flash sectors (e.g., logging sensor history), the CPU can simultaneously execute instructions from code flash memory without interruption. This capability is essential for real-time applications such as firmware updates or continuous data acquisition, and is enabled via dedicated BGO control registers in the data flash control module.
R7F100GBJ3CFP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/G23
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- 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:
- 27
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x8/10b/12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GBJ3CFP#AA0 FAQ
1.How can I place an order for R7F100GBJ3CFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GBJ3CFP#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 R7F100GBJ3CFP#AA0 reliable?
The price and inventory of R7F100GBJ3CFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GBJ3CFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GBJ3CFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GBJ3CFP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GBJ3CFP#AA0?
R7F100GBJ3CFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GBJ3CFP#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 R7F100GBJ3CFP#AA0?
For technical support, including R7F100GBJ3CFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GBJ3CFP#AA0 requirements.
6.How does Aetrix verify that R7F100GBJ3CFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GBJ3CFP#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 R7F100GBJ3CFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GBJ3CFP#AA0?
All R7F100GBJ3CFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GBJ3CFP#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 R7F100GBJ3CFP#AA0 part is unused and in its original packaging.
Return procedure for R7F100GBJ3CFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GBJ3CFP#AA0 Tags
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