Renesas R7F100GGJ3CFB#AA0
- Part No.:
- R7F100GGJ3CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7F100GGJ3CFB#AA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F100GGJ3CFB#AA0 from Renesas is an RL78/G23 48-pin industrial-grade 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 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 real-time clock with alarm-targeting battery-powered industrial HMI and sensor node applications.
For engineers reviewing the R7F100GGJ3CFB#AA0 datasheet, R7F100GGJ3CFB#AA0 pinout, R7F100GGJ3CFB#AA0 application, or R7F100GGJ3CFB#AA0 equivalent, key selection criteria include its LFQFP-48 package, -40°C to +105°C temperature grade, 256 KB flash/24 KB RAM memory configuration, and support for SNOOZE mode sequencer and ELCL event linking without CPU intervention.
Technical Context
The R7F100GGJ3CFB#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its power management includes HALT, STOP, and SNOOZE modes, with wake-up from STOP in under 4 µs and SNOOZE sequencer enabling up to 32 low-power background processes using 21 command types.
Peripheral integration includes a 12-bit A/D converter (26 channels), dual 8-bit D/A outputs, two comparators with selectable reference sources, and flexible serial interfaces: up to 10 I²C/Simplified I²C channels, 6 UARTA (LIN-capable), and 8 CSI (SPI-compatible) channels-all configurable via peripheral I/O redirection register (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Operating Voltage | 1.6–5.5 V - supports direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters |
| Flash/RAM Capacity | 256 KB code flash / 8 KB data flash / 24 KB RAM - enables complex firmware with background data logging and OTA update capability |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention - extends battery life in always-on sensor nodes beyond 10 years |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual capacitance (8×8 matrix, 64 keys) - eliminates external touch controller IC |
| Real-Time Clock | RTC with calendar (1 sec–99 years), alarm interrupt, and clock correction - provides accurate timekeeping without external crystal |
| Temperature Range | -40°C to +105°C - qualified for industrial motor control, PLC I/O modules, and factory automation edge devices |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.50-mm pitch), lead-free, RoHS-compliant, industrial-grade (3C marking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | Analog input / UARTA TX/RX | Supports TS26/TS27 touch sense inputs or full-duplex UARTA communication at up to 2 Mbps |
| P10–P17 | Serial interface I/O (SCK/SI/SO/SCL/SDA) | Configurable as up to 8 CSI, 6 UARTA, or 10 IICA channels - enables multi-sensor daisy-chaining or LIN bus master |
| P20–P25 | Analog input / AVREFP/AVREFM / CTSU electrodes | 12-bit ADC inputs with internal 1.48 V reference and temperature sensor; dedicated pins for high-noise immunity touch sensing |
| P30–P31 | TSCAP / RTC1HZ / PCLBUZ0 | Direct connection to touch sensor capacitor; provides 1 Hz RTC output for low-power wake scheduling; drives piezo buzzer without external driver |
| P60–P62 | IICA SCLA/SDAA / CCD06 | Hardware I²C master/slave with clock stretching support; CCD06 enables additional capacitive sensing channel |
| RESET, REGC, VDD, VSS | Power/reset management | REGC requires 0.47–1 µF capacitor to VSS for stable on-chip regulator operation; RESET is Schmitt-triggered with POR and LVD |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step low-power sequences (e.g., periodic ADC sampling + threshold compare + GPIO toggle) without waking CPU, flash, or RAM |
| Event Link Controller (ELCL) | Hardware logic links peripheral events (e.g., timer overflow → ADC trigger → DMA transfer) to eliminate software overhead and jitter |
| Background Data Flash Rewrite | Permits concurrent code execution from flash while rewriting 8 KB data flash - enables seamless firmware parameter updates during operation |
| Controlled Current Drive Ports | 6–8 pins deliver programmable 2–12 mA sink/source - directly drive LEDs or small solenoids without external drivers |
| Capacitive Touch with Noise Immunity | CTSU2L supports spread-spectrum modulation and shield electrode drive - achieves >60 dB noise rejection in EMI-heavy industrial environments |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: 4.3-inch resistive/capacitive touchscreen panel in factory floor operator terminal with ambient temperature up to +85°C. IC Role / Device Role / Timing Role: Main controller executing GUI, managing touch input via CTSU2L, driving display interface, and communicating via UARTA to PLC. Use Value: Integrated 64-key mutual-capacitance touch eliminates external controller; SNOOZE mode reduces average current to <5 µA during idle screen timeout. | Use Scenario: Battery-powered vibration/temperature monitor mounted on rotating machinery in predictive maintenance system. IC Role / Device Role / Timing Role: Data acquisition MCU sampling accelerometer and thermistor every 10 seconds, storing logs in data flash, and transmitting via UARTA to gateway. Use Value: 210 nA data retention preserves 24 KB RAM state for 10+ years on coin cell; RTC alarm triggers precise wake-up without external timer. |
| Programmable Logic Controller I/O Module | Energy Meter Communication Hub |
Use Scenario: DIN-rail mounted digital I/O expansion module interfacing with 24 V DC sensors and actuators in industrial control cabinet. IC Role / Device Role / Timing Role: Isolated field-side interface controller handling opto-coupled inputs, driving MOSFET outputs, and reporting status over RS-485 via UARTA. Use Value: Controlled-current drive ports directly sink 12 mA for LED status indicators; ELCL links timer overflow to ADC conversion for synchronized analog monitoring. | Use Scenario: Sub-metering hub aggregating pulse outputs from water/gas meters and transmitting via NB-IoT modem using UARTA interface. IC Role / Device Role / Timing Role: Low-power host MCU managing meter pulse counting (via TAU input capture), time-stamping with RTC, and buffering data before modem transmission. Use Value: 256 KB flash stores protocol stacks and firmware; background data flash rewrite allows remote parameter updates without interrupting pulse logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLJ3CFB#AA0 | 512 KB flash / 48 KB RAM / same 48-pin LFQFP package / identical peripheral set | Higher memory capacity suits larger protocol stacks or local data caching in gateway applications | Select when firmware size exceeds 256 KB or extended RAM for multi-threaded RTOS operation is required |
| R7F100GMJ3CFB#AA0 | 256 KB flash / 24 KB RAM / 80-pin LFQFP package / adds 4 extra UARTA and 2 extra IICA channels | Additional serial interfaces support multi-protocol metering (DLMS, M-Bus, Modbus) in utility infrastructure | Choose when more than 6 UARTA or 10 IICA channels are needed, accepting larger PCB footprint |
Compared with R7F100GLJ3CFB#AA0 and R7F100GMJ3CFB#AA0, the R7F100GGJ3CFB#AA0 offers optimal balance of memory, peripheral count, and compact 48-pin footprint for cost-sensitive industrial HMI and sensor edge nodes where flash >256 KB or >6 serial channels are unnecessary.
Availability
R7F100GGJ3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R7F100GGJ3CFB#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 16-bit MCUs optimized for industrial automation, building control, and battery-operated sensing - combining ultra-low active/standby current with rich analog and human-interface peripherals.
FAQ
What is the maximum operating frequency and corresponding current consumption for R7F100GGJ3CFB#AA0?
The R7F100GGJ3CFB#AA0 operates up to 32 MHz using the high-speed on-chip oscillator with ±1.0% accuracy. At this frequency and VDD = 3.3 V, typical active current is 41 µA per MHz - resulting in ~1.31 mA total. In STOP mode, current drops to 0.23 µA (typ.) with RTC and 4 KB RAM retained.
Does R7F100GGJ3CFB#AA0 support hardware-based capacitive touch sensing without external components?
Yes, R7F100GGJ3CFB#AA0 integrates the CTSU2L capacitive sensing unit supporting both self-capacitance (up to 32 keys) and mutual capacitance (8×8 matrix, 64 keys). It requires only external electrodes and optional shield traces - no external RC networks, op-amps, or dedicated touch ASICs are needed.
How many serial communication interfaces does R7F100GGJ3CFB#AA0 provide, and are they independently configurable?
R7F100GGJ3CFB#AA0 provides up to 10 IICA (I²C-compatible), 6 UARTA (LIN-capable), and 8 CSI (SPI-compatible) channels. All are independently configurable via the Peripheral I/O Redirection Register (PIOR), allowing dynamic pin assignment without hardware redesign - e.g., assigning UARTA0 to P10/P11 and UARTA1 to P14/P15 simultaneously.
What is the data flash endurance and write/erase methodology for R7F100GGJ3CFB#AA0?
R7F100GGJ3CFB#AA0 includes 8 KB of data flash rated for 1,000,000 erase/write cycles (typ.). It supports background operation (BGO): CPU executes code from main flash while data flash is rewritten. Erase is block-wise (2 KB), and security features prohibit accidental erasure of protected blocks.
Can R7F100GGJ3CFB#AA0 operate reliably in high-EMI industrial environments, and what features mitigate noise?
Yes, R7F100GGJ3CFB#AA0 is qualified for industrial use (-40°C to +105°C) and includes multiple EMI mitigation features: CTSU2L spread-spectrum modulation and shield electrode drive (>60 dB noise rejection), Schmitt-trigger inputs on all GPIO, independent voltage detectors (LVD0/LVD1), and hardware ELCL to replace noise-prone software-interrupt chains with deterministic peripheral linking.
R7F100GGJ3CFB#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 40
- 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 10x8/10b/12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GGJ3CFB#AA0 FAQ
1.How can I place an order for R7F100GGJ3CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GGJ3CFB#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 R7F100GGJ3CFB#AA0 reliable?
The price and inventory of R7F100GGJ3CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GGJ3CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GGJ3CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GGJ3CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
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R7F100GGJ3CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GGJ3CFB#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 R7F100GGJ3CFB#AA0?
For technical support, including R7F100GGJ3CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GGJ3CFB#AA0 requirements.
6.How does Aetrix verify that R7F100GGJ3CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GGJ3CFB#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 R7F100GGJ3CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GGJ3CFB#AA0?
All R7F100GGJ3CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GGJ3CFB#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 R7F100GGJ3CFB#AA0 part is unused and in its original packaging.
Return procedure for R7F100GGJ3CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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