Renesas R7F100GBG3CFP#HA0
- Part No.:
- R7F100GBG3CFP#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7F100GBG3CFP#HA0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F100GBG3CFP#HA0 from Renesas is an RL78/G23 32-bit ultra-low-power MCU with 128 KB code flash, 16 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V. It integrates a capacitive touch sensing unit (CTSU2L), 16-bit timer array (TAU), RTC, 10-bit ADC (26 channels), and multiple serial interfaces including UARTA, IICA, and SAU - deployed in industrial human-machine interface and sensor node applications.
For engineers reviewing the R7F100GBG3CFP#HA0 datasheet, R7F100GBG3CFP#HA0 pinout, R7F100GBG3CFP#HA0 application, or R7F100GBG3CFP#HA0 equivalent, key selection criteria include its 32-pin LQFP-0.8mm package, -40°C to +105°C industrial temperature grade, SNOOZE mode sequencer for autonomous low-power operation, and hardware-accelerated CTSU2L supporting up to 64-key mutual-capacitance touch panels.
Technical Context
The R7F100GBG3CFP#HA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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 41 µA/MHz active current and 210 nA data retention for 4 KB RAM.
Peripheral integration includes a Logic and Event Link Controller (ELCL) enabling configurable event routing between peripherals, a Data Transfer Controller (DTC) supporting chain transfers, and a dedicated SNOOZE Mode Sequencer (SMS) capable of executing 32 sequential commands without CPU intervention - ideal for periodic sensor sampling and wake-up-triggered processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash Memory | 128 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles |
| RAM | 16 KB on-chip RAM with 210-nA data retention for 4 KB at STOP mode |
| Operating Voltage | 1.6–5.5 V single supply; enables direct battery operation (e.g., 2×AA, LiSOCl₂, or 3.3 V rail) |
| Temperature Range | -40°C to +105°C (industrial grade, marked "C" in part number) |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix = 64 keys) |
| ADC | 10-bit resolution, 26-channel analog input with internal 1.48 V reference and temperature sensor |
| Timers | 16-bit TAU (16 channels), 32-bit interval timer, RTC (alarm/correction), and watchdog timer |
Pinout & Package
Package: 32-pin plastic LQFP (7 mm × 7 mm, 0.80-mm pitch), industrial-grade (C), embossed tape packaging (#HA0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ADC input / UARTA transmit | Primary TxD1 signal; also serves as ANI17 analog input and TI00 timer input |
| P01 | ADC input / UARTA receive | Primary RxD1 signal; also serves as ANI16 analog input and EO01 output |
| P10–P17 | Serial interface I/O | Configurable SAU/SCK/SI/SO pins for UARTA, IICA, and SAU channels; support tool interface (TOOLRxD/TOOLTxD) |
| P20–P23 | Analog input / CTSU2L | ANI0–ANI3 inputs with AVREFP/AVREFM references; support CTSU2L self/mutual capacitance sensing |
| P30–P31 | RTC / Touch / Buzzer | P30 provides RTC1HZ output and TSCAP for touch sensing; P31 supports TS01 and PCLBUZ0 buzzer control |
| P50–P51 | ADC / Serial interface | TS00/TS01 touch inputs; SI11/SDA11/SDA21/SDA00 for multi-channel I²C and UART communication |
| P60–P62 | I²C / CTSU2L | SCLA0/SDAA0 for IICA0; CCD04–CCD06 for CTSU2L electrode drive and sensing |
| RESET | System reset input | Active-low asynchronous reset with internal pull-up; compatible with external reset ICs |
| VDD / VSS | Power supply | Dual power pins support decoupling; REGC requires 0.47–1 µF capacitor to VSS |
| X1 / X2 | Crystal oscillator | Supports 32.768 kHz crystal for RTC or high-accuracy clock source; adjustable low-speed oscillator |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed commands autonomously - enables periodic sensor polling and wake-up decision logic without CPU or RAM activation |
| Capacitive Touch Unit (CTSU2L) | Hardware-accelerated touch engine supporting both self-capacitance (32 keys) and mutual-capacitance (64 keys) with noise immunity and auto-tuning |
| Data Flash Background Operation (BGO) | Allows full program execution from code flash while rewriting data flash - critical for firmware-over-the-air (FOTA) and parameter logging |
| Event Link Controller (ELCL) | Configurable hardware routing between peripherals (e.g., ADC trigger → DTC → memory) eliminates CPU overhead for deterministic real-time data flow |
| Ultra-Low-Power STOP Mode | 210-nA retention for 4 KB RAM with fast wake-up (<;6 µs); supports wake-up via GPIO, RTC alarm, or peripheral interrupt |
| On-Chip Oscillators | High-accuracy ±1.0% 32 MHz on-chip oscillator (1.8–5.5 V, -20–+85°C); plus selectable middle/low-speed options for flexible clock domain partitioning |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface for PLCs, HVAC controllers, and panel meters with backlight dimming and button feedback. IC Role / Device Role: Main controller managing capacitive touch decoding, display timing, serial communication to host MCU, and local LED/buzzer feedback. Use Value: CTSU2L hardware acceleration reduces CPU load by >70% vs. software-based touch; SNOOZE mode extends battery life in wireless variants. | Use Scenario: Battery-powered environmental sensor (temp/humidity/pressure) transmitting data via UART or I²C to gateway every 10 seconds. IC Role / Device Role: Sensor aggregator with integrated ADC, RTC-driven periodic wake-up, and low-power serial interface handling. Use Value: 210-nA STOP mode retention enables >5-year battery life on CR2032; BGO allows logging sensor history during active measurement. |
| Energy Monitoring Meters | Appliance Control Units |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse counting, and RS-485 communication. IC Role / Device Role: System-on-chip managing metrology interface (pulse input), real-time billing timestamping, secure data storage, and isolated comms. Use Value: Hardware RTC with alarm and correction ensures accurate time-of-use billing; 128 KB flash accommodates dual-bank firmware for safe updates. | Use Scenario: Washing machine main control board requiring motor commutation signals, water level sensing, and user interface feedback. IC Role / Device Role: Central MCU coordinating PWM motor drivers, ADC-based pressure/temperature sensing, buzzer alerts, and capacitive keypad. Use Value: Integrated 16-bit TAU timers generate precise motor phase timing; CTSU2L enables waterproof front-panel touch controls. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GBH3CFP#HA0 | Same 32-pin LQFP package and industrial temp grade, but with 192 KB code flash and 20 KB RAM | Required where larger firmware footprint or extended data buffering is needed (e.g., OTA update staging or multi-sensor fusion) | Select when future firmware growth or additional algorithm complexity demands >128 KB flash |
| R7F100GLG3CFA#HA0 | 64-pin LQFP variant with 512 KB flash, 48 KB RAM, and expanded peripheral count (e.g., 10 IICA channels vs. 4) | Suitable for complex HMI with multiple displays, Ethernet/Wi-Fi co-processors, or multi-protocol gateways | Choose only if pin count, memory, or peripheral expansion beyond 32-pin constraints is required |
Compared with R7F100GBH3CFP#HA0 and R7F100GLG3CFA#HA0, the R7F100GBG3CFP#HA0 delivers optimal balance of cost, size, and capability for compact industrial controllers - offering full CTSU2L, RTC, and BGO functionality in the smallest industrial-grade LQFP package without over-provisioning flash or I/O.
Availability
R7F100GBG3CFP#HA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and energy monitoring meters requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for R7F100GBG3CFP#HA0 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 targets ultra-low-power industrial and consumer applications requiring robust capacitive touch, secure firmware updates, and extended battery life - designed specifically for cost-sensitive, space-constrained edge devices.
FAQ
What is the maximum operating frequency and voltage range supported by the R7F100GBG3CFP#HA0?
The R7F100GBG3CFP#HA0 operates at up to 32 MHz using its high-accuracy on-chip oscillator and supports a wide supply voltage range of 1.6 V to 5.5 V. This enables direct compatibility with common battery chemistries (e.g., 2×AA alkaline, LiSOCl₂) and standard 3.3 V or 5 V system rails without external regulators - a key enabler for low-cost, low-power industrial designs.
Does the R7F100GBG3CFP#HA0 support hardware-accelerated capacitive touch sensing?
Yes, the R7F100GBG3CFP#HA0 integrates the CTSU2L (Capacitive Touch Sensing Unit Level 2) hardware engine, supporting both self-capacitance (up to 32 keys) and mutual-capacitance (8×8 matrix = 64 keys) configurations. It includes built-in noise cancellation, auto-calibration, and low-power operation - eliminating the need for external touch controllers in industrial HMI and appliance applications.
What are the key low-power modes available on the R7F100GBG3CFP#HA0 and their typical current consumption?
The R7F100GBG3CFP#HA0 offers HALT (41 µA/MHz active), STOP (210 nA for 4 KB RAM retention), and SNOOZE modes. In STOP mode, it retains RAM contents and wakes in under 6 µs via GPIO, RTC, or peripheral interrupt. The SNOOZE mode sequencer executes autonomous tasks (e.g., ADC sampling, comparison) without CPU or flash activation - reducing average system current in periodic sensor applications.
Can the R7F100GBG3CFP#HA0 perform firmware updates in the field without interrupting operation?
Yes, the R7F100GBG3CFP#HA0 supports background operation (BGO) for data flash, allowing full program execution from code flash while rewriting data flash memory. Combined with boot swapping and flash shield window features, this enables safe, atomic firmware-over-the-air (FOTA) updates - critical for remote industrial sensors and connected appliances requiring zero-downtime maintenance.
What serial communication interfaces are integrated into the R7F100GBG3CFP#HA0?
The R7F100GBG3CFP#HA0 integrates three UARTA channels (with LIN support), four IICA (I²C-compatible) channels, and up to eight SAU channels configurable as CSI, UART, or I²C. These interfaces support simultaneous use - for example, one UARTA for host communication, one IICA for sensor readout, and SAU for display SPI - all managed with minimal CPU overhead via DTC and ELCL.
R7F100GBG3CFP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/G23
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 27
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K 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:
R7F100GBG3CFP#HA0 FAQ
1.How can I place an order for R7F100GBG3CFP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GBG3CFP#HA0 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 R7F100GBG3CFP#HA0 reliable?
The price and inventory of R7F100GBG3CFP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GBG3CFP#HA0 is usually 5 days.
3.What payment methods are accepted for R7F100GBG3CFP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GBG3CFP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
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R7F100GBG3CFP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GBG3CFP#HA0 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 R7F100GBG3CFP#HA0?
For technical support, including R7F100GBG3CFP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GBG3CFP#HA0 requirements.
6.How does Aetrix verify that R7F100GBG3CFP#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GBG3CFP#HA0 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 R7F100GBG3CFP#HA0 meets industry standards.
7.What is the process for return or replacement of R7F100GBG3CFP#HA0?
All R7F100GBG3CFP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GBG3CFP#HA0, 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 R7F100GBG3CFP#HA0 part is unused and in its original packaging.
Return procedure for R7F100GBG3CFP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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