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Renesas R7F100GAF3CSP#BA0
- Part No.:
- R7F100GAF3CSP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F100GAF3CSP#BA0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,680
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Product details
Overview
R7F100GAF3CSP#BA0 from Renesas is a 30-pin, industrial-grade RL78/G23 16-bit microcontroller with 96 KB code flash, 8 KB data flash, and 12 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), 10-bit ADC (up to 26 channels), and dual UART/I²C/SPI interfaces - deployed in battery-powered industrial HMI and sensor node applications.
For engineers reviewing the R7F100GAF3CSP#BA0 datasheet, R7F100GAF3CSP#BA0 pinout, R7F100GAF3CSP#BA0 application, or R7F100GAF3CSP#BA0 equivalent, key selection criteria include its LSSOP-30 package with 0.65-mm pitch, -40°C to +105°C industrial temperature rating, on-chip RTC with alarm, SNOOZE mode sequencer for autonomous low-power operation, and hardware ELCL for event-driven peripheral coordination without CPU intervention.
Technical Context
The R7F100GAF3CSP#BA0 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 wake-up from STOP in under 4 µs using internal oscillators.
Peripheral integration includes a 21-command SNOOZE mode sequencer (SMS) that executes up to 32 sequential operations autonomously, an Event Link Controller (ELCL) enabling direct signal routing between peripherals (e.g., timer output → ADC trigger), and a capacitive sensing unit (CTSU2L) supporting both self-capacitance (32 keys) and mutual-capacitance (8×8 matrix) configurations without CPU involvement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at ultra-low power. |
| Flash Memory | 96 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles for firmware updates and logging. |
| RAM | 12 KB on-chip RAM; retains full 4 KB at 210 nA in STOP mode for state preservation in energy harvesting systems. |
| Supply Voltage | 1.6–5.5 V single supply; eliminates need for external voltage regulators in multi-sensor nodes powered by coin cells or 3.3/5 V rails. |
| Operating Temperature | -40°C to +105°C (industrial grade); qualified for use in factory automation controllers and motor drive interfaces. |
| ADC Resolution | 10-bit SAR ADC with 26 input channels; includes internal 1.48 V reference and temperature sensor for calibration-free analog monitoring. |
| Capacitive Sensing | CTSU2L unit supporting 32 self-capacitance keys or 64 mutual-capacitance keys; operates down to 1.8 V with automatic noise cancellation. |
Pinout & Package
Package: 30-pin LSSOP (7.62 mm × 3.9 mm, 0.65-mm pitch), lead-free, RoHS-compliant, industrial temperature grade (3C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20 | A/D input / AVREFP | Analog voltage reference positive input; enables precise ratiometric measurements when used with internal 1.48 V reference. |
| P01 | A/D input / RxD1 | Shared analog input (ANI16) and UART1 receive; allows sensor data acquisition and serial telemetry over same pin with time-multiplexed configuration. |
| P00 | A/D input / TxD1 | Shared analog input (ANI17) and UART1 transmit; supports compact two-wire sensor interface with local ADC and upstream UART reporting. |
| P120 | A/D input / IVCMP1 | Current-sense comparator input; enables high-side current monitoring for load protection in industrial actuators. |
| P60/P61 | I²C bus (SCLA0/SDAA0) | Dedicated hardware I²C interface with clock stretching support; connects directly to EEPROMs, temperature sensors, or display drivers without bit-banging overhead. |
| P30 | TSCAP / RTC1HZ | Capacitive touch sense capacitor connection and real-time clock 1 Hz output; provides synchronized timing for touch polling and low-power wake-up events. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external supervisor ICs or manual reset buttons in ruggedized enclosures. |
| VDD/VSS | Power supply pins | Single 1.6–5.5 V supply; decoupling via REGC capacitor (0.47–1 µF to VSS) ensures stable operation across wide voltage and temperature range. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous operations (e.g., ADC sampling → compare → GPIO toggle) without CPU wake-up, reducing average system power by >90% in periodic sensing tasks. |
| Event Link Controller (ELCL) | Hardware routing of signals between peripherals (e.g., TAU output → ADC start); eliminates software interrupt latency and CPU loading in closed-loop control. |
| Capacitive Touch Unit (CTSU2L) | Supports self- and mutual-capacitance modes with built-in noise rejection; enables robust touch buttons/knobs in noisy industrial environments without external components. |
| Realtime Clock (RTC) | Full calendar (seconds to years) with alarm and clock correction; maintains accurate timekeeping during STOP mode using 32.768 kHz oscillator with ±20 ppm stability. |
| Low-Power Oscillators | High-speed (±1.0% @ 32 MHz), middle-speed (adjustable), and low-speed (32.768 kHz) on-chip oscillators; eliminates external crystals in cost-sensitive designs while meeting timing accuracy requirements. |
Applications
| Industrial Sensor Node | Smart Thermostat Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor node in HVAC ducts, transmitting data every 5 minutes via UART to gateway. IC Role / Device Role: Main controller handling sensor ADC reads, RTC-based scheduling, low-power wake-up, and UART transmission. Use Value: 210 nA STOP-mode current extends 2× AA battery life beyond 5 years; SNOOZE sequencer triggers ADC→RTC→UART sequence without CPU, minimizing active time. | Use Scenario: Touch-enabled wall-mounted thermostat with capacitive buttons, ambient sensor fusion, and display backlight control. IC Role / Device Role: HMI controller managing CTSU2L touch detection, 10-bit ADC for thermistor readings, and PWM for LED dimming. Use Value: Integrated CTSU2L supports 8+ robust touch keys at 1.8–5.5 V; on-chip 1.48 V reference enables accurate thermistor measurement without external precision references. |
| Programmable Logic Controller (PLC) I/O Module | Motor Drive Status Monitor |
Use Scenario: DIN-rail mounted digital I/O expansion module with 8-channel opto-isolated inputs and relay outputs, communicating via UART to main PLC. IC Role / Device Role: Isolation interface controller performing input debouncing, status polling, and UART command parsing. Use Value: ELCL links timer outputs to GPIO toggles for hardware-level input filtering; 10-bit ADC monitors supply rail health with internal reference, eliminating external monitoring ICs. | Use Scenario: Compact motor driver add-on board monitoring phase current, temperature, and fault flags, reporting via I²C to host MCU. IC Role / Device Role: Analog front-end and communication bridge with current-sense comparator (IVCMP1), thermal ADC, and I²C slave interface. Use Value: P120 pin serves as dedicated current-sense comparator input; integrated 32.768 kHz RTC enables time-stamped fault logging in STOP mode for predictive maintenance analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GBF3CNP#BA0 | 32-pin HWQFN, 96 KB flash, 12 KB RAM, same core/peripherals but adds N-ch open-drain I/O (6 V tolerant) and controlled-current drive ports. | Better suited for mixed-voltage interfacing (e.g., 3.3 V MCU ↔ 5 V sensors) and driving LEDs directly without external drivers. | Select when board layout requires smaller footprint (5×5 mm vs. 7.62×3.9 mm) or higher-drive I/O capability is needed. |
| R7F100GAG3CSP#BA0 | Same 30-pin LSSOP package, but 128 KB flash, 16 KB RAM, and enhanced peripheral set including additional UART channel and 16-bit timer channels. | Enables more complex firmware (e.g., Modbus RTU stack + sensor fusion) and higher-resolution timing control in motion feedback loops. | Select when future firmware scalability or additional timer/communication resources are required without changing PCB layout. |
Compared with R7F100GBF3CNP#BA0 and R7F100GAG3CSP#BA0, the R7F100GAF3CSP#BA0 offers optimal balance of industrial temperature rating, ultra-low power, and capacitive touch capability in the smallest 30-pin LSSOP form factor - ideal for space-constrained, battery-operated HMI and sensor edge nodes where BOM cost and PCB area are critical.
Availability
R7F100GAF3CSP#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, PLC I/O modules, and motor drive monitors requiring stable component supply across extended product lifecycles.
Supply support for R7F100GAF3CSP#BA0 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 HMI applications - integrating capacitive touch, rich analog peripherals, and autonomous low-power modes to replace discrete analog + MCU combinations.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GAF3CSP#BA0?
The R7F100GAF3CSP#BA0 supports a maximum CPU frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. This timing is achievable across the full industrial temperature range (-40°C to +105°C) and supply voltage (1.6–5.5 V), enabling deterministic real-time response in control loops and communication stacks.
Does the R7F100GAF3CSP#BA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GAF3CSP#BA0 integrates the CTSU2L capacitive touch sensing unit. It supports self-capacitance mode (up to 32 independent keys using single pins) and mutual-capacitance mode (up to 64 keys in 8×8 matrix configuration). Both modes operate from 1.8–5.5 V and include hardware noise cancellation, allowing reliable touch detection in electrically noisy industrial environments without external components.
What low-power modes does the R7F100GAF3CSP#BA0 offer, and what is the typical current draw in each?
The R7F100GAF3CSP#BA0 offers HALT, STOP, and SNOOZE modes. In HALT mode, current is ~1.2 µA (typ.) with RAM retention. In STOP mode, it draws 210 nA (typ.) while retaining 4 KB of RAM. SNOOZE mode enables peripheral operation (e.g., ADC sampling, timer counting) with CPU halted, consuming ~1.8 µA (typ.) - all verified at -40°C to +105°C and 1.6–5.5 V supply.
Can the R7F100GAF3CSP#BA0 perform background data flash writes while executing code from program memory?
Yes, the R7F100GAF3CSP#BA0 supports Background Operation (BGO) for data flash memory. While running application code from code flash, the MCU can simultaneously rewrite the 8 KB data flash memory - essential for secure firmware updates, parameter storage, and event logging without interrupting real-time operation.
What is the function of the REGC pin on the R7F100GAF3CSP#BA0, and how must it be connected?
The REGC pin on the R7F100GAF3CSP#BA0 is the regulator capacitor terminal for the internal voltage regulator. It must be connected to VSS via a 0.47 µF to 1 µF ceramic capacitor, placed as close as possible to the pin. This capacitor stabilizes the internal regulated voltage, ensuring reliable operation of analog peripherals (ADC, CTSU2L, comparators) and low-power modes across temperature and supply variations.
R7F100GAF3CSP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G23
- Packaging:
- Tray
- 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:
- 25
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GAF3CSP#BA0 FAQ
1.How can I place an order for R7F100GAF3CSP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GAF3CSP#BA0 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 R7F100GAF3CSP#BA0 reliable?
The price and inventory of R7F100GAF3CSP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GAF3CSP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GAF3CSP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GAF3CSP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GAF3CSP#BA0?
R7F100GAF3CSP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GAF3CSP#BA0 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 R7F100GAF3CSP#BA0?
For technical support, including R7F100GAF3CSP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GAF3CSP#BA0 requirements.
6.How does Aetrix verify that R7F100GAF3CSP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GAF3CSP#BA0 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 R7F100GAF3CSP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GAF3CSP#BA0?
All R7F100GAF3CSP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GAF3CSP#BA0, 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 R7F100GAF3CSP#BA0 part is unused and in its original packaging.
Return procedure for R7F100GAF3CSP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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