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Renesas R7F100GAJ3CSP#BA0
- Part No.:
- R7F100GAJ3CSP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F100GAJ3CSP#BA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,665
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Product details
Overview
R7F100GAJ3CSP#BA0 from Renesas is a 30-pin, 256-KB code flash, 24-KB RAM RL78/G23 16-bit microcontroller operating from 1.6 to 5.5 V, featuring 41-µA/MHz active current, 210-nA data retention, and integrated capacitive touch sensing for industrial HMI applications.
For engineers reviewing the R7F100GAJ3CSP#BA0 datasheet, R7F100GAJ3CSP#BA0 pinout, R7F100GAJ3CSP#BA0 application, or R7F100GAJ3CSP#BA0 equivalent, this device supports ultra-low-power operation with STOP-mode wakeup, SNOOZE sequencer offloading, and hardware-accelerated CTSU2L for robust touch interface design in space-constrained industrial controls.
Technical Context
The R7F100GAJ3CSP#BA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes dedicated hardware blocks for capacitive sensing (CTSU2L), event linking (ELCL), and background data flash rewriting (BGO).
It integrates a 32-bit interval timer, real-time clock with alarm and correction, 16-bit TAU with up to 16 channels, dual D/A converters (8-bit, 0–VDD output), and dual comparators with selectable internal/external reference - all operating within its -40°C to +105°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash Memory | 256 KB code flash with 2-KB block erase, security lock, and self-programming with boot swapping |
| RAM & Data Flash | 24 KB on-chip RAM; 8 KB data flash with 1M-cycle endurance and background operation (BGO) |
| Power Efficiency | 41 µA/MHz active current; 210 nA data retention current for full 4 KB RAM retention |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct battery or wide-input industrial rail interfacing |
| Temperature Range | -40°C to +105°C (industrial grade, marked "C" in part number) |
| Capacitive Sensing | CTSU2L unit supporting 32-key self-capacitance or 64-key mutual-capacitance matrix (up to 8×8) |
Pinout & Package
Package: 30-pin LSSOP (7.62 mm, 0.65-mm pitch), lead-free, RoHS-compliant, tray-packaged (#BA0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20 | A/D input / AVREFP | Analog voltage reference positive input and primary ADC channel 0; critical for precision analog measurement accuracy |
| P00/P01 | ADC inputs / UARTA TXD1/RxD1 | Dual-function pins supporting 10-/12-bit ADC sampling and full-duplex UART communication for sensor telemetry |
| P30 | TSCAP / RTC1HZ / EI30 | Dedicated touch-sensing capacitor input with built-in RTC 1-Hz output for low-power wake scheduling |
| P60/P61 | SCLA0 / SDAA0 | I²C bus interface pins with internal pull-up capability; support standard/fast-mode I²C peripheral control |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts external debounced pushbutton or supervisor IC assertion |
| VDD/VSS | Power supply rails | Single 1.6–5.5 V supply; requires local 0.1-µF ceramic decoupling and REGC-to-VSS 0.47–1 µF capacitor |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 preconfigured low-power operations (e.g., ADC sampling, comparison, GPIO toggle) without CPU wake, reducing average system power |
| Capacitive Touch Unit (CTSU2L) | Hardware-accelerated touch sensing with noise immunity algorithms, supporting both self- and mutual-capacitance configurations for robust button/slider design |
| Event Link Controller (ELCL) | Configurable logic routing between peripherals (e.g., trigger ADC conversion on timer match or GPIO edge), eliminating CPU polling overhead |
| Background Data Flash Rewrite | Enables firmware parameter updates or logging while executing application code from main flash - no interrupt latency or code stall required |
| Ultra-Low-Power STOP Mode | Wakes in ≤3.8 µs from STOP with full register retention; supports multiple wake sources including RTC alarm, key interrupt, and external pin edge |
Applications
| Industrial Control Panel | Smart Sensor Node |
|---|---|
Use Scenario: Standalone HMI panel for HVAC or PLC operator interface with tactile buttons and LED indicators. IC Role / Device Role / Timing Role: Main controller managing capacitive touch detection, LED PWM dimming via TAU, UART communication with host PLC, and RTC-based schedule control. Use Value: 210-nA data retention enables battery-backed operation for >1 year; CTSU2L tolerates ±15% supply variation and 10 V/m ESD noise per IEC 61000-4-2. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality with periodic wireless upload. IC Role / Device Role / Timing Role: System-on-chip integrating 12-bit ADC for analog sensors, RTC for timed wake/sleep cycles, and UART/I²C for sensor hub interfacing. Use Value: 41-µA/MHz active current and STOP-mode wake in <4 µs enable 10-year coin-cell life at 1-sample-per-minute duty cycle. |
| Energy Meter Interface | Appliance Motor Control |
Use Scenario: Tamper-resistant front-end for residential electricity meter with pulse counting, LCD drive, and secure parameter storage. IC Role / Device Role / Timing Role: Secure data acquisition controller using data flash BGO for encrypted tariff updates, hardware CRC for firmware integrity, and key interrupt for tamper detection. Use Value: Code flash security lock prevents unauthorized reprogramming; 8 KB data flash with 1M rewrite cycles supports 20+ years of daily tariff log storage. | Use Scenario: Compact motor driver board for BLDC fan or pump with speed feedback, thermal monitoring, and soft-start control. IC Role / Device Role / Timing Role: Real-time motor commutation supervisor using TAU for precise 6-step timing, comparator for overcurrent detection, and DAC for analog reference generation. Use Value: Dual 8-bit DAC outputs provide stable 0–VDD references for current-sense amplifiers; 16-bit TAU channels deliver <1% timing jitter at 20 kHz PWM frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GBJ3CNP#BA0 | Same RL78/G23 core, 32-pin HWQFN package, identical 256 KB/24 KB memory, but adds exposed die pad and higher pin count for expanded I/O | Supports additional UART/I²C channels and more ADC inputs; suited for designs requiring >30 I/O or thermal performance headroom | Select when PCB layout allows QFN footprint and extra GPIOs or analog inputs are needed beyond LSSOP limits |
| R7F100GCJ3CLA#AC0 | 36-pin WFLGA package, same memory, but operates at -40°C to +85°C (consumer grade); lacks REGC pin and some high-temp qualified peripherals | Targeted for cost-sensitive consumer appliances where extended temperature range is unnecessary | Choose only for non-industrial environments; not rated for 105°C operation or industrial EMC conditions |
Compared with R7F100GBJ3CNP#BA0 and R7F100GCJ3CLA#AC0, the R7F100GAJ3CSP#BA0 uniquely balances industrial temperature rating, compact LSSOP packaging, and full CTSU2L/touch capability - making it optimal for space-constrained, thermally demanding HMI designs without QFN assembly requirements.
Availability
R7F100GAJ3CSP#BA0 is available at Aetrix Electronics and suitable for industrial control panels, smart sensor nodes, energy meter interfaces, and appliance motor control systems requiring stable component supply across long production lifecycles.
Supply support for R7F100GAJ3CSP#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 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 HMIs, sensor nodes, and battery-operated equipment - combining ultra-low active/standby current with integrated capacitive touch and robust peripheral sets.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GAJ3CSP#BA0?
The R7F100GAJ3CSP#BA0 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. The device also supports ultra-low-speed operation at 32.768 kHz (30.5 µs per instruction) for RTC and low-power background tasks - both modes are selectable in real time without reset.
Does the R7F100GAJ3CSP#BA0 support hardware debugging, and what interface is used?
Yes, the R7F100GAJ3CSP#BA0 supports on-chip debugging via the single-wire debug interface using the TOOL0 (pin 5) and TOOLRxD/TOOLTxD (pins 25/24) signals. It is compatible with Renesas E2 emulator and CS+ IDE, enabling full breakpoint, watchpoint, and memory inspection capabilities without requiring additional debug pins beyond the standard LSSOP footprint.
How many analog input channels does the R7F100GAJ3CSP#BA0 support, and what resolutions are available?
The R7F100GAJ3CSP#BA0 supports up to 26 analog input channels with configurable resolution of 8-, 10-, or 12-bit. For the 30-pin LSSOP package, 19 physical pins are designated for analog functions (ANI0–ANI19), including AVREFP/AVREFM references and internal temperature sensor. Resolution selection is software-configurable per conversion, with typical INL of ±1 LSB at 12-bit mode.
Can the R7F100GAJ3CSP#BA0 operate from a 1.8-V supply, and what features remain functional at that voltage?
Yes, the R7F100GAJ3CSP#BA0 operates across 1.6 V to 5.5 V, so 1.8 V is fully supported. At 1.8 V, all core functions remain active: 32-MHz operation is maintained (with ±1.0% oscillator accuracy), CTSU2L touch sensing operates down to 1.8 V, and the 12-bit ADC achieves full specification with internal 1.48-V reference. However, controlled-current drive ports are disabled below 2.7 V per datasheet Section 23.3.
What is the purpose of the REGC pin on the R7F100GAJ3CSP#BA0, and how must it be connected?
The REGC pin on the R7F100GAJ3CSP#BA0 is the regulator capacitor terminal for the internal voltage regulator. It must be connected to VSS via an external capacitor of 0.47 µF to 1.0 µF (X7R ceramic recommended). This capacitor stabilizes the internal LDO output and is mandatory for reliable operation - omission causes unpredictable reset behavior, flash corruption, or failure to exit STOP mode.
R7F100GAJ3CSP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- 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:
- 25
- 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:
R7F100GAJ3CSP#BA0 FAQ
1.How can I place an order for R7F100GAJ3CSP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GAJ3CSP#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 R7F100GAJ3CSP#BA0 reliable?
The price and inventory of R7F100GAJ3CSP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GAJ3CSP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GAJ3CSP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GAJ3CSP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GAJ3CSP#BA0?
R7F100GAJ3CSP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GAJ3CSP#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 R7F100GAJ3CSP#BA0?
For technical support, including R7F100GAJ3CSP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GAJ3CSP#BA0 requirements.
6.How does Aetrix verify that R7F100GAJ3CSP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GAJ3CSP#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 R7F100GAJ3CSP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GAJ3CSP#BA0?
All R7F100GAJ3CSP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GAJ3CSP#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 R7F100GAJ3CSP#BA0 part is unused and in its original packaging.
Return procedure for R7F100GAJ3CSP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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