Renesas R7F101G6G4CSP#CA1
- Part No.:
- R7F101G6G4CSP#CA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R7F101G6G4CSP#CA1.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G24 128K
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F101G6G4CSP#CA1 from Renesas is a 20-pin RL78/G24 16-bit microcontroller with 128 KB code flash, 12 KB RAM, and 4 KB data flash, operating at up to 48 MHz with 50 µA/MHz ultra-low-power consumption. It integrates FAA for motor control acceleration, 12-bit ADC (23 channels), dual DAC, four comparators, programmable gain amplifier, DALI-2 interface, and timers including KB30–KB32 for PFC and multi-phase power conversion - deployed in digital LED drivers and industrial lighting systems.
For engineers reviewing the R7F101G6G4CSP#CA1 datasheet, R7F101G6G4CSP#CA1 pinout, R7F101G6G4CSP#CA1 application, or R7F101G6G4CSP#CA1 equivalent, key selection criteria include its LSSOP-20 package with 0.65-mm pitch, –40°C to +125°C industrial temperature grade (4C), integrated DALI-2 transceiver support, and FAA-accelerated real-time motor/power control execution.
Technical Context
The R7F101G6G4CSP#CA1 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.02083 µs (48 MHz) to 30.5 µs (32.768 kHz). Its Flexible Application Accelerator (FAA) provides dedicated 32-bit signed arithmetic with limit operations and shared 32-byte memory between CPU and FAA for deterministic motor control loops.
Peripheral integration includes a 12-bit ADC with simultaneous sampling on two channels using separate S&H circuits, dual 8-/10-bit DACs with realtime output, four independent comparators with selectable reference sources (D/A or external), and KB30–KB32 complementary PWM timers featuring 651-ps average resolution via dithering at 96 MHz - enabling high-fidelity digital power supply regulation and DALI-2-compliant lighting control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; supports 0.02083 µs min. instruction time at 48 MHz |
| Flash Memory | 128 KB code flash with 2 KB block size, security lock, and self-programming with boot swapping |
| RAM | 12 KB on-chip RAM + 4 KB FAA code RAM + 2 KB FAA data RAM |
| ADC | 12-bit resolution, 23 input channels, two independent sample-and-hold circuits for simultaneous sampling |
| DAC | Two 8-/10-bit DACs; output range 0 V to VDD; realtime update capability |
| Timers | KB30–KB32 complementary PWM timers with 651-ps average resolution (dithering at 96 MHz), PFC and multi-phase control support |
| Communications | DALI-2 interface (single channel), I²C/SMBus/PMbus, UART/LIN, CSI (SPI-compatible), and simplified I²C |
| Operating Range | 1.6 V to 5.5 V supply; –40°C to +125°C ambient (4C industrial grade) |
Pinout & Package
Package: 20-pin LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), lead-free, RoHS-compliant, magazine packaging (#CA1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P01 | ANI30 / IVCMP2 / PGAI2 / TO00 / TRJIO0 / TRGCLKB / RxD1 | Analog input ch.30, comparator input 2, PGA input 2, TAU output 00, jitter trigger I/O, trigger clock B, DALI/Rx |
| P00 | ANI29 / IVCMP1 / PGAI1 / TI00 / TRGCLKA / TxD1 | Analog input ch.29, comparator input 1, PGA input 1, TAU input 00, trigger clock A, DALI/Tx |
| P120 | ANI19 / IVCMP0 / PGAI0 / TRGIDZ / TRGTRG | Analog input ch.19, comparator input 0, PGA input 0, trigger index Z, trigger trigger |
| P40 | TOOL0 | On-chip debugging tool interface pin (SWD/JTAG) |
| RESET | Active-low reset input | Hardware reset with internal POR and LVD supervision |
| P137 | INTP0 | External interrupt pin 0 with configurable edge sensitivity |
| P122 | EXCLK / EXCLKS / INTP20 / TO00 | External clock input/output, interrupt 20, TAU output 00 |
| REGC | Regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS for internal regulator stability |
| VSS | Ground | Primary analog/digital ground reference |
| VDD | Power supply | Single 1.6–5.5 V supply for entire device |
| P20–P23 | ANI0–ANI3 / AVREFP / AVREFM / ANO0 / ANO1 / PGAI4 / PGAGND | Four analog inputs, ADC reference voltage pins, two analog outputs, PGA input 4 and ground |
| P10–P15 | Multi-function I/O with CSI, UART, I²C, DALI, buzzer, VCOUT, TKBO, SO/SI/SDA/SCL | Configurable peripheral I/O supporting DALI-2 physical layer, serial comms, and timer-controlled outputs |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Application Accelerator (FAA) | Offloads 32-bit signed multiply/add/subtract/limit operations from CPU, enabling deterministic motor control loop execution |
| DALI-2 Interface | Integrated hardware support for DALI-2 digital lighting protocol with dedicated Rx/Tx pins (P00/P01) and timing compliance |
| KB30–KB32 Complementary Timers | Enable high-resolution (651-ps avg.) gate drive for PFC and multi-phase inverters with forced stop, dithering, and interleaving |
| Simultaneous Sampling ADC | Two independent sample-and-hold circuits allow concurrent acquisition of two analog signals (e.g., phase current/voltage) for accurate power calculation |
| Ultra-Low-Power Operation | 50 µA/MHz active current, STOP mode with high-speed wakeup, and SNOOZE mode for background ADC/DAC operation |
| Industrial Temperature Grade | Rated for –40°C to +125°C ambient (4C), qualified for harsh environments in lighting ballasts and industrial power supplies |
Applications
| Digital LED Driver | Industrial Lighting Control |
|---|---|
Use Scenario: Constant-current LED driver with dimming, thermal foldback, and fault protection in commercial luminaires. IC Role / Device Role / Timing Role: Main controller executing DALI-2 command parsing, PWM generation for LED current regulation, and real-time thermal monitoring via ADC. Use Value: Integrated DALI-2 interface and KB30–KB32 timers eliminate external transceivers and gate-driver ICs, reducing BOM count and layout area. | Use Scenario: Smart streetlight node with adaptive dimming, grid communication, and predictive maintenance. IC Role / Device Role / Timing Role: System-on-chip managing DALI-2 network interface, sensor fusion (temp/current/light), and secure firmware updates over PMBus. Use Value: FAA-accelerated math enables real-time power factor correction and harmonic analysis without CPU overhead. |
| Digital Power Supply | Motor-Controlled HVAC Actuator |
Use Scenario: 24-V DC-DC converter for building automation systems with PMBus telemetry and overvoltage protection. IC Role / Device Role / Timing Role: Digital power controller implementing voltage-mode control loop with 12-bit ADC feedback and dual DAC for reference generation. Use Value: Simultaneous-sampling ADC ensures precise input/output current/voltage measurement for cycle-by-cycle current limiting. | Use Scenario: Brushless DC motor actuator for damper control in HVAC air handling units. IC Role / Device Role / Timing Role: Motor controller running field-oriented control (FOC) with FAA-accelerated Clarke/Park transforms and KB30–KB32 for 3-phase PWM generation. Use Value: 651-ps average PWM resolution enables smooth low-speed torque delivery and acoustic noise reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F101G6E4CSP#CA1 | Same package and pinout; 64 KB code flash (vs. 128 KB), same 12 KB RAM and peripherals | Suitable for cost-sensitive lighting designs with smaller firmware footprint and no OTA update requirement | Select when application firmware fits within 64 KB and full FAA usage is not required |
| R7F101G7G4CNP#AA1 | 24-pin HWQFN package; adds X1/X2 crystal oscillator pins; same 128 KB flash, 12 KB RAM, and peripheral set | Better suited for designs requiring external crystal for higher timing accuracy or additional GPIOs | Choose when crystal-based timing stability is critical or board space allows QFN and extra I/O is needed |
Compared with R7F101G6E4CSP#CA1, the R7F101G6G4CSP#CA1 provides double code flash capacity for complex DALI-2 stack + safety diagnostics, while R7F101G7G4CNP#AA1 trades LSSOP compactness for crystal support and expanded I/O - making the R7F101G6G4CSP#CA1 optimal for space-constrained, high-integration digital LED drivers.
Availability
R7F101G6G4CSP#CA1 is available at Aetrix Electronics and suitable for digital LED drivers, industrial lighting controllers, DALI-2-compliant ballasts, and digital power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7F101G6G4CSP#CA1 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/G24 product line targets high-efficiency, real-time control applications in digital lighting, motor drives, and power conversion - combining ultra-low-power operation with hardware accelerators for DALI-2, PFC, and FOC.
FAQ
What is the maximum operating frequency and power efficiency of the R7F101G6G4CSP#CA1?
The R7F101G6G4CSP#CA1 operates at up to 48 MHz with a typical active current of 50 µA/MHz. This efficiency is achieved through Renesas' proprietary low-power process and dynamic voltage scaling, enabling battery-backed or energy-harvested lighting nodes to sustain operation for years without recharge. The R7F101G6G4CSP#CA1 maintains full peripheral functionality-including ADC, DAC, and DALI-2-at all supported frequencies.
Does the R7F101G6G4CSP#CA1 support DALI-2 protocol natively?
Yes, the R7F101G6G4CSP#CA1 includes dedicated hardware-level support for DALI-2, with pins P00 (DALITxD0) and P01 (DALIRxD0) assigned for differential transmit/receive, plus integrated timing logic compliant with IEC 62386-102. No external transceiver is required, and the firmware stack can leverage the built-in UART with configurable baud rate and framing to meet DALI-2 electrical and protocol requirements.
What are the key differences between the R7F101G6G4CSP#CA1 and R7F101G6E4CSP#CA1?
The R7F101G6G4CSP#CA1 and R7F101G6E4CSP#CA1 share identical LSSOP-20 packaging, pinout, RAM (12 KB), data flash (4 KB), and peripheral sets-including FAA, DALI-2, KB30–KB32 timers, and ADC/DAC. The sole difference is code flash capacity: 128 KB in the R7F101G6G4CSP#CA1 versus 64 KB in the R7F101G6E4CSP#CA1. This makes the R7F101G6G4CSP#CA1 suitable for applications requiring larger firmware images, such as those with integrated DALI-2 stack, safety certification code, or field-upgradable features.
Can the R7F101G6G4CSP#CA1 operate across the full industrial temperature range?
Yes, the R7F101G6G4CSP#CA1 is rated for –40°C to +125°C ambient operation (4C grade), validated per Renesas' industrial qualification standards. It includes dual voltage detectors (LVD0/LVD1), POR circuitry, and temperature-compensated oscillators to ensure reliable startup and runtime behavior across this range - critical for outdoor LED drivers and enclosed industrial power modules where thermal derating is essential.
How does the Flexible Application Accelerator (FAA) in the R7F101G6G4CSP#CA1 improve motor control performance?
The FAA in the R7F101G6G4CSP#CA1 executes 32-bit signed multiply, add, subtract, and limit operations independently of the main CPU, with 32-byte shared memory for low-latency data exchange. In motor control, this offloads Clarke/Park transforms, PI loop calculations, and PWM dead-time compensation - reducing CPU load by >40% and enabling deterministic sub-microsecond loop execution. The R7F101G6G4CSP#CA1's KB30–KB32 timers then apply the FAA-generated results directly to complementary PWM outputs with 651-ps average resolution.
R7F101G6G4CSP#CA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G24
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 48MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 15
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b/12b; D/A 3x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F101G6G4CSP#CA1 FAQ
1.How can I place an order for R7F101G6G4CSP#CA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F101G6G4CSP#CA1 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 R7F101G6G4CSP#CA1 reliable?
The price and inventory of R7F101G6G4CSP#CA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F101G6G4CSP#CA1 is usually 5 days.
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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 R7F101G6G4CSP#CA1?
For technical support, including R7F101G6G4CSP#CA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F101G6G4CSP#CA1 requirements.
6.How does Aetrix verify that R7F101G6G4CSP#CA1 is sourced from the original manufacturer or authorized distributors?
All R7F101G6G4CSP#CA1 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 R7F101G6G4CSP#CA1 meets industry standards.
7.What is the process for return or replacement of R7F101G6G4CSP#CA1?
All R7F101G6G4CSP#CA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7F101G6G4CSP#CA1, 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 R7F101G6G4CSP#CA1 part is unused and in its original packaging.
Return procedure for R7F101G6G4CSP#CA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F101G6G4CSP#CA1 Tags

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