Renesas R7F101G6G2DSP#CA1
- Part No.:
- R7F101G6G2DSP#CA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R7F101G6G2DSP#CA1.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G24 128K
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F101G6G2DSP#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 active current. It integrates FAA accelerator, 12-bit ADC (23 channels), dual DAC, four comparators, programmable gain amplifier, DALI-2 interface, and timers for motor control and digital power supply applications.
For engineers reviewing the R7F101G6G2DSP#CA1 datasheet, R7F101G6G2DSP#CA1 pinout, R7F101G6G2DSP#CA1 application, or R7F101G6G2DSP#CA1 equivalent, key selection criteria include its LSSOP-20 package, –40°C to +85°C industrial temperature grade, integrated DALI-2 transceiver, FAA-based real-time control acceleration, and low-power STOP/SNOOZE modes for lighting and embedded power systems.
Technical Context
The R7F101G6G2DSP#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 multiply/accumulate, limit operation, and shared 32-byte memory with the CPU for deterministic motor control loops.
It features a 12-bit ADC with simultaneous sampling on two channels using separate S&H circuits, dual 8-/10-bit DACs with realtime output, four comparators with selectable reference (internal DAC or external), and a single programmable gain amplifier - all optimized for closed-loop analog signal conditioning in lighting ballasts and DC-DC controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; supports 48 MHz max clock and ultra-low-speed 32.768 kHz operation. |
| 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 for deterministic real-time processing. |
| ADC | 12-bit resolution, 23 input channels, two independent sample-and-hold circuits enabling true simultaneous sampling. |
| DAC | Two 8-/10-bit DACs; output voltage range 0 V to VDD; supports realtime output without CPU intervention. |
| DALI Interface | Single integrated digital addressable lighting interface compliant with DALI-2 standard for smart LED driver control. |
| Operating Voltage | 1.6 V to 5.5 V single-supply operation; supports direct connection to 3.3 V or 5 V systems without level shifters. |
| Temperature Range | –40°C to +85°C (industrial grade, "2D" suffix per Renesas part numbering). |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), lead-free, RoHS-compliant, magazine packaging (#CA1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P01 | ADC Input / UART RX / DALI RX | Primary DALI-2 receive channel with internal pull-up; also serves as ANI30 analog input and TAU timer output TO00. |
| P00 | ADC Input / UART TX / DALI TX | Primary DALI-2 transmit channel; also functions as ANI29 analog input and TAU timer input TI00. |
| P120 | ADC Input / Comparator Input | ANI19 analog input and IVCMP0 comparator input; supports trigger-based timer gating for PFC control. |
| P40 | Debug Interface | TOOL0 pin for on-chip debugging and programming via Renesas E2 emulator; no alternate peripheral function. |
| RESET | System Reset Input | Active-low reset with internal pull-up; accepts external reset signal or POR/LVD-generated assertion. |
| P137 | External Interrupt | INTP0 interrupt input with configurable edge sensitivity; used for emergency stop or fault detection in lighting drivers. |
| P122 | External Clock / Timer Input | EXCLK/EXCLKS input for external crystal or clock source; also serves as TAU timer output TO00 in alternate mode. |
| REGC | Regulator Bypass | Connects to VSS via 0.47–1 µF capacitor to stabilize internal voltage regulator; mandatory for stable operation. |
| VSS | Ground Reference | Analog/digital common ground; must be low-impedance and separated from noisy return paths in DALI designs. |
| VDD | Power Supply | 1.6–5.5 V main supply; powers all analog and digital blocks including DALI transceiver and ADC/DAC. |
| P20/P21 | Analog Reference Inputs | AVREFP and AVREFM pins for ADC reference; support external reference or internal 1.48 V reference selection. |
| P22/P23 | ADC/DAC Analog I/O | ANI2/ANO0 and ANI3/ANO1 support simultaneous sampling and dual DAC output with PGA path. |
| P10–P15 | Multi-function I/O | Support SPI (SCK11/SI11/SO11), I²C (SCL11/SDA11), UART (RxD2/TxD2), and buzzer (PCLBUZ1) with flexible peripheral redirection. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Application Accelerator (FAA) | Hardware accelerator for 32-bit signed multiply-accumulate and limit operations; enables sub-µs loop times in digital PFC and lighting dimming algorithms. |
| DALI-2 Compliance | Integrated DALI-2 physical layer and protocol support eliminates need for external transceiver IC; reduces BOM count and PCB area in LED driver designs. |
| Simultaneous Sampling ADC | Two independent sample-and-hold circuits allow concurrent capture of phase current and bus voltage - critical for accurate real-time power calculation in SMPS. |
| Low-Power Operating Modes | HALT, STOP, and SNOOZE modes achieve ≤50 µA/MHz active current and <0.23 µA STOP current; extends battery life in wireless lighting controls. |
| Programmable Gain Amplifier (PGA) | Single PGA with selectable gain supports direct amplification of small-signal sensor outputs (e.g., current sense resistors) before ADC conversion. |
| Realtime DAC Output | Two DACs update output voltage without CPU intervention via timer-triggered or event-driven writes - essential for smooth analog dimming in DALI drivers. |
Applications
| LED Lighting Driver | Digital Power Supply |
|---|---|
Use Scenario: Constant-current LED driver with DALI-2 digital control, thermal foldback, and analog dimming. IC Role / Device Role / Timing Role: Main system controller executing DALI-2 stack, PWM generation, ADC-based current sensing, and FAA-accelerated PID loop. Use Value: Integrated DALI-2 PHY and FAA reduce component count by 3+ ICs and cut firmware latency by >40% vs. software-only implementations. | Use Scenario: 65 W AC/DC adapter with active PFC and LLC resonant control. IC Role / Device Role / Timing Role: Primary digital controller managing interleaved PFC, LLC timing, voltage/current regulation, and fault protection. Use Value: Simultaneous ADC sampling and FAA-based limit operations enable precise multi-phase current balancing and fast overcurrent response (<2 µs). |
| Motor Control Module | Industrial Sensor Node |
Use Scenario: Brushless DC motor driver for HVAC blowers with sensorless commutation and torque ripple suppression. IC Role / Device Role / Timing Role: Real-time motor controller running field-oriented control (FOC) with ADC current feedback and PWM output gating. Use Value: KB30/KB31 complementary timers with 651-ps average resolution provide precise dead-time control and dithering for reduced EMI in compact fan modules. | Use Scenario: Battery-powered environmental sensor node with light, temperature, and occupancy sensing. IC Role / Device Role / Timing Role: Low-power system manager handling sensor interfacing, data logging to data flash, and wake-on-event communication. Use Value: 0.23 µA STOP mode current and background data flash rewriting enable >5-year battery life with periodic BLE wakeup and reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F101G6E2DSP#CA1 | Same package and pinout; 64 KB code flash, 4 KB data flash, identical peripherals and clocking. | Suitable for cost-sensitive lighting designs with smaller firmware footprint and less data logging requirement. | Select when application firmware fits within 64 KB and data retention needs are ≤4 KB. |
| RL78/G14 R5F104LEAFB#30 | 32-pin LQFP; 128 KB flash but no DALI-2 interface, FAA, or simultaneous-sampling ADC; lower max clock (32 MHz). | Applicable to general-purpose industrial control where DALI or advanced motor control is not required. | Choose only if DALI-2, FAA, or sub-µs control loops are unnecessary and board layout allows larger package. |
Compared with R7F101G6E2DSP#CA1, the R7F101G6G2DSP#CA1 adds 64 KB flash and 2 KB data flash for complex DALI-2 stacks and extended runtime logging; versus RL78/G14, it delivers hardware-accelerated control, integrated DALI-2, and higher-resolution analog subsystem - enabling feature-rich, space-constrained lighting and power designs.
Availability
R7F101G6G2DSP#CA1 is available at Aetrix Electronics and suitable for LED lighting drivers, digital power supplies, motor control modules, and industrial sensor nodes requiring stable component supply across automotive-grade traceability and long-term production cycles.
Supply support for R7F101G6G2DSP#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, low-power embedded control applications - specifically engineered for digital power conversion, smart lighting with DALI-2, and real-time motor control requiring hardware acceleration and rich analog integration.
FAQ
What is the maximum operating frequency and power consumption of the R7F101G6G2DSP#CA1?
The R7F101G6G2DSP#CA1 operates at up to 48 MHz with a typical active current of 50 µA/MHz at 3.3 V and 25°C. In STOP mode, it achieves ≤0.23 µA, and in SNOOZE mode, it maintains peripheral operation (e.g., ADC, RTC) while drawing <2.5 µA - making it ideal for battery-backed lighting and sensor applications where energy efficiency is critical.
Does the R7F101G6G2DSP#CA1 support DALI-2 communication natively?
Yes, the R7F101G6G2DSP#CA1 includes a fully integrated DALI-2 physical layer and protocol support, eliminating the need for an external transceiver IC. Its P00 (DALITxD0) and P01 (DALIRxD0) pins implement the standardized DALI bus interface with built-in current limiting and slew rate control per IEC 62386-102, enabling direct connection to DALI wiring without discrete components.
What analog features does the R7F101G6G2DSP#CA1 provide for sensor interfacing?
The R7F101G6G2DSP#CA1 provides a 12-bit ADC with 23 input channels and two independent sample-and-hold circuits for simultaneous sampling, two 8-/10-bit DACs with realtime output, four comparators with selectable reference (DAC or external), and one programmable gain amplifier. These features support direct interfacing with current-sense resistors, thermistors, photodiodes, and other analog sensors in lighting and power applications.
Is the R7F101G6G2DSP#CA1 pin-compatible with other RL78/G24 variants?
No - the R7F101G6G2DSP#CA1 is a 20-pin LSSOP device and is not pin-compatible with RL78/G24 variants in HWQFN, WFLGA, or larger LQFP packages. Pin compatibility exists only within the same 20-pin LSSOP family (e.g., R7F101G6E2DSP#CA1), which shares identical pinout, peripheral mapping, and electrical characteristics except for flash and data flash capacities.
What development tools are supported for the R7F101G6G2DSP#CA1?
The R7F101G6G2DSP#CA1 is supported by Renesas' e² studio IDE, CS+ for CC, and the E2 emulator Lite for debugging and programming. Hardware evaluation is enabled via the Renesas RL78/G24 Target Board (YRDKRL78G24) and the RL78/G24 Demonstration Kit, both providing access to all 20 pins, DALI interface, and onboard power regulation for rapid prototyping of lighting and power applications.
R7F101G6G2DSP#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F101G6G2DSP#CA1 FAQ
1.How can I place an order for R7F101G6G2DSP#CA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F101G6G2DSP#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 R7F101G6G2DSP#CA1 reliable?
The price and inventory of R7F101G6G2DSP#CA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F101G6G2DSP#CA1 is usually 5 days.
3.What payment methods are accepted for R7F101G6G2DSP#CA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F101G6G2DSP#CA1 transactions.
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R7F101G6G2DSP#CA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F101G6G2DSP#CA1 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 R7F101G6G2DSP#CA1?
For technical support, including R7F101G6G2DSP#CA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F101G6G2DSP#CA1 requirements.
6.How does Aetrix verify that R7F101G6G2DSP#CA1 is sourced from the original manufacturer or authorized distributors?
All R7F101G6G2DSP#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 R7F101G6G2DSP#CA1 meets industry standards.
7.What is the process for return or replacement of R7F101G6G2DSP#CA1?
All R7F101G6G2DSP#CA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7F101G6G2DSP#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 R7F101G6G2DSP#CA1 part is unused and in its original packaging.
Return procedure for R7F101G6G2DSP#CA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F101G6G2DSP#CA1 Tags

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