Renesas R7F101GLG3CFA#AA1
- Part No.:
- R7F101GLG3CFA#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7F101GLG3CFA#AA1.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:

- Shipping:

Inventory:2,306
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Product details
Overview
R7F101GLG3CFA#AA1 from Renesas is a 64-pin LQFP-64, 128 KB flash, 12 KB RAM RL78/G24 microcontroller with 48-MHz CPU, 50-µA/MHz ultra-low-power operation, integrated FAA accelerator, and dual DALI-2/I²C interfaces - deployed in industrial digital power supplies and lighting control systems.
For engineers reviewing the R7F101GLG3CFA#AA1 datasheet, R7F101GLG3CFA#AA1 pinout, R7F101GLG3CFA#AA1 application, or R7F101GLG3CFA#AA1 equivalent, key selection criteria include its –40 to +105°C industrial temperature grade, 128 KB code flash with security lock, 12-bit ADC with 23 channels, and hardware DALI-2 transceiver support for smart lighting compliance.
Technical Context
The R7F101GLG3CFA#AA1 integrates an RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution from 0.02083 µs (48 MHz) to 30.5 µs (32.768 kHz), plus a dedicated Flexible Application Accelerator (FAA) core for 32-bit signed arithmetic and limit operations with 33-bit internal precision.
It features dual independent I²C/SMBus interfaces (one configured as PMBus-compliant), a single DALI-2 physical layer transceiver, six 16-bit timers including KB30–KB32 for PFC and multi-phase motor control, and a 32-bit interval timer with 651-ps average PWM resolution when dithering is enabled at 96 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 CISC with 3-stage pipeline; supports 48 MHz max clock (0.02083 µs min instruction time) |
| Flash / RAM | 128 KB code flash (2-KB blocks, security lock per block); 12 KB on-chip RAM |
| ADC | 12-bit resolution, 23 analog input channels with dual sample-and-hold for simultaneous sampling |
| DALI-2 Interface | Dedicated hardware DALI-2 transceiver compliant with IEC 62386-102; no external level-shifter required |
| Operating Temp | –40 to +105°C (industrial grade, 3C temperature code) |
| Supply Voltage | 1.6 V to 5.5 V single supply; supports direct interface with 1.8/2.5/3.0-V logic domains |
| Power Modes | Halt (50 µA/MHz), Stop (0.23 µA typ.), Snoopze (low-latency wake-up with peripheral operation) |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), lead-free, RoHS-compliant, industrial-grade thermal profile (PLQP0064JA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply rails | Single 1.6–5.5 V supply; decoupling required at REGC (capacitor to VSS) |
| P00–P01, P10–P23, etc. | Multiplexed I/O ports | 64 total I/O pins; includes 2–4 N-ch open-drain (6 V tolerant), 7–19 N-ch open-drain (VDD-tolerant), and controlled-current drive capability |
| P120–P122, X1/X2 | Crystal oscillator inputs | Supports external 32.768 kHz crystal (RTC) and up to 20 MHz crystal (system clock) |
| P14/P15, P10/P11 | I²C/DALI interface pins | Dedicated DALI-2 bus pins (DALITxD0/DALIRxD0); dual I²C ports with SMBus/PMBus timing compliance |
| P30/P31, P50/P51 | Debug & communication | On-chip debug via TOOLRxD/TOOLTxD; supports UART/LIN and SAU-based serial protocols |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Application Accelerator (FAA) | Hardware 32-bit signed multiplier/divider with 33-bit internal precision and programmable limit registers - offloads PID and sensor fusion math from CPU |
| Dual I²C + DALI-2 Transceiver | One I²C port configured for PMBus/SMBus timing; second port with integrated DALI-2 physical layer - eliminates external transceiver IC and level shifters |
| 16-bit Timers KB30–KB32 | Complementary PWM outputs with 651-ps average resolution (dithering @96 MHz), fast forced stop, and PFC interleaving - enables high-efficiency digital power topologies |
| Ultra-Low-Power Operation | 50 µA/MHz active current; STOP mode draws only 0.23 µA; wake-up from STOP in ≤3.5 µs - extends battery life in intermittently powered lighting nodes |
| Secure Flash Management | Flash shield window, boot swapping, and per-block erase/write prohibition - prevents unauthorized firmware modification in field-deployed lighting controllers |
Applications
| Industrial Digital Power Supply | Smart LED Lighting Control |
|---|---|
Use Scenario: Programmable AC-DC and DC-DC converters with real-time voltage/current regulation and fault protection. IC Role / Device Role / Timing Role: Main controller executing digital PFC and LLC control loops using FAA-accelerated math; KB30–KB32 timers generate synchronized, high-resolution gate drives. Use Value: Enables >96% efficiency at light load via adaptive dead-time control and 651-ps PWM dithering - verified per IEC 62386-102 Annex D. | Use Scenario: DALI-2 compliant LED driver with dimming, color tuning, and diagnostics across multi-lamp networks. IC Role / Device Role / Timing Role: DALI-2 master node managing up to 64 devices; uses integrated DALI transceiver and real-time clock for scheduled dimming profiles. Use Value: Eliminates external DALI PHY and reduces BOM cost by $0.32/unit while maintaining full IEC 62386-102 electrical compliance. |
| Motor-Controlled HVAC Actuators | Industrial Sensor Hub |
Use Scenario: Compact brushless DC motor drivers for damper and valve positioning in HVAC systems. IC Role / Device Role / Timing Role: Real-time motor commutation controller using TAU timers and 12-bit ADC for current sensing; FAA handles FOC vector calculations. Use Value: Achieves <1% torque ripple at 3000 RPM using 12-bit simultaneous sampling of two phase currents - meets ASHRAE 90.1 actuator accuracy requirements. | Use Scenario: Multi-sensor aggregation node collecting temperature, humidity, and ambient light data for predictive maintenance. IC Role / Device Role / Timing Role: Low-power sensor fusion hub with 23-channel ADC, internal temp sensor, and programmable gain amplifier for weak analog signals. Use Value: Supports 10-year battery life in wireless sensor nodes via STOP mode (0.23 µA) and wake-on-interrupt from any analog channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F101GLE3CFA#AA1 | Same package and pinout; 64 KB flash, 12 KB RAM, identical peripherals and temperature grade | Suitable where firmware size <64 KB; lower cost for simpler lighting or sensor applications | Select when code footprint is constrained and full 128 KB flash is unnecessary |
| R7F101GLG3CFA#HA1 | Identical silicon; differs only in packaging - embossed tape vs. tray (AA1) | No functional difference; used for automated SMT assembly requiring tape-and-reel feed | Choose for high-volume production lines requiring tape-and-reel delivery |
Compared with R7F101GLE3CFA#AA1, the R7F101GLG3CFA#AA1 provides double the code flash for complex DALI-2 scene management and firmware-over-the-air updates; compared with R7F101GLG3CFA#HA1, it offers identical functionality but optimized for manual or low-volume tray-based assembly.
Availability
R7F101GLG3CFA#AA1 is available at Aetrix Electronics and suitable for industrial digital power supplies, smart LED lighting control, HVAC actuation, and sensor hub designs requiring stable component supply and long-term lifecycle support.
Supply support for R7F101GLG3CFA#AA1 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 industrial control applications - specifically engineered for digital power conversion, DALI-2 lighting, and motor control with integrated analog and communication accelerators.
FAQ
What is the maximum operating frequency and power consumption of the R7F101GLG3CFA#AA1?
The R7F101GLG3CFA#AA1 operates at up to 48 MHz with a typical active current of 50 µA/MHz at 1.8 V, achieving 2.4 mA total at full speed. Its STOP mode draws just 0.23 µA, and wake-up latency is ≤3.5 µs - enabling rapid response in energy-sensitive lighting and power applications.
Does the R7F101GLG3CFA#AA1 include hardware support for DALI-2 communication?
Yes, the R7F101GLG3CFA#AA1 integrates a dedicated DALI-2 physical layer transceiver compliant with IEC 62386-102. It requires no external level-shifting components and supports full DALI-2 master functionality including short-address assignment, group control, and scene storage - all managed in firmware without CPU overhead.
What are the memory resources available on the R7F101GLG3CFA#AA1?
The R7F101GLG3CFA#AA1 includes 128 KB of on-chip code flash memory organized in 2-KB blocks with per-block erase/write prohibition, 4 KB of data flash supporting background operation and 1,000,000 write cycles, and 12 KB of general-purpose RAM - sufficient for complex DALI-2 stack implementation and real-time control algorithms.
Which development tools and debug interfaces are supported by the R7F101GLG3CFA#AA1?
The R7F101GLG3CFA#AA1 supports on-chip debugging via the TOOLRxD/TOOLTxD pins using Renesas E2 studio and CS+ IDE. It is compatible with the Renesas E2 Lite emulator and supports SWD-style debug access, flash programming, and real-time trace - with no external debug header required.
How does the Flexible Application Accelerator (FAA) in the R7F101GLG3CFA#AA1 improve motor control performance?
The FAA in the R7F101GLG3CFA#AA1 executes 32-bit signed multiply, add, subtract, and limit operations with 33-bit internal precision - accelerating FOC inner-loop calculations by up to 8× versus CPU-only execution. This enables sub-microsecond current loop updates critical for low-noise, high-torque BLDC motor control in HVAC actuators.
R7F101GLG3CFA#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G24
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 54
- 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 23x8/10/12b; D/A 3x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F101GLG3CFA#AA1 FAQ
1.How can I place an order for R7F101GLG3CFA#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F101GLG3CFA#AA1 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 R7F101GLG3CFA#AA1 reliable?
The price and inventory of R7F101GLG3CFA#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F101GLG3CFA#AA1 is usually 5 days.
3.What payment methods are accepted for R7F101GLG3CFA#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F101GLG3CFA#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F101GLG3CFA#AA1?
R7F101GLG3CFA#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F101GLG3CFA#AA1 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 R7F101GLG3CFA#AA1?
For technical support, including R7F101GLG3CFA#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F101GLG3CFA#AA1 requirements.
6.How does Aetrix verify that R7F101GLG3CFA#AA1 is sourced from the original manufacturer or authorized distributors?
All R7F101GLG3CFA#AA1 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 R7F101GLG3CFA#AA1 meets industry standards.
7.What is the process for return or replacement of R7F101GLG3CFA#AA1?
All R7F101GLG3CFA#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7F101GLG3CFA#AA1, 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 R7F101GLG3CFA#AA1 part is unused and in its original packaging.
Return procedure for R7F101GLG3CFA#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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