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Renesas R5F101GJAFB#X0
- Part No.:
- R5F101GJAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GJAFB#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,028
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Product details
Overview
R5F101GJAFB#X0 from Renesas is a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 192 KB flash memory, 8 KB data flash, 16 KB RAM, and operation up to 32 MHz delivering 41 DMIPS - optimized for low-power sensor nodes and motor control in HVAC and industrial automation systems.
For engineers reviewing the R5F101GJAFB#X0 datasheet, R5F101GJAFB#X0 pinout, R5F101GJAFB#X0 application, or R5F101GJAFB#X0 equivalent, key selection criteria include its 1.6–5.5 V supply range, ultra-low power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock with calendar, and LIN-capable UART interfaces.
Technical Context
The R5F101GJAFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, 16-bit timers (12 channels), and a dedicated watchdog timer with independent low-speed oscillator.
Its peripheral set includes 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN interfaces, 2–8 CSI (SPI-compatible) channels, and DMA controller with 4 channels enabling zero-wait-state transfers between SFR and RAM in just 2 clocks per 8/16-bit word.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control loops |
| Flash Memory | 192 KB code flash with 1 KB block size and flash shield window security |
| Data Flash | 8 KB background operation (BGO) capable; 1M rewrite cycles (TYP) |
| RAM | 16 KB on-chip RAM with flash library RAM reservation at FAF00H |
| Power Supply Range | 1.6 V to 5.5 V - supports direct battery (Li-ion, alkaline) and rail-flexible designs |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - enables multi-year battery life |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared serial interface pin supporting master/slave SPI or I²C timing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling debug communication (TOOLRxD) and dual-protocol serial I/O |
| P12/SO00/TxD0/TOOLTxD/SDA00 | SPI Output / UART TX / I²C Data | Enables full-duplex SPI, asynchronous UART, or bidirectional I²C data transfer |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as first ADC channel or positive reference for precision analog measurements |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Supports differential ADC mode or negative reference for ratiometric sensor conditioning |
| P22/ANI2 | Analog Input 2 | Dedicated ADC input for temperature sensing or voltage monitoring |
| P147/ANI18 | Analog Input 18 | Extended channel for multi-sensor systems requiring ≥16 analog inputs |
| VDD, VSS | Power Supply / Ground | Decoupling-critical pins requiring local 100 nF ceramic capacitors per supply pair |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swap and flash shield window enable secure firmware updates without external programmer |
| Real-time clock (RTC) | Calendar function (99 years), alarm, and clock correction - eliminates external RTC IC in time-stamped logging |
| Background data flash rewrite | BGO allows concurrent program execution during non-volatile parameter storage - no system stall |
| Multi-protocol serial interfaces | 3–10 I²C, 2–4 UART/LIN, 2–8 CSI channels - reduces external level shifters and protocol bridges |
| On-chip temperature sensor | Calibrated internal sensor usable for thermal compensation or ambient monitoring without external components |
| Different potential interface | I/O supports 1.8/2.5/3.0 V logic levels - simplifies interfacing with mixed-voltage peripherals |
Applications
| Smart Thermostats | Industrial Motor Drives |
|---|---|
Use Scenario: Embedded HVAC controller managing temperature setpoints, fan speed, and occupancy detection via PIR and thermistors. IC Role / Device Role / Timing Role: Main system MCU handling sensor fusion, PID loop execution, and wireless module coordination (e.g., sub-GHz or BLE). Use Value: Ultra-low STOP-mode current (0.57 μA) extends battery life >5 years; integrated 10-bit ADC (26 ch.) eliminates external analog front-end. |
Use Scenario: Compact BLDC motor controller for pumps and compressors with hall-effect commutation and current sensing. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, PWM generation, and fault protection within <10 μs latency. Use Value: 32 MHz core + 16-bit timers with dead-time insertion support precise 3-phase gate drive; 1.6–5.5 V range accommodates wide-input DC bus. |
| Energy Metering Modules | Factory Automation I/O Nodes |
Use Scenario: DIN-rail mounted electricity meter performing voltage/current sampling, kWh calculation, and RS-485 communication. IC Role / Device Role / Timing Role: Primary metrology processor with simultaneous ADC sampling and tamper detection via LVD interrupt. Use Value: On-chip 1.45 V reference and temperature sensor enable drift-compensated measurements; data flash stores calibration coefficients securely. |
Use Scenario: Distributed digital I/O terminal collecting discrete sensor signals and driving solenoids/relays across PLC networks. IC Role / Device Role / Timing Role: Edge intelligence node running Modbus RTU over UART and managing opto-isolated inputs/outputs. Use Value: 48-pin LFQFP provides ample GPIO (up to 39 I/O); LIN-capable UART simplifies integration into automotive-grade factory networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GJAFB#V0 | Identical silicon; differs only in packaging (tray vs. embossed tape) | No functional difference; suited for manual prototyping or small-batch assembly | Select #V0 for engineering samples or low-volume builds requiring tray delivery |
| R5F101GJAFB#50 | Same device; uses embossed tape but with different reel specification (EIA-481-D vs. EIA-481-C) | Compatible with standard SMT pick-and-place feeders; identical thermal and electrical behavior | Choose #50 for high-speed automated production lines requiring EIA-481-D tape compliance |
Compared with R5F101GJAFB#V0 and R5F101GJAFB#50, the R5F101GJAFB#X0 offers identical functionality and performance but is optimized for cost-sensitive, medium-to-high volume manufacturing using EIA-481-C compliant embossed tape - ensuring seamless feeder compatibility and reduced line changeover time.
Availability
R5F101GJAFB#X0 is available at Aetrix Electronics and suitable for industrial motor drives, smart thermostats, and energy metering modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F101GJAFB#X0 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/G13 product line targets cost-sensitive, ultra-low-power embedded applications - designed to replace legacy 8-bit MCUs while delivering 16-bit performance, integrated peripherals, and robust industrial qualification (−40°C to +105°C).
FAQ
What is the operating temperature range for the R5F101GJAFB#X0?
The R5F101GJAFB#X0 is rated for industrial operation from −40°C to +105°C, validated per Renesas' G-grade qualification standards. This ensures reliable performance in demanding environments such as motor control enclosures and outdoor HVAC units where ambient temperatures exceed consumer-grade limits. The R5F101GJAFB#X0 maintains full functionality across this range without derating.
Does the R5F101GJAFB#X0 include an integrated debugger interface?
Yes, the R5F101GJAFB#X0 includes an on-chip debug function compatible with Renesas E2 emulator and CS+ IDE. It supports full JTAG-based debugging including breakpoints, watchpoints, and real-time variable monitoring without requiring external debug hardware - reducing development cost and board space versus external debug probes.
How many analog input channels does the R5F101GJAFB#X0 support?
The R5F101GJAFB#X0 supports up to 26 analog input channels (ANI0–ANI25) on its 48-pin LFQFP package. Pin P147 serves as ANI18, and additional channels are accessible via multiplexed port pins. All channels share a single 10-bit successive-approximation ADC with internal 1.45 V reference and temperature sensor - enabling simultaneous multi-sensor acquisition in compact designs.
Can the R5F101GJAFB#X0 operate from a single 3.3 V supply?
Yes, the R5F101GJAFB#X0 operates fully across 1.6 V to 5.5 V, making it compatible with standard 3.3 V rails. At 3.3 V, it achieves maximum 32 MHz operation with full peripheral functionality, including ADC, RTC, and all serial interfaces. No level-shifting is required for 3.3 V logic peripherals due to its different-potential I/O capability.
Is data flash rewriting supported during program execution on the R5F101GJAFB#X0?
Yes, the R5F101GJAFB#X0 supports background operation (BGO) for data flash rewriting - allowing the CPU to execute instructions from code flash while concurrently writing to data flash. This enables seamless parameter updates (e.g., calibration values or configuration settings) without interrupting real-time tasks, critical for uninterrupted operation in industrial controllers.
R5F101GJAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101GJAFB#X0 FAQ
1.How can I place an order for R5F101GJAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GJAFB#X0 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 R5F101GJAFB#X0 reliable?
The price and inventory of R5F101GJAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GJAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101GJAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GJAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GJAFB#X0?
R5F101GJAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GJAFB#X0 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 R5F101GJAFB#X0?
For technical support, including R5F101GJAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GJAFB#X0 requirements.
6.How does Aetrix verify that R5F101GJAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101GJAFB#X0 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 R5F101GJAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101GJAFB#X0?
All R5F101GJAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GJAFB#X0, 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 R5F101GJAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101GJAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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