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Renesas R5F101JDAFA#X0
- Part No.:
- R5F101JDAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JDAFA#X0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,716
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Product details
Overview
R5F101JDAFA#X0 from Renesas is a 52-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, 10-bit ADC (12-channel), and real-time clock - deployed in battery-powered sensor nodes, industrial control panels, and smart metering interfaces.
For engineers reviewing the R5F101JDAFA#X0 datasheet, R5F101JDAFA#X0 pinout, R5F101JDAFA#X0 application, or R5F101JDAFA#X0 equivalent, key selection criteria include its 1.6–5.5 V operation, 66 μA/MHz active current, STOP-mode 0.57 μA retention, 32 MHz max CPU speed, and integrated LIN-capable UART for automotive body electronics and factory automation I/O modules.
Technical Context
The R5F101JDAFA#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, calendar-based RTC with alarm and correction, and on-chip voltage detector with 14-level LVD interrupt/reset selection.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2× UART/LIN interfaces, 2× CSI (SPI-compatible) channels, and DMA controller with 2 channels - all operating under ultra-low-power HALT/STOP/SNOOZE modes optimized for intermittent sensing and event-driven wake-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in motor control and sensor fusion. |
| Max Clock Speed | 32 MHz using high-accuracy ±1.0% on-chip oscillator; eliminates external crystal for cost-sensitive designs. |
| Flash / Data Flash / RAM | 64 KB code flash / 4 KB data flash / 4 KB RAM; supports background rewriting and boot swap for field firmware updates. |
| ADC | 10-bit resolution, 12 analog inputs, internal 1.45 V reference; suitable for precision analog monitoring without external references. |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE; extends battery life in wireless sensors and portable HMI. |
| Operating Temp | −40°C to +85°C (Industrial D-grade); validated for deployment in PLC I/O modules and HVAC controllers. |
| Supply Voltage | 1.6 V to 5.5 V single supply; interoperable with Li-ion, 3.3 V logic, and legacy 5 V systems without level shifters. |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch (PLQP0052JA-A), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared dual-function pin enabling hardware SPI or I²C master/slave without GPIO remapping. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-protocol serial interface pin simplifies connectivity to sensors, displays, and debug tools. |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as primary ADC input or precision reference source for ratiometric sensor measurements. |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Enables differential ADC sampling or ground-referenced measurement with internal AVSS routing. |
| P30/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Dual-role pin supports both system wake-up from STOP mode and JTAG/SWJ debug reset initiation. |
| VDD, VSS | Power Supply / Ground | Dedicated power pins with decoupling recommendations ensure stable operation at 32 MHz across temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active - enables >10-year battery life in gas meters and environmental loggers. |
| Self-programmable flash | Boot swap and flash shield window support secure over-the-air (OTA) firmware updates without external programmer. |
| LIN-compliant UART | Hardware LIN bus support (ISO 17987) enables direct integration into automotive body control modules and seat/mirror ECUs. |
| On-chip temperature sensor | Calibrated internal sensor (±2°C accuracy) provides thermal monitoring for fan control and battery management without BOM cost. |
| Multi-voltage I/O | I/Os tolerate 1.8 V, 2.5 V, and 3 V logic levels - simplifies interfacing with mixed-voltage peripherals in industrial gateways. |
Applications
| Smart Energy Metering | Industrial HMI Panel |
|---|---|
Use Scenario: Bidirectional energy measurement with tamper detection, pulse counting, and display refresh. IC Role / Device Role / Timing Role: Main controller managing metrology ADC, LCD driver, RTC calendar, and IR/RS-485 communication stack. Use Value: 64 KB flash stores dual firmware images; 4 KB data flash logs consumption history; STOP-mode 0.57 μA enables 15-year CR2032 backup. |
Use Scenario: Local operator interface for PLC-controlled packaging lines with touch feedback and status LEDs. IC Role / Device Role / Timing Role: Real-time UI processor handling button debouncing, LED PWM, buzzer tone generation, and Modbus RTU gateway. Use Value: 12-channel 10-bit ADC reads potentiometers and analog sensors; multi-voltage I/O interfaces directly with 24 V field devices via optocouplers. |
| Automotive Body Control | Wireless Sensor Node |
Use Scenario: Door module controlling mirror fold/unfold, window lift, and interior lighting with LIN slave communication. IC Role / Device Role / Timing Role: LIN protocol handler and motor driver interface with PWM timing synchronized to CAN-triggered events. Use Value: Integrated LIN-capable UART reduces external transceiver count; 16-bit timers generate precise motor phase timing at 32 MHz. |
Use Scenario: Battery-powered vibration/temperature node transmitting data via BLE or sub-GHz RF every 5 minutes. IC Role / Device Role / Timing Role: Low-power coordinator waking from STOP mode on RTC alarm, sampling sensors, and triggering RF transmission. Use Value: 0.57 μA STOP current extends CR2477 battery life to 7+ years; on-chip temperature sensor eliminates discrete component. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JEAFA#X0 | Same package and pinout; 64 KB flash, 4 KB data flash, but adds 1 extra UART channel (3 total vs. 2). | Better suited for dual-serial applications like RS-485 + BLE coexistence or dual-LIN networks. | Select when additional UART is required without changing PCB layout or firmware abstraction layer. |
| R5F100JDAFA#X0 | Identical pinout and package; differs only by inclusion of 4 KB data flash (R5F100x has data flash, R5F101x does not - per datasheet Note 2). | Required where EEPROM-like nonvolatile parameter storage is needed (e.g., calibration data, device ID). | Choose R5F100JDAFA#X0 if runtime data logging or field-configurable settings are mandatory. |
Compared with R5F101JEAFA#X0 and R5F100JDAFA#X0, the R5F101JDAFA#X0 offers optimal balance of serial interface count and nonvolatile storage needs - ideal for cost-constrained industrial controls where data flash is unnecessary but LIN+UART concurrency is critical.
Availability
R5F101JDAFA#X0 is available at Aetrix Electronics and suitable for industrial control panels, smart metering interfaces, and automotive body electronics requiring stable component supply across extended product lifecycles.
Supply support for R5F101JDAFA#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G13 family delivers ultra-low-power 16-bit performance for general-purpose embedded applications - designed specifically for battery-operated equipment, sensor hubs, and cost-sensitive industrial controls demanding high reliability and long-term supply stability.
FAQ
What is the maximum operating frequency of the R5F101JDAFA#X0?
The R5F101JDAFA#X0 supports a maximum CPU clock frequency of 32 MHz using its high-speed on-chip oscillator, which maintains ±1.0% accuracy across 1.8–5.5 V and −20°C to +85°C. This enables 41 DMIPS performance while maintaining ultra-low-power operation at 66 μA/MHz - verified in the R01DS0131EJ0380 datasheet Section 1.1.
Does the R5F101JDAFA#X0 include data flash memory?
No, the R5F101JDAFA#X0 does not include data flash memory. Per RL78/G13 datasheet Figure 1-1 and Note 2, part numbers beginning with "R5F101x" denote variants without data flash, whereas "R5F100x" denotes versions with 4–8 KB data flash. The R5F101JDAFA#X0 contains 64 KB code flash and 4 KB RAM only.
What package type and pin count does the R5F101JDAFA#X0 use?
The R5F101JDAFA#X0 uses a 52-pin LQFP package with 10 × 10 mm body size and 0.65 mm pin pitch (RENESAS Code PLQP0052JA-A). The "FA" suffix in the part number explicitly denotes LQFP-0.65mm, and "J" indicates 52-pin count per the RL78/G13 ordering guide in Section 1.2 of R01DS0131EJ0380.
Is the R5F101JDAFA#X0 qualified for industrial temperature range?
Yes, the R5F101JDAFA#X0 is rated for industrial operation from −40°C to +85°C (D-grade), as confirmed by the "D" suffix in its full ordering code and Table 1-1 in the datasheet. This qualification covers use in programmable logic controllers, motor drives, and factory automation equipment exposed to wide ambient variations.
Which serial interfaces are supported by the R5F101JDAFA#X0?
The R5F101JDAFA#X0 supports two UART/LIN channels, two CSI (SPI-compatible) channels, and three I²C/Simplified I²C channels - all configurable via register settings. Its UART peripherals include LIN physical layer compliance (ISO 17987), enabling direct connection to automotive LIN networks without external transceivers.
R5F101JDAFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- 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:
- 38
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101JDAFA#X0 FAQ
1.How can I place an order for R5F101JDAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JDAFA#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 R5F101JDAFA#X0 reliable?
The price and inventory of R5F101JDAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JDAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101JDAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JDAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JDAFA#X0?
R5F101JDAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JDAFA#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 R5F101JDAFA#X0?
For technical support, including R5F101JDAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JDAFA#X0 requirements.
6.How does Aetrix verify that R5F101JDAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101JDAFA#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 R5F101JDAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101JDAFA#X0?
All R5F101JDAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JDAFA#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 R5F101JDAFA#X0 part is unused and in its original packaging.
Return procedure for R5F101JDAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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