Renesas R5F101JDAFA#30
- Part No.:
- R5F101JDAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JDAFA#30.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,555
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Product details
Overview
R5F101JDAFA#30 from Renesas is a 52-pin LQFP-0.65mm microcontroller in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 KB RAM, 10-bit A/D converter with 26 input channels, and real-time clock with calendar function. It operates from 1.6 V to 5.5 V and supports industrial temperature range (−40°C to +85°C), targeting low-power embedded control in motor drives, sensor nodes, and appliance subsystems.
For engineers reviewing the R5F101JDAFA#30 datasheet, R5F101JDAFA#30 pinout, R5F101JDAFA#30 application, or R5F101JDAFA#30 equivalent, key selection criteria include its 64 KB code flash size, absence of on-chip data flash (R5F101x series), 52-pin LQFP package with 0.65 mm pitch, RTC calendar support, and industrial-grade temperature rating.
Technical Context
The R5F101JDAFA#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, delivering 41 DMIPS at 32 MHz. Its ultra-low power design achieves 66 μA/MHz active current and 0.57 μA in STOP mode with RTC + LVD active - enabling battery-powered operation for years.
It integrates dual serial interfaces (CSI, UART/LIN), up to 16-channel 16-bit timers, 12-bit interval timer, watchdog timer, and DMA controller with 2 channels. The A/D converter includes internal 1.45 V reference and temperature sensor, usable only in high-speed main mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash (1 KB block size), no on-chip data flash (R5F101x series) |
| RAM Size | 4 KB on-chip RAM for variables, stack, and peripheral buffers |
| A/D Converter | 10-bit resolution, 26 analog input channels, internal 1.45 V reference |
| Real-Time Clock | Calendar function supporting 99-year date/time, alarm, and clock correction |
| Operating Voltage | 1.6 V to 5.5 V single supply - compatible with Li-ion, coin cell, and 3.3/5 V systems |
| Temperature Range | −40°C to +85°C (Industrial grade, 'D' suffix in part number) |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm body, 0.65 mm pitch, exposed pad not present, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports mixed-voltage I/O (1.8/2.5/3.0 V interface capability) |
| P10/SCK00/SCL00 | Serial clock I/O | Configurable as CSI clock, I²C clock, or general-purpose I/O - enables SPI/I²C peripheral bridging |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input | Multi-function pin supporting CSI data-in, UART receive, debug tool RX, and I²C data - simplifies board routing for debug and comms |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog channel 0 input and selectable ADC reference voltage source - critical for precision sensor measurement accuracy |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Analog channel 1 input and ADC reference negative - enables differential ADC measurements when paired with AVREFP |
| RESET | Active-low reset input | Asynchronous external reset pin; internally tied to on-chip POR and LVD circuits for robust system initialization |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA typical current with RTC + LVD active - enables multi-year battery life in metering and IoT endpoints |
| On-chip RTC with calendar | Full BCD calendar (year/month/day/hour/min/sec), alarm interrupt, and ±1 ppm clock correction - eliminates external RTC IC |
| Self-programmable flash | Boot swap and flash shield window functions enable secure firmware updates without external programmer |
| Multi-protocol serial interface | CSI (SPI-like), UART/LIN, and I²C all supported on shared pins - reduces MCU count in multi-sensor hubs |
| Temperature sensor + Vref | Integrated 1.45 V reference and calibrated temperature sensor - enables on-die thermal monitoring without external components |
Applications
| Smart Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller for washing machine drum motor control, water valve sequencing, and user interface management. IC Role / Device Role / Timing Role: Main system controller executing real-time motor commutation, ADC-based current sensing, and RTC-scheduled wash cycles. Use Value: 64 KB flash accommodates complex motion algorithms; 10-bit ADC with 26 channels monitors multiple sensors; RTC calendar enables delayed start functionality. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in factory settings. IC Role / Device Role / Timing Role: Low-power data acquisition node performing periodic sensor reads, local processing, and wireless transmission triggers. Use Value: 0.57 μA STOP mode extends battery life >5 years; integrated temperature sensor and 1.45 V reference reduce BOM cost; LIN/UART support enables fieldbus integration. |
| Home Energy Meter | Motor Drive Subsystem |
Use Scenario: Embedded controller in DIN-rail energy meters tracking voltage, current, and power factor over time. IC Role / Device Role / Timing Role: Precision measurement engine interfacing with isolation amplifiers and computing kWh via RTC-timestamped sampling. Use Value: Calendar RTC provides accurate billing intervals; 10-bit ADC with 26 channels supports multi-phase monitoring; industrial temp rating ensures reliability in panel environments. | Use Scenario: Dedicated MCU managing BLDC motor commutation, fault detection, and thermal protection in HVAC blowers. IC Role / Device Role / Timing Role: Real-time motor controller using PWM timers, ADC feedback loops, and watchdog supervision. Use Value: 16-channel 16-bit timers enable precise 3-phase PWM generation; 4 KB RAM supports fast PID execution; 1.6–5.5 V operation matches 24 V DC bus with local regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JDFAA#30 | Same 64 KB flash, 4 KB RAM, 52-pin LQFP, but consumer-grade (−40°C to +85°C, 'A' suffix) and lacks industrial temp screening | Suitable for cost-sensitive consumer devices where extended temp validation is unnecessary | Select if operating environment stays within standard industrial ambient limits and qualification testing is not required |
| R5F101JEAFA#30 | Same package and temp grade, but 48 KB flash and 3 KB RAM - reduced memory footprint | Better fit for simpler control tasks with smaller firmware and fewer runtime variables | Choose when application firmware fits comfortably in 48 KB and system RAM usage remains under 3 KB |
Compared with R5F101JDAFA#30, R5F101JDFAA#30 offers identical functionality without industrial temperature certification, while R5F101JEAFA#30 trades 16 KB flash and 1 KB RAM for lower cost - both require firmware size and thermal validation before substitution.
Availability
R5F101JDAFA#30 is available at Aetrix Electronics and suitable for smart appliance control, industrial sensor nodes, and home energy metering requiring stable component supply across multi-year production cycles.
Supply support for R5F101JDAFA#30 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 enterprise markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for R5F101JDAFA#30?
The R5F101JDAFA#30 operates at up to 32 MHz using the high-speed on-chip oscillator and delivers 41 DMIPS of processing performance. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and is measured under standard conditions per Renesas documentation R01DS0131EJ0380.
Does R5F101JDAFA#30 include on-chip data flash memory?
No, R5F101JDAFA#30 does not include on-chip data flash memory. As indicated by the '101' prefix in its part number per Renesas RL78/G13 ordering guide, this variant provides 64 KB of code flash only - unlike '100' series parts which integrate 4 KB or more of dedicated data flash.
What package type and pin pitch does R5F101JDAFA#30 use?
R5F101JDAFA#30 uses a 52-pin LQFP package with 10 × 10 mm body dimensions and 0.65 mm pin pitch, as confirmed in Table 1-1 of the RL78/G13 datasheet R01DS0131EJ0380. The 'FA' in the part number explicitly denotes this LQFP-0.65mm variant.
Can the integrated temperature sensor in R5F101JDAFA#30 be used in all operating modes?
The integrated temperature sensor in R5F101JDAFA#30 is functional only in HS (high-speed main) mode, as specified in Note 2 of the RL78/G13 datasheet R01DS0131EJ0380. It is disabled in STOP, HALT, and SNOOZE modes - requiring wake-up to HS mode for temperature readings.
What is the RTC capability of R5F101JDAFA#30, and does it retain time during STOP mode?
R5F101JDAFA#30 includes a full-calendar RTC with year/month/day/hour/minute/second support, alarm function, and clock correction. It retains time during STOP mode when powered by VDD and with the RTC enabled - consuming only 0.57 μA typical, as verified in Section 1.1 of R01DS0131EJ0380.
R5F101JDAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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#30 FAQ
1.How can I place an order for R5F101JDAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JDAFA#30 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#30 reliable?
The price and inventory of R5F101JDAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JDAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F101JDAFA#30?
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4.How is shipping managed for R5F101JDAFA#30?
R5F101JDAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JDAFA#30 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#30?
For technical support, including R5F101JDAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JDAFA#30 requirements.
6.How does Aetrix verify that R5F101JDAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F101JDAFA#30 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#30 meets industry standards.
7.What is the process for return or replacement of R5F101JDAFA#30?
All R5F101JDAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JDAFA#30, 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#30 part is unused and in its original packaging.
Return procedure for R5F101JDAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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