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Renesas R5F101JEDFA#X0
- Part No.:
- R5F101JEDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JEDFA#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,835
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Product details
Overview
R5F101JEDFA#X0 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 up to 26 channels, and real-time clock with calendar function - deployed in industrial control panels requiring low-power operation across -40°C to +85°C ambient.
For engineers reviewing the R5F101JEDFA#X0 datasheet, R5F101JEDFA#X0 pinout, R5F101JEDFA#X0 application, or R5F101JEDFA#X0 equivalent, key selection criteria include its 64 KB code flash with self-programming support, 10-bit ADC resolution at VDD = 1.6–5.5 V, integrated RTC with alarm/calendar, ultra-low power HALT/STOP/SNOOZE modes, and 52-pin LQFP package compatibility with industrial-grade temperature range.
Technical Context
The R5F101JEDFA#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 ultra-low-speed mode). It integrates on-chip peripherals including UART/LIN, I²C, CSI, 16-bit timers, watchdog timer, and DMA controller with 2/4 channels.
Its power management includes on-chip POR and voltage detector (LVD) with 14 selectable levels, enabling robust reset and interrupt handling. The device operates from a single 1.6–5.5 V supply and achieves 66 μA/MHz active current and 0.57 μA in RTC+LVD-only mode - optimized for battery-backed or energy-constrained industrial sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 CISC with 3-stage pipeline; enables deterministic timing for real-time control loops |
| Flash Memory | 64 KB code flash with 1 KB block size; supports secure erase prohibition and boot swap |
| Data Flash | 4 KB background operation (BGO); allows concurrent program execution during rewrites |
| RAM | 4 KB on-chip RAM; sufficient for RTOS stacks and sensor data buffering in compact designs |
| A/D Converter | 10-bit resolution, 26-channel input; calibrated against internal 1.45 V reference for stable analog sensing |
| Real-Time Clock | Calendar function (99-year range), alarm, and clock correction; eliminates need for external RTC IC |
| Operating Temperature | -40°C to +85°C (Industrial D-grade); validated for deployment in factory automation environments |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch (JEDEC MS-026AC), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared pin supports dual serial protocols; requires software configuration for mode selection |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / debug RX / I²C data | Multi-function I/O enables flexible peripheral routing without external logic |
| P20/ANI0/AVREFP | Analog input channel 0 / ADC reference positive | Dual-role pin simplifies reference design; AVREFP can be externally bypassed for precision ADC |
| P21/ANI1/AVREFM | Analog input channel 1 / ADC reference negative | Enables differential ADC measurements when used with AVREFP; supports ratiometric sensing |
| P50/INTP0/TOOLRST | External interrupt 0 / debug reset | Hardware reset and interrupt sharing reduces board-level signal count in debug-enabled production units |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA consumption with RTC + LVD active - extends battery life in maintenance-free sensor nodes |
| On-chip high-accuracy oscillator | +/-1.0% accuracy (1.8–5.5 V, -20 to +85°C); eliminates external crystal for cost-sensitive applications |
| Self-programming flash | Supports firmware updates in-field via boot swap and flash shield window; no external programmer required |
| Background operation (BGO) | Enables uninterrupted program execution while rewriting data flash - critical for logging without latency |
| Multi-protocol serial interface | CSI (SPI-like), UART/LIN, and I²C all available on shared pins; reduces PCB footprint and BOM count |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
|
Use Scenario: Local operator interface with button inputs, LED indicators, and LCD segment driver. IC Role / Device Role / Timing Role: Main system controller executing UI state machine, managing touch debounce, driving display segments, and polling sensors. Use Value: Integrated 10-bit ADC reads potentiometer inputs; RTC provides timestamping for event logs; low-power STOP mode conserves energy between user interactions. |
Use Scenario: Residential electricity meter with pulse counting, tamper detection, and communication via RS-485 or PLC. IC Role / Device Role / Timing Role: Primary metrology controller handling pulse accumulation, time-of-use billing, and secure data storage. Use Value: 4 KB data flash stores tariff schedules and usage history with 1M rewrite cycles; LIN-capable UART interfaces with external communication modules. |
| Factory Floor Sensor Node | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: Wireless or wired node monitoring temperature, humidity, and vibration in predictive maintenance systems. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing unit with local decision-making before upstream transmission. Use Value: 26-channel 10-bit ADC supports multi-sensor analog front-end; SNOOZE mode enables periodic wake-up for sampling without host intervention. |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and diagnostics. IC Role / Device Role / Timing Role: Local intelligence layer managing input debouncing, output sequencing, and fault reporting over Modbus RTU. Use Value: On-chip LVD detects brown-out conditions and triggers safe shutdown; 52-pin LQFP provides ample GPIO for discrete I/O mapping and status LEDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JCDFA#X0 | Same 52-pin LQFP package, 48 KB flash, 4 KB data flash, 3 KB RAM | Lower memory capacity suits simpler control tasks without extensive firmware or data logging | Select when firmware size < 48 KB and BGO-based data logging is not required |
| R5F101JFDFA#X0 | Same 52-pin LQFP package, 96 KB flash, 8 KB data flash, 8 KB RAM | Higher memory supports larger RTOS images, OTA update partitions, and extended data buffers | Select when future firmware scalability or enhanced data retention (e.g., 10+ years of hourly logs) is needed |
Compared with R5F101JEDFA#X0, R5F101JCDFA#X0 offers reduced memory footprint for cost-sensitive deployments, while R5F101JFDFA#X0 delivers headroom for complex field-upgradable firmware and extended data history - both retain identical pinout, peripheral set, and industrial temperature rating.
Availability
R5F101JEDFA#X0 is available at Aetrix Electronics and suitable for industrial control panels, smart energy meters, factory floor sensor nodes, and programmable logic controller I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R5F101JEDFA#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 general-purpose industrial and consumer applications demanding ultra-low power, integrated peripherals, and robust code security - designed to replace legacy 8/16-bit MCUs with minimal redesign effort.
FAQ
What is the maximum operating frequency of the R5F101JEDFA#X0?
The R5F101JEDFA#X0 supports up to 32 MHz operation using the high-speed on-chip oscillator. Its minimum instruction execution time is 0.03125 μs under this condition, delivering 41 DMIPS performance. The oscillator accuracy is ±1.0% across 1.8–5.5 V supply and -20 to +85°C ambient - eliminating need for external crystals in many applications.
Does the R5F101JEDFA#X0 include an integrated real-time clock (RTC)?
Yes, the R5F101JEDFA#X0 includes a dedicated real-time clock with full calendar functionality (year/month/day/hour/minute/second), alarm capability, and clock correction. It operates independently in STOP mode with only RTC and LVD enabled, consuming just 0.57 μA - making it ideal for timestamping and scheduled wake-up in battery-powered systems.
Can the R5F101JEDFA#X0 perform flash self-programming during runtime?
Yes, the R5F101JEDFA#X0 supports self-programming of both code and data flash memory with boot swap and flash shield window functions. Data flash operations use background operation (BGO), allowing program execution from flash while rewriting - essential for reliable firmware updates and nonvolatile parameter storage without halting system operation.
What analog features does the R5F101JEDFA#X0 provide?
The R5F101JEDFA#X0 integrates a 10-bit A/D converter with up to 26 input channels, internal 1.45 V reference voltage, and on-chip temperature sensor. It operates across the full 1.6–5.5 V supply range, enabling direct sensing of resistive sensors, thermistors, and voltage dividers without external references or signal conditioning in many cases.
Is the R5F101JEDFA#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 52-pin LQFP-0.65mm package (e.g., R5F101JCDFA#X0, R5F101JFDFA#X0) share identical pinouts and electrical characteristics. This enables drop-in replacement across memory variants - simplifying design reuse, prototyping, and inventory management without PCB changes.
R5F101JEDFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 38
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
R5F101JEDFA#X0 FAQ
1.How can I place an order for R5F101JEDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JEDFA#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 R5F101JEDFA#X0 reliable?
The price and inventory of R5F101JEDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JEDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101JEDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JEDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JEDFA#X0?
R5F101JEDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JEDFA#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 R5F101JEDFA#X0?
For technical support, including R5F101JEDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JEDFA#X0 requirements.
6.How does Aetrix verify that R5F101JEDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101JEDFA#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 R5F101JEDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101JEDFA#X0?
All R5F101JEDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JEDFA#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 R5F101JEDFA#X0 part is unused and in its original packaging.
Return procedure for R5F101JEDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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