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Renesas R5F100JEAFA#X0
- Part No.:
- R5F100JEAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JEAFA#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,474
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Product details
Overview
R5F100JEAFA#X0 from Renesas is a 52-pin LQFP-0.65mm ultra-low-power 16-bit RL78/G13 MCU with 64 KB flash, 4 KB data flash, 4 KB RAM, 10-bit ADC (12-channel), and integrated RTC/LVD - deployed in battery-powered industrial sensors and smart metering endpoints requiring sub-1 μA STOP mode current.
For engineers reviewing the R5F100JEAFA#X0 datasheet, R5F100JEAFA#X0 pinout, R5F100JEAFA#X0 application, or R5F100JEAFA#X0 equivalent, key selection criteria include its 64 KB code flash with self-programming, 10-bit 12-channel ADC operating down to 1.6 V, real-time clock with calendar/alarm, HALT/STOP/SNOOZE low-power modes, and 52-pin LQFP package with 0.65-mm pitch.
Technical Context
The R5F100JEAFA#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, 16-bit timers (12 channels), UART/LIN-capable serial interfaces (3 channels), and CSI/SPI/I²C peripherals.
Power management includes on-chip POR, 14-level LVD with interrupt/reset options, and true low-power operation: 66 μA/MHz active current and 0.57 μA in STOP mode with RTC + LVD active - enabled by dual-clock domain architecture separating high-speed and subsystem clocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at 32 MHz with 41 DMIPS. |
| Flash Memory | 64 KB code flash + 4 KB data flash; supports background operation (BGO) and 1M rewrite cycles for firmware updates and logging. |
| RAM | 4 KB on-chip RAM; sufficient for RTOS stacks, sensor buffers, and communication protocol handling in compact embedded nodes. |
| ADC | 10-bit resolution, 12 analog input channels, internal 1.45 V reference; suitable for precision analog sensing without external references. |
| Low-Power Modes | HALT (0.74 μA), STOP (0.57 μA with RTC+LVD), SNOOZE; enables multi-year battery life in intermittent-sampling applications. |
| Operating Voltage | 1.6 V to 5.5 V single supply; allows direct interface with Li-ion, coin-cell, or 3.3 V/5 V system rails without regulators. |
| Temperature Range | –40°C to +85°C (Industrial Grade A); qualified for deployment in uncontrolled ambient environments like utility meter enclosures. |
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/peripheral rail decoupling; supports noise-immune operation in mixed-signal systems. |
| P00–P07 | General-purpose I/O with N-ch open drain option | Configurable for 1.8/2.5/3.3 V level-shifted interfacing; supports direct connection to low-voltage logic without translators. |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pins enabling SPI master/slave, UART debug, and I²C slave - simplifies board bring-up and field diagnostics. |
| P20–P25 | ANI0–ANI5 (ADC inputs) | 6 dedicated analog inputs among 12 total; routed to internal 10-bit ADC with selectable reference and temperature sensor. |
| RTC_IN/RTC_OUT | 32.768 kHz crystal oscillator terminals | Enables autonomous calendar/timekeeping during STOP mode; critical for time-stamped event logging in energy meters. |
| RESET | Active-low reset input | Accepts external reset or internal POR/LVD assertion; supports fail-safe recovery in power-critical infrastructure devices. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Enables over-the-air firmware updates and secure boot swap without external programming hardware. |
| Background operation (BGO) | Allows concurrent program execution and data flash rewriting - essential for non-disruptive data logging in monitoring systems. |
| Real-time clock (RTC) | Full calendar (99 years), alarm, and clock correction; maintains accurate time across power cycles and STOP mode. |
| On-chip voltage detector (LVD) | 14 programmable threshold levels with interrupt/reset output; provides configurable brown-out protection for reliable low-VDD operation. |
| Multi-protocol serial interface | 3 UART/LIN, 3 CSI/SPI, 3 I²C channels; supports simultaneous sensor comms (I²C), host interface (UART), and actuator control (LIN). |
| Key interrupt function | Detects button press/release on any port pin with wake-from-STOP capability - reduces system wake latency in HMI applications. |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Electricity/water/gas meter with pulse counting, tamper detection, and time-of-use billing. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing EEPROM logging, and maintaining RTC-based tariff schedules. Use Value: 0.57 μA STOP mode with RTC ensures accurate timekeeping for billing cycles during extended mains outages. |
Use Scenario: Wireless temperature/humidity/pressure node in factory automation with battery backup. IC Role / Device Role / Timing Role: Sensor hub aggregating analog and digital inputs, performing local calibration, and scheduling BLE/Wi-Fi transmissions. Use Value: 10-bit 12-channel ADC with internal reference eliminates need for external precision references, reducing BOM cost and layout area. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine mainboard managing motor drive, water valves, display, and safety interlocks. IC Role / Device Role / Timing Role: Real-time sequencer coordinating PWM outputs, reading hall sensors, and processing user inputs via key interrupt. Use Value: HALT mode (0.74 μA) enables rapid wake-on-button while maintaining full register context - critical for responsive UI. |
Use Scenario: HVAC control panel with fan speed regulation, zone temperature feedback, and Modbus RTU gateway. IC Role / Device Role / Timing Role: Protocol bridge between RS-485 Modbus and local sensors/actuators, with RTC-synchronized data reporting. Use Value: Integrated LIN support enables direct communication with automotive-grade actuators (e.g., damper motors) without external transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JFAFA#X0 | 96 KB flash, same 52-pin LQFP package, identical peripheral set and low-power specs | Supports larger firmware images (e.g., Modbus TCP stack + web server) without changing PCB layout | Select when future firmware expansion or dual-application partitioning (e.g., secure bootloader + app) is required |
| R5F100JGAFA#X0 | 128 KB flash, same package and pinout, adds 4 KB RAM (vs. 4 KB), retains all peripherals and power specs | Enables complex state machines and larger sensor fusion buffers in edge AI-lite implementations | Choose for applications needing >64 KB code space while preserving existing hardware design and toolchain |
Compared with R5F100JEAFA#X0, the R5F100JFAFA#X0 and R5F100JGAFA#X0 offer scalable flash capacity (96 KB and 128 KB) in identical 52-pin LQFP packages - enabling seamless firmware growth and enhanced data buffering without PCB revision or layout rework.
Availability
R5F100JEAFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across multi-year production cycles.
Supply support for R5F100JEAFA#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 industrial, automotive, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and energy-efficient embedded systems - balancing performance, integration, and power consumption for mainstream industrial control.
FAQ
What is the maximum operating frequency of the R5F100JEAFA#X0?
The R5F100JEAFA#X0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS performance. Its minimum instruction execution time is 0.03125 μs under this condition, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation - all within the same R5F100JEAFA#X0 device.
Does the R5F100JEAFA#X0 support in-system programming via standard interfaces?
Yes, the R5F100JEAFA#X0 supports on-chip debug and self-programming via its built-in UART (using TOOLRxD/Tx pins) or dedicated SWD interface. The flash shield window and boot swap function enable secure firmware updates without external programmers - a core capability of the R5F100JEAFA#X0.
How many analog input channels does the R5F100JEAFA#X0 ADC support?
The R5F100JEAFA#X0 integrates a 10-bit successive-approximation ADC with up to 12 analog input channels (ANI0–ANI11), including dedicated pins P20–P25. It also features an internal 1.45 V reference and temperature sensor - all confirmed in the RL78/G13 datasheet for the R5F100JEAFA#X0 variant.
What low-power modes are available on the R5F100JEAFA#X0, and what is the lowest current draw?
The R5F100JEAFA#X0 offers HALT (0.74 μA), STOP (0.57 μA), and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified in the official Renesas datasheet for the R5F100JEAFA#X0 under TA = 25°C, VDD = 3.0 V conditions.
Is the R5F100JEAFA#X0 pin-compatible with other RL78/G13 52-pin variants?
Yes, the R5F100JEAFA#X0 shares identical pinout, package (52-pin LQFP, 0.65-mm pitch), and peripheral mapping with all other RL78/G13 52-pin variants including R5F100JFAFA#X0 and R5F100JGAFA#X0 - enabling drop-in flash-capacity upgrades without PCB changes.
R5F100JEAFA#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:
- 4K x 8
- 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:
R5F100JEAFA#X0 FAQ
1.How can I place an order for R5F100JEAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JEAFA#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 R5F100JEAFA#X0 reliable?
The price and inventory of R5F100JEAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JEAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100JEAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JEAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JEAFA#X0?
R5F100JEAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JEAFA#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 R5F100JEAFA#X0?
For technical support, including R5F100JEAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JEAFA#X0 requirements.
6.How does Aetrix verify that R5F100JEAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100JEAFA#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 R5F100JEAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100JEAFA#X0?
All R5F100JEAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JEAFA#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 R5F100JEAFA#X0 part is unused and in its original packaging.
Return procedure for R5F100JEAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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