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Renesas R5F100JKAFA#50
- Part No.:
- R5F100JKAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JKAFA#50.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,135
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Product details
Overview
R5F100JKAFA#50 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 256 KB flash, 8 KB data flash, 20 KB RAM, 16-bit RL78 CPU core, and operation from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, supports ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates UART, I²C, CSI, 16-bit timers, 10-bit ADC (26 channels), RTC, and DMA - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F100JKAFA#50 datasheet, R5F100JKAFA#50 pinout, R5F100JKAFA#50 application, or R5F100JKAFA#50 equivalent, key selection criteria include its 52-pin LQFP package with 0.65-mm pitch, 256 KB code flash + 8 KB data flash allocation, -40°C to +85°C industrial temperature grade (A/D suffix), and integrated BGO-capable data flash for firmware-over-the-air updates without halting execution.
Technical Context
The R5F100JKAFA#50 implements the RL78 CISC core with 3-stage pipeline and configurable instruction timing (0.03125 μs min @32 MHz). Its memory subsystem includes 256 KB on-chip flash with 1 KB block erase, 8 KB data flash supporting background operation (BGO), and 20 KB RAM - enabling concurrent program execution and nonvolatile parameter storage.
Peripherals are tightly coupled to low-power operation: 16-bit timer array (12 channels), 10-bit ADC with internal 1.45 V reference and temperature sensor, real-time clock with calendar/alarm, and dual-channel DMA that transfers between SFR and RAM in just 2 clocks - critical for deterministic sensor data acquisition in energy-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @32 MHz |
| Flash Memory | 256 KB code flash (1 KB erase blocks) + 8 KB data flash with BGO support |
| RAM | 20 KB on-chip RAM, including dedicated areas for flash library self-programming |
| Supply Voltage | 1.6 V to 5.5 V single supply - enables direct Li-ion or 3.3 V/5 V system rail interfacing |
| Power Consumption | 66 μA/MHz active mode; 0.57 μA in STOP mode with RTC + LVD active |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Timers & Clock | 12× 16-bit timers, 1× 12-bit interval timer, 1× RTC with calendar/alarm/correction |
| Communication | Up to 4× UART/LIN, 10× I²C/Simplified I²C, 8× CSI (SPI-compatible) channels |
Pinout & Package
Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch, exposed pad (PLQP0052JA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared pin for synchronous serial communication; requires software-configurable peripheral routing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / debug RX / I²C data | Multi-function pin supporting programming, debugging, and dual-protocol serial interfaces |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Enables external or internal reference selection for precise 10-bit ADC measurements |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Provides differential reference capability and supports ratiometric sensor measurement |
| P50/INTP0/TOOLnTRST | External interrupt 0 / JTAG reset | Dual-role pin for wake-up from STOP mode and boundary-scan test control |
| VSS | Digital ground | Primary digital return path; must be connected to PCB ground plane with low-inductance trace |
| VDD | Digital power supply | Accepts 1.6–5.5 V; decoupling capacitor required within 1 cm of pin per Renesas layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - extends battery life in decade-scale deployments |
| Background data flash rewrite | Execute code from flash while rewriting 8 KB data flash - enables seamless field firmware updates |
| On-chip debug interface | Fully integrated E1/E20 emulator support via TOOL pins - eliminates need for external debug probes |
| Multi-voltage I/O | Ports tolerate 1.8 V, 2.5 V, and 3 V logic levels - simplifies interfacing with mixed-voltage peripherals |
| Hardware CRC calculator | Dedicated peripheral computes CRC-16/32 in hardware - accelerates secure boot and data integrity checks |
| Flash shield window | Configurable memory protection prevents unauthorized read/write access to sensitive firmware regions |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with pulse counting, LCD display, and RF/PLC communication. IC Role / Device Role / Timing Role: Main controller managing metrology sampling, time-stamped logging, and secure firmware updates via BGO data flash. Use Value: 256 KB flash stores full metrology stack + OTA update image; RTC with calendar enables tariff-based billing and scheduled wake-ups. |
Use Scenario: Wireless vibration/temperature/pressure node in predictive maintenance systems. IC Role / Device Role / Timing Role: Low-power acquisition engine triggering ADC conversions on interrupt, buffering data in RAM, and transmitting via UART-to-LoRa bridge. Use Value: 0.57 μA STOP mode with RTC alarm allows hourly wake-up for sensor reading, minimizing average current to <10 μA. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main board handling motor control, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time executor of PID motor control loops, front-panel LED/key scanning, and fault detection via LVD/ADC. Use Value: 12× 16-bit timers enable simultaneous PWM generation, encoder counting, and watchdog supervision without CPU overhead. |
Use Scenario: HVAC zone controller with temperature/humidity sensing, relay actuation, and Modbus RTU communication. IC Role / Device Role / Timing Role: Protocol-aware host managing RS-485 transceiver timing, analog sensor calibration, and nonvolatile setpoint storage. Use Value: Integrated 10-bit ADC with internal temperature sensor eliminates external compensation components; 8 KB data flash stores calibration coefficients and event logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JKAFA#50 | No data flash (0 KB); identical core, peripherals, and package | Not suitable for applications requiring nonvolatile parameter storage or firmware updates | Select when only code flash is needed and cost reduction is prioritized over field-upgrade capability |
| R5F100JKDFA#50 | Same flash/RAM specs but rated for -40°C to +105°C (G-grade) | Required for under-hood automotive or high-ambient industrial environments | Choose for extended temperature operation where R5F100JKAFA#50's A/D-grade (-40°C to +85°C) is insufficient |
Compared with R5F100JKAFA#50, R5F101JKAFA#50 removes data flash to reduce cost and die size while retaining all other functionality - ideal for fixed-function devices; R5F100JKDFA#50 maintains identical memory and peripherals but qualifies for higher ambient temperatures, making it suitable for thermally demanding enclosures without redesign.
Availability
R5F100JKAFA#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for R5F100JKAFA#50 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 general-purpose embedded applications - delivering high integration, robust tooling, and certified functional safety (IEC 61508 SIL2) support for industrial control systems.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100JKAFA#50?
The R5F100JKAFA#50 operates up to 32 MHz using its high-speed on-chip oscillator and achieves 41 DMIPS at that frequency. This performance level is confirmed in the RL78/G13 datasheet (R01DS0131EJ0380 Rev.3.80) and reflects the efficiency of the 3-stage pipeline RL78 core. The R5F100JKAFA#50 maintains this rating across its full 1.6 V to 5.5 V supply range and -40°C to +85°C ambient temperature.
Does the R5F100JKAFA#50 support background operation during data flash rewriting?
Yes, the R5F100JKAFA#50 supports background operation (BGO) for its 8 KB data flash memory. This allows the CPU to execute instructions from program memory while simultaneously rewriting data flash - essential for implementing over-the-air firmware updates or logging without system interruption. The BGO function is hardware-assisted and documented in Section 1.1 Features of the R5F100JKAFA#50 datasheet.
What package type and pin count does the R5F100JKAFA#50 use?
The R5F100JKAFA#50 uses a 52-pin LQFP package with 0.65 mm pitch and dimensions of 10 mm × 10 mm (RENESAS Code PLQP0052JA-A). This package includes an exposed thermal pad and is RoHS-compliant. Pin configuration details, including multi-function assignments like P10/SCK00/SCL00 and P11/SI00/RxD0/TOOLRxD/SDA00, are specified in Section 1.3 of the R5F100JKAFA#50 datasheet.
How much RAM and flash memory does the R5F100JKAFA#50 integrate?
The R5F100JKAFA#50 integrates 256 KB of code flash memory, 8 KB of data flash memory, and 20 KB of on-chip RAM. These values are fixed for this specific part number and align with the "J" flash capacity code (256 KB) and "K" data flash code (8 KB) defined in the RL78/G13 part numbering scheme. The RAM includes dedicated sections reserved for flash library operations, as detailed in the R5F100JKAFA#50 datasheet memory map.
Is the R5F100JKAFA#50 qualified for industrial temperature operation?
Yes, the R5F100JKAFA#50 is qualified for industrial temperature operation from -40°C to +85°C. Its part number suffix "A" denotes the consumer/industrial grade (A/D), and the datasheet explicitly confirms this operating range under "Operating ambient temperature." This makes the R5F100JKAFA#50 suitable for factory automation, building controls, and outdoor metering applications where extended thermal stability is required.
R5F100JKAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K 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:
R5F100JKAFA#50 FAQ
1.How can I place an order for R5F100JKAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JKAFA#50 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 R5F100JKAFA#50 reliable?
The price and inventory of R5F100JKAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JKAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F100JKAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JKAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JKAFA#50?
R5F100JKAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JKAFA#50 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 R5F100JKAFA#50?
For technical support, including R5F100JKAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JKAFA#50 requirements.
6.How does Aetrix verify that R5F100JKAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F100JKAFA#50 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 R5F100JKAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F100JKAFA#50?
All R5F100JKAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JKAFA#50, 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 R5F100JKAFA#50 part is unused and in its original packaging.
Return procedure for R5F100JKAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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