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Renesas R5F100JJAFA#X0
- Part No.:
- R5F100JJAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JJAFA#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,625
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Product details
Overview
R5F100JJAFA#X0 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 256 KB flash, 8 KB data flash, 16 KB RAM, 32 MHz operation (41 DMIPS), and ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 10-bit ADC (24 channels), RTC with calendar/alarm, UART/SPI/I²C interfaces, and operates from 1.6–5.5 V for battery-powered industrial control nodes.
For engineers reviewing the R5F100JJAFA#X0 datasheet, R5F100JJAFA#X0 pinout, R5F100JJAFA#X0 application, or R5F100JJAFA#X0 equivalent, key selection criteria include its 52-pin LQFP package, 256 KB code flash with self-programming, 10-bit ADC resolution across 24 analog inputs, RTC calendar support, and industrial-grade -40°C to +85°C operation with LVD interrupt capability.
Technical Context
The R5F100JJAFA#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It uses a single 1.6–5.5 V supply and includes on-chip power-on-reset, 14-level voltage detector, and HALT/STOP/SNOOZE low-power states.
Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar and alarm, 1× watchdog timer, and serial interfaces: CSI (SPI-compatible), UART/LIN, and I²C - all configurable per channel count and function mapping per pin assignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with high-accuracy ±1.0% on-chip oscillator |
| Memory Configuration | 256 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 16 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 24 input channels, internal 1.45 V reference, and temperature sensor |
| Digital Interfaces | Up to 8× CSI (SPI), 4× UART/LIN, 10× I²C, 16× 16-bit timers, RTC with calendar/alarm |
| Operating Temperature | -40°C to +85°C (industrial grade, "D" suffix confirmed by part number decoding) |
Pinout & Package
Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch (FA suffix), JEDEC standard PLQP0052JA-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Single 1.6–5.5 V supply rail; multiple VSS pins ensure noise immunity and stable core/peripheral operation |
| P10/P11/P12 | SPI/UART/I²C multiplexed I/O | Configurable as SCK00/SI00/SO00 (CSI), RxD0/TxD0 (UART), or SCL00/SDA00 (I²C) - enables flexible interface routing without external logic |
| P20–P27 | Analog input / AVREFP/AVREFM | Supports up to 24-channel 10-bit ADC; P20/P21 serve as ADC reference inputs (AVREFP/AVREFM), enabling ratiometric measurements |
| P30–P37 | RTC/CLK/Reset functions | Includes X1/X2 crystal oscillator inputs for RTC (32.768 kHz), RES# reset input, and CLKOUT for system clock monitoring |
| P50–P57 | General-purpose I/O with key interrupt | N-ch open-drain capable (6 V tolerant), pull-up configurable, supports wake-up from STOP via key interrupt - ideal for keypad or sensor polling |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Enables field firmware updates and secure boot swap using on-chip flash library (start address FAF00H) |
| Background data flash write | Allows full CPU execution from program memory while rewriting 4–8 KB data flash - no interrupt latency penalty during logging |
| Different-potential interface | I/O pins tolerate 1.8/2.5/3.0 V logic levels - simplifies interconnection with mixed-voltage peripherals without level shifters |
| Ultra-low-power RTC mode | 0.57 μA consumption with RTC + LVD active - extends battery life in decade-scale metering applications |
| On-chip BCD correction | Hardware-accelerated binary-to-BCD conversion for display drivers and human-readable time/date formatting |
Applications
| Smart Energy Metering | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-backed electricity/water/gas meter with 10-year lifespan and remote reporting. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, RTC-based billing intervals, and secure firmware updates via data flash. Use Value: 0.57 μA STOP mode with RTC ensures accurate timekeeping over 10+ years on coin cell; 256 KB flash hosts dual-bank firmware for safe OTA upgrades. | Use Scenario: Local operator interface for PLC-controlled machinery with touch buttons and LED indicators. IC Role / Device Role / Timing Role: Real-time I/O coordinator managing keypad scan, LED PWM dimming, UART communication to PLC, and fault logging. Use Value: 24-channel 10-bit ADC reads analog sensors (temp, pressure); N-ch open-drain I/O drives LEDs directly; key interrupt wakes CPU from STOP on button press. |
| Home Appliance Control | Building Automation Node |
Use Scenario: Washing machine main board requiring motor control, water level sensing, and user interface. IC Role / Device Role / Timing Role: Central MCU handling motor timing (PWM via 16-bit timers), ADC-based load sensing, buzzer output, and LCD segment driving. Use Value: On-chip buzzer output controller eliminates external driver; 16 KB RAM buffers sensor data; 1.6–5.5 V range accommodates wide-input DC-DC supplies. | Use Scenario: Distributed HVAC sensor node measuring temperature/humidity and reporting via RS-485. IC Role / Device Role / Timing Role: Sensor aggregator with I²C-connected environmental ICs, UART-to-RS485 transceiver interface, and RTC-scheduled wake-up. Use Value: 10-bit ADC resolves sub-degree temp changes; 4× UART supports LIN diagnostics and RS-485 half-duplex; 8 KB data flash stores calibration coefficients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JJAFA#X0 | No data flash (0 KB); same core, package, and peripheral set otherwise | Not suitable for applications requiring nonvolatile parameter storage or firmware logging | Select when only code flash and RAM are needed; reduces cost where data retention is handled externally |
| R5F100JJAFB#X0 | LFQFP-0.5 mm pitch (7 mm × 7 mm), 48-pin package; 256 KB flash, 8 KB data flash, 16 KB RAM | Smaller footprint but fewer I/O pins (48 vs. 52) and reduced analog channel count | Choose for space-constrained designs accepting I/O reduction; verify pin compatibility before PCB revision |
Compared with R5F100JJAFA#X0, R5F101JJAFA#X0 removes data flash to lower cost and power in code-only use cases, while R5F100JJAFB#X0 trades pin count and analog I/O for compactness - both require layout or firmware revalidation due to package and memory differences.
Availability
R5F100JJAFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and home appliance control requiring stable component supply, long-term lifecycle assurance, and industrial temperature compliance.
Supply support for R5F100JJAFA#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 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer devices requiring rich analog integration and robust firmware update capability.
FAQ
What is the maximum operating frequency and performance of the R5F100JJAFA#X0?
The R5F100JJAFA#X0 operates at up to 32 MHz with a measured performance of 41 DMIPS. Its RL78 CPU core achieves this using a 3-stage pipeline and high-accuracy ±1.0% on-chip oscillator. The minimum instruction execution time varies from 0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz, supporting both high-speed processing and ultra-low-power RTC operation - critical for applications like energy meters where precision timing and responsiveness coexist.
Does the R5F100JJAFA#X0 include data flash memory, and what is its endurance?
Yes, the R5F100JJAFA#X0 includes 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing CPU execution from program memory during data flash writes - essential for reliable data logging in the R5F100JJAFA#X0 without interrupting real-time tasks.
What analog capabilities does the R5F100JJAFA#X0 provide?
The R5F100JJAFA#X0 features a 10-bit successive-approximation ADC with up to 24 input channels, internal 1.45 V reference voltage, and integrated temperature sensor. It supports simultaneous sampling on multiple channels and operates across the full 1.6–5.5 V supply range - enabling direct interfacing with resistive sensors, thermistors, and voltage dividers in industrial control systems built around the R5F100JJAFA#X0.
How does the R5F100JJAFA#X0 support low-power operation in battery-powered systems?
The R5F100JJAFA#X0 achieves ultra-low-power operation with 66 μA/MHz active current and just 0.57 μA in STOP mode with RTC and LVD active. Its HALT, STOP, and SNOOZE modes, combined with key-interrupt wake-up and on-chip voltage detector (14 selectable levels), allow precise power budgeting - making the R5F100JJAFA#X0 ideal for multi-year battery life in wireless sensors and portable instrumentation.
What is the package type and pin count of the R5F100JJAFA#X0?
The R5F100JJAFA#X0 uses a 52-pin LQFP package with 0.65 mm pitch (JEDEC PLQP0052JA-A footprint), measuring 10 mm × 10 mm. This package provides robust thermal and electrical performance for industrial environments and supports full access to all peripherals - including 24 ADC channels, multiple serial interfaces, and 16-bit timers - without signal congestion or routing constraints in the R5F100JJAFA#X0 design.
R5F100JJAFA#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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K 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:
R5F100JJAFA#X0 FAQ
1.How can I place an order for R5F100JJAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JJAFA#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 R5F100JJAFA#X0 reliable?
The price and inventory of R5F100JJAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JJAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100JJAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JJAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JJAFA#X0?
R5F100JJAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JJAFA#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 R5F100JJAFA#X0?
For technical support, including R5F100JJAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JJAFA#X0 requirements.
6.How does Aetrix verify that R5F100JJAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100JJAFA#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 R5F100JJAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100JJAFA#X0?
All R5F100JJAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JJAFA#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 R5F100JJAFA#X0 part is unused and in its original packaging.
Return procedure for R5F100JJAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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