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Renesas R5F101JLAFA#V0
- Part No.:
- R5F101JLAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JLAFA#V0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,331
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Product details
Overview
R5F101JLAFA#V0 from Renesas is a 52-pin LQFP-0.65mm ultra-low-power 16-bit RL78/G13 microcontroller with 128 KB flash memory, 12 KB RAM, and no data flash, operating from 1.6 V to 5.5 V across –40°C to +85°C industrial ambient range. It delivers 41 DMIPS at 32 MHz, integrates RTC, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and supports HALT/STOP/SNOOZE low-power modes for battery-powered sensor nodes and smart metering endpoints.
For engineers reviewing the R5F101JLAFA#V0 datasheet, R5F101JLAFA#V0 pinout, R5F101JLAFA#V0 application, or R5F101JLAFA#V0 equivalent, key selection criteria include its 52-pin LQFP package, absence of on-chip data flash, industrial temperature rating, and RL78 CPU core's 66 μA/MHz active power consumption - critical for energy-constrained embedded control designs.
Technical Context
The R5F101JLAFA#V0 implements the RL78 CISC CPU core with 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). Its memory map spans 1 MB address space, with dedicated SFR regions for peripheral control and unified flash/RAM addressing.
Power management includes on-chip POR and 14-level LVD with selectable interrupt/reset behavior, while real-time operation is enabled by a calendar-capable RTC with alarm and clock correction. The device lacks data flash but retains full self-programming capability for code flash via boot swap and flash shield window functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control |
| Flash Memory | 128 KB code flash - sufficient for complex firmware with bootloader and safety routines |
| RAM Size | 12 KB on-chip RAM - supports multitasking stacks and data buffering without external memory |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade environmental reliability |
| Low-Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC+LVD - extends battery life in always-on sensing |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared dual-function pin enabling hardware SPI master/slave or I²C communication |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-protocol serial input pin supporting debug (TOOLRxD), sensor comms (SPI/I²C), and host interface (UART) |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as first ADC channel or positive reference voltage source for precision analog measurements |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Enables differential ADC mode or serves as ground reference for ratiometric sensor readings |
| P50/INTP0/TOOLnTRST | External Interrupt 0 / JTAG Reset | Dual-role pin for wake-up event detection or JTAG boundary-scan reset during development |
| VDD, VSS | Power Supply / Ground | Dedicated power pins with decoupling requirements specified per Renesas layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current with RTC and LVD active - enables multi-year battery operation in metering |
| Hardware RTC with calendar | 99-year date/time tracking, alarm, and auto-correction - eliminates need for external real-time clock IC |
| 10-bit ADC (26 channels) | Simultaneous sampling support and internal 1.45 V reference - reduces BOM cost for analog front-end design |
| Multi-protocol serial interfaces | Up to 8 CSI, 4 UART/LIN, and 10 I²C channels - simplifies connectivity to sensors, displays, and legacy buses |
| On-chip debug with SWD | Single-wire debug interface using P10/P11 - enables in-system programming and real-time trace without extra debug headers |
| High-accuracy oscillator | ±1.0% deviation over 1.8–5.5 V and –20 to +85°C - removes need for external crystal in cost-sensitive applications |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing EEPROM-less data logging via flash wear leveling, and driving RF/PLC modems. Use Value: 128 KB flash accommodates encryption libraries and firmware updates; STOP-mode current <1 μA enables >10-year battery life with supercapacitor backup. |
Use Scenario: Wireless vibration/temperature/humidity node in predictive maintenance systems deployed in factory environments. IC Role / Device Role / Timing Role: Signal acquisition hub aggregating analog/digital sensor data, performing FFT preprocessing, and scheduling LoRaWAN transmissions. Use Value: 26-channel 10-bit ADC captures multi-sensor inputs simultaneously; 1.6–5.5 V operation tolerates wide battery discharge curves without regulators. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: MCU in washing machine control board managing motor drivers, water valves, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time motion control coordinator with PWM timers, fault monitoring via LVD, and human-machine interface via touch keys. Use Value: On-chip key interrupt and buzzer controller reduce external components; HALT mode cuts standby power to <10 μA during idle cycles. |
Use Scenario: Distributed HVAC controller in commercial buildings interfacing with thermostats, dampers, and BACnet/IP gateways. IC Role / Device Role / Timing Role: Protocol translation engine converting Modbus RTU to Ethernet, managing schedule-based actuation, and logging occupancy events. Use Value: UART/LIN support enables legacy fieldbus integration; industrial temp grade ensures reliability in unconditioned mechanical rooms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JLAFA#X0 | Identical electrical specs and pinout; differs only in packaging - embossed tape vs. tray | No functional difference; selected for automated SMT line compatibility | Choose #X0 for high-volume pick-and-place assembly; #V0 for prototyping or low-volume hand soldering |
| R5F101JLAFA#10 | Same die, same package, same temperature grade - only packaging specification differs (tray variant) | Functionally identical; used interchangeably where tray delivery format is required | Select #10 when sourcing through distribution channels requiring standard tray packaging |
Compared with R5F101JLAFA#V0, both #X0 and #10 offer identical silicon functionality and thermal performance but differ solely in packaging format - making them drop-in replacements in PCB layout while enabling flexibility in manufacturing logistics and procurement routing.
Availability
R5F101JLAFA#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation systems requiring stable component supply, long-term lifecycle assurance, and industrial-grade reliability.
Supply support for R5F101JLAFA#V0 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 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, energy efficiency, and integration to replace discrete logic and older 8-bit MCUs in industrial controls and consumer electronics.
FAQ
Does R5F101JLAFA#V0 include on-chip data flash memory?
No, R5F101JLAFA#V0 does not include data flash memory. As indicated by the "101" prefix in the part number per Renesas documentation, this variant provides 128 KB of code flash only and omits the dedicated data flash block found in "100" series parts. Firmware must use code flash sectors with wear-leveling techniques for nonvolatile parameter storage.
What is the maximum operating frequency and corresponding DMIPS rating for R5F101JLAFA#V0?
R5F101JLAFA#V0 operates at up to 32 MHz and achieves 41 DMIPS performance. This metric is measured under standard conditions using the EEMBC CoreMark benchmark and reflects deterministic execution speed for real-time control loops and protocol stack processing in the RL78/G13 architecture.
Which serial communication interfaces are supported by R5F101JLAFA#V0?
R5F101JLAFA#V0 supports multiple serial protocols: up to 8 CSI (Simplified SPI) channels, up to 4 UART/LIN channels, and up to 10 I²C/Simplified I²C channels. These are implemented in hardware with independent baud rate generators and FIFO buffers, enabling concurrent communication with sensors, displays, and host controllers.
Is R5F101JLAFA#V0 qualified for industrial temperature operation?
Yes, R5F101JLAFA#V0 is rated for –40°C to +85°C ambient operation, meeting industrial-grade reliability requirements. This qualification is confirmed by the "D" suffix in the product family designation and applies across all electrical specifications in the datasheet, including timing, ADC accuracy, and oscillator stability.
What debug interface does R5F101JLAFA#V0 support, and how many pins are required?
R5F101JLAFA#V0 supports single-wire debug (SWD) using the dedicated TOOLnTRST pin (P50) and shared serial pins (P10/P11). Only two pins are required for full debug functionality - eliminating the need for a 5-pin JTAG header and reducing PCB footprint in space-constrained designs.
R5F101JLAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
R5F101JLAFA#V0 FAQ
1.How can I place an order for R5F101JLAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JLAFA#V0 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 R5F101JLAFA#V0 reliable?
The price and inventory of R5F101JLAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JLAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101JLAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JLAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JLAFA#V0?
R5F101JLAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JLAFA#V0 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 R5F101JLAFA#V0?
For technical support, including R5F101JLAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JLAFA#V0 requirements.
6.How does Aetrix verify that R5F101JLAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101JLAFA#V0 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 R5F101JLAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F101JLAFA#V0?
All R5F101JLAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JLAFA#V0, 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 R5F101JLAFA#V0 part is unused and in its original packaging.
Return procedure for R5F101JLAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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