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Renesas R5F101JCAFA#V0
- Part No.:
- R5F101JCAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JCAFA#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,257
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Product details
Overview
R5F101JCAFA#V0 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 KB RAM, 16-bit RL78 CPU core, and ultra-low power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for battery-powered industrial control and sensor interface applications.
For engineers reviewing the R5F101JCAFA#V0 datasheet, R5F101JCAFA#V0 pinout, R5F101JCAFA#V0 application, or R5F101JCAFA#V0 equivalent, key selection criteria include its 52-pin LQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade, and integrated peripherals including 10-bit ADC (26 channels), RTC, UART/LIN, I²C, and 16-bit timers.
Technical Context
The R5F101JCAFA#V0 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and operates across 1.6–5.5 V supply. It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), DMA controller (2 channels), and multiplier/divider unit for embedded signal processing.
Its peripheral set includes up to 26-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, real-time clock with calendar/alarm/correction functions, watchdog timer with dedicated low-speed oscillator, and serial interfaces: CSI (SPI-compatible), UART/LIN (2 channels), and I²C (up to 10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 64 KB code flash (1 KB block size); no on-chip data flash (R5F101x series) |
| RAM | 4 KB on-chip RAM for variables, stack, and peripheral buffers |
| Operating Voltage | 1.6 V to 5.5 V - supports direct connection to Li-ion, alkaline, or regulated 3.3 V/5 V rails |
| Power Consumption | 66 μA/MHz active mode; 0.57 μA in STOP mode with RTC + LVD enabled |
| Temperature Range | -40°C to +85°C (Industrial grade, "D" suffix implied by #V0 tray packaging and RL78/G13 D-grade availability) |
| Max Clock Frequency | 32 MHz via high-speed on-chip oscillator (±1.0% accuracy, 1.8–5.5 V, -20 to +85°C) |
Pinout & Package
Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch, exposed pad (PLQP0052JA-A). RoHS-compliant, lead-free, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports single-supply 1.6–5.5 V operation |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin enabling hardware SPI master/slave or I²C bus communication without GPIO bit-banging |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART receive / debug RX / I²C data | Shared serial interface pin reduces pin count while supporting multiple protocols (SPI, UART, I²C, debug) |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as analog input or ADC reference voltage source - enables ratiometric sensing or external reference use |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Supports differential ADC measurements or AVSS-based reference; critical for precision analog front-end design |
| RESET | Active-low reset input | Accepts external reset signals; internally tied to on-chip POR and LVD circuits for robust power-on and brown-out recovery |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA current draw with RTC and LVD active - enables multi-year battery life in metering and IoT endpoints |
| Self-programmable flash | Boot swap and flash shield window support secure firmware updates without external programmer or external memory |
| Background data flash rewrite | BGO allows full CPU execution from program memory during data flash write - eliminates interrupt latency during logging |
| Integrated temperature sensor | On-die sensor calibrated for ±2°C accuracy over -40°C to +85°C - enables thermal monitoring without external components |
| LIN bus support | UART peripheral includes LIN 2.1/2.2 frame generation and sync-break detection - simplifies automotive body electronics integration |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, LCD display, and RF/PLC communication. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and secure firmware updates. Use Value: 64 KB flash stores dual-application firmware (metering + comms); ultra-low STOP mode extends battery life beyond 10 years. |
Use Scenario: Wireless node collecting temperature, humidity, and vibration data in factory automation. IC Role / Device Role / Timing Role: Sensor fusion hub with 10-bit ADC oversampling, RTC-triggered wake-up, and UART-to-LoRaWAN bridge. Use Value: Integrated temperature sensor and 26-channel ADC reduce BOM cost; 0.57 μA STOP mode enables 5+ year coin-cell operation. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: MCU in washing machine control board managing motor drive, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time executor of PID motor control loops, keypad scanning, buzzer output, and fault logging. Use Value: 16-bit timers with dead-time insertion support BLDC commutation; LIN interface enables communication with display modules. |
Use Scenario: Distributed HVAC controller with zone sensors, actuator drivers, and Modbus RTU gateway. IC Role / Device Role / Timing Role: Protocol translator between analog sensor inputs, digital outputs, and RS-485 Modbus network. Use Value: Dual UARTs allow simultaneous local sensor polling and upstream Modbus communication; 4 KB RAM buffers protocol stacks efficiently. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JCAFA#V0 | Same 52-pin LQFP package and 64 KB flash, but includes 4 KB on-chip data flash (R5F100x series) | Required where frequent non-volatile parameter storage (e.g., calibration data, event logs) is needed without external EEPROM | Select R5F100JCAFA#V0 if data flash persistence is mandatory; R5F101JCAFA#V0 saves cost when flash writes are infrequent or handled externally |
| RL78/G14 R5F111JCDFA#V0 | Successor family with 128 KB flash, enhanced ADC (12-bit, 32 ch), and additional UART/I²C channels; same 52-pin LQFP-0.65mm footprint | Suitable for next-gen designs requiring higher code density, richer analog sensing, or expanded connectivity | Choose R5F111JCDFA#V0 for future-proofing or feature scaling; R5F101JCAFA#V0 remains optimal for cost-sensitive, stable-volume industrial programs |
Compared with R5F100JCAFA#V0, the R5F101JCAFA#V0 omits data flash to reduce cost and die size while retaining identical code flash, RAM, and peripheral count - ideal for fixed-parameter systems. Against R5F111JCDFA#V0, it trades newer features for proven reliability, lower unit cost, and mature toolchain support in established production lines.
Availability
R5F101JCAFA#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering systems, and home appliance control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101JCAFA#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 for industrial controls, consumer appliances, and sensor edge devices.
FAQ
What is the flash memory configuration of the R5F101JCAFA#V0?
The R5F101JCAFA#V0 contains 64 KB of on-chip code flash memory and no integrated data flash memory - consistent with the R5F101x series designation. This configuration is optimized for applications where firmware storage is primary and parameter retention is handled externally or via limited EEPROM emulation in code flash.
Does the R5F101JCAFA#V0 support LIN bus communication?
Yes, the R5F101JCAFA#V0 supports LIN 2.1/2.2 protocol through its UART peripheral, which includes dedicated sync-break generation and detection logic. This enables direct integration into automotive body electronics and industrial networks without external transceivers for basic LIN slave functionality.
What is the operating temperature range for the R5F101JCAFA#V0?
The R5F101JCAFA#V0 is rated for industrial operation from -40°C to +85°C. This is confirmed by its packaging code (#V0 tray) and alignment with RL78/G13 "D" grade availability per Renesas documentation, making it suitable for factory-floor and outdoor-deployed equipment.
How many analog input channels does the R5F101JCAFA#V0 support?
The R5F101JCAFA#V0 supports up to 26 analog input channels via its 10-bit successive-approximation ADC. Channel mapping includes P20–P27, P30–P37, P40–P47, and P50–P51, with selectable reference sources (AVREFP/AVREFM or internal 1.45 V) for flexible sensor interfacing.
Is the R5F101JCAFA#V0 pin-compatible with other RL78/G13 52-pin variants?
Yes, all RL78/G13 52-pin LQFP variants - including R5F100Jx and R5F101Jx families - share identical pinouts and package dimensions (PLQP0052JA-A). This allows drop-in replacement between flash/data flash configurations and temperature grades, provided PCB layout adheres to Renesas' recommended decoupling and thermal pad guidelines.
R5F101JCAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
R5F101JCAFA#V0 FAQ
1.How can I place an order for R5F101JCAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JCAFA#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 R5F101JCAFA#V0 reliable?
The price and inventory of R5F101JCAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JCAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101JCAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JCAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JCAFA#V0?
R5F101JCAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JCAFA#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 R5F101JCAFA#V0?
For technical support, including R5F101JCAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JCAFA#V0 requirements.
6.How does Aetrix verify that R5F101JCAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101JCAFA#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 R5F101JCAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F101JCAFA#V0?
All R5F101JCAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JCAFA#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 R5F101JCAFA#V0 part is unused and in its original packaging.
Return procedure for R5F101JCAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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