Renesas R5F101FJAFP#30
- Part No.:
- R5F101FJAFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FJAFP#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F101FJAFP#30 from Renesas is a 44-pin LQFP-packaged RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB data flash, and 8 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes, integrated RTC, 10-bit ADC (24 channels), and UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101FJAFP#30 datasheet, R5F101FJAFP#30 pinout, R5F101FJAFP#30 application, or R5F101FJAFP#30 equivalent, key selection criteria include its 44-pin LQFP-0.8mm package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for background data flash rewriting via BGO.
Technical Context
The R5F101FJAFP#30 implements the RL78 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 subsystem clock), and features a 1 MB address space with four banks of 8-bit general-purpose registers. It integrates a 12-bit interval timer, real-time clock with calendar/alarm/correction, and watchdog timer powered by a dedicated low-speed oscillator.
Its peripheral set includes up to 24-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 8× 16-bit timers, 3–10-channel I²C/Simplified I²C, 2–4-channel UART/LIN, and 2–8-channel CSI (SPI-compatible serial interface), all configurable under single-supply operation from 1.6 V to 5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with selectable high-speed on-chip oscillator (±1.0% accuracy) |
| Memory Configuration | 96 KB code flash, 0 KB data flash (R5F101x series), 8 KB RAM |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct Li-ion, 3.3 V, or 5 V system integration without level-shifting |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - optimized for intermittent sensing |
| Analog Peripherals | 10-bit ADC with 24 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Digital Interfaces | UART/LIN (2–4 ch), I²C/Simplified I²C (3–10 ch), CSI (2–8 ch), 16-bit timer (8–16 ch) |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, industrial-grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared dual-function pin supporting synchronous serial master/slave timing or I²C bus clock generation |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / I²C data | Multi-protocol pin enabling SPI data-in, UART RX, or I²C bidirectional data line - reduces external logic |
| P12/SO00/TxD0/TOOLTxD | SPI output / UART transmit | Configurable as SPI data-out or full-duplex UART TX; TOOL pins support on-chip debug communication |
| P13/INTP0/CLK0 | External interrupt / clock input | Accepts external event triggers or external clock source for timer synchronization or frequency measurement |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog channel input and selectable positive reference for ADC - supports ratiometric sensor measurements |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Secondary analog input and optional negative reference - enables differential ADC configurations |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - extends battery life in maintenance-free IoT nodes |
| Background data flash rewrite | BGO allows concurrent program execution and data flash updates - enables field firmware patching without halting control loop |
| Integrated real-time clock | Calendar function (99-year range), alarm, and clock correction - eliminates external RTC IC and backup battery |
| Multi-protocol serial interface | Single pinset supports UART, I²C, and CSI - simplifies PCB routing and reduces external transceiver count |
| On-chip voltage detector | 14-level LVD with interrupt/reset options - provides precise brown-out protection across wide supply range |
| Different-potential I/O | Supports 1.8 V/2.5 V/3 V interface directly - enables mixed-voltage system interconnect without level shifters |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, tamper detection, and periodic RF upload. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based billing intervals, and UART-to-PLC/RF modem communication. Use Value: 0.57 μA STOP mode preserves battery for >10 years; integrated RTC eliminates external timekeeping components. |
Use Scenario: Wireless temperature/humidity/pressure node in factory automation with local logging and BLE gateway sync. IC Role / Device Role / Timing Role: Sensor hub aggregating analog inputs, executing calibration algorithms, and scheduling low-duty-cycle radio bursts. Use Value: 24-channel 10-bit ADC captures multi-sensor data simultaneously; BGO enables seamless firmware updates during idle periods. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main board controlling motor drivers, water valves, display, and user interface. IC Role / Device Role / Timing Role: System-on-chip managing PWM motor control, touch-key scanning, LED backlight dimming, and fault monitoring. Use Value: 8× 16-bit timers provide precise motor phase timing; 16–120 I/O pins scale to complex HMI and actuator sets. |
Use Scenario: HVAC zone controller with temperature setpoint adjustment, damper actuation, and Modbus RTU communication. IC Role / Device Role / Timing Role: Protocol-aware controller handling RS-485 Modbus framing, analog sensor conditioning, and relay timing sequences. Use Value: UART/LIN + I²C support enables dual-bus connectivity; 1.6–5.5 V operation tolerates unregulated 24 V DC supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FJAFP#30 | Includes 4 KB data flash; otherwise identical flash/RAM/peripherals/package | Required where nonvolatile parameter storage (e.g., calibration data, device ID) must survive power loss | Select R5F100FJAFP#30 if data flash persistence is needed; R5F101FJAFP#30 reduces cost where only code flash suffices |
| RL78/G14 R5F11FJAFP#30 | Enhanced RL78/G14 core: 64 KB RAM, 512 KB flash, USB 2.0, higher ADC resolution (12-bit) | Targeted at feature-rich HMI, USB-connected diagnostics, or high-precision metrology | Choose RL78/G14 only when USB, larger RAM, or extended flash is required - not drop-in compatible |
Compared with R5F100FJAFP#30, R5F101FJAFP#30 removes data flash to lower unit cost and power in fixed-function deployments; versus RL78/G14, it trades USB and memory headroom for proven reliability and lower BOM cost in established industrial designs.
Availability
R5F101FJAFP#30 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation systems requiring stable component supply across long product lifecycles.
Supply support for R5F101FJAFP#30 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, integration, and energy efficiency for battery-operated and energy-harvesting systems.
FAQ
Does R5F101FJAFP#30 include on-chip data flash memory?
No, R5F101FJAFP#30 does not include on-chip data flash memory. The "101" in the part number explicitly denotes zero data flash capacity, distinguishing it from the "100" series (e.g., R5F100FJAFP#30) which includes 4 KB. This design reduces cost and power consumption for applications that store configuration or calibration data externally or in code flash segments.
What is the operating temperature range for R5F101FJAFP#30?
R5F101FJAFP#30 is rated for industrial operation from –40°C to +85°C. The "D" in the ordering code (R5F101FJAFP#30 = R5F101FJ A F P #30 → D-grade) confirms this specification. It is not qualified for the extended –40°C to +105°C (G-grade) range used in under-hood automotive or high-ambient industrial environments.
Which package type and footprint does R5F101FJAFP#30 use?
R5F101FJAFP#30 uses a 44-pin plastic LQFP package with 10 mm × 10 mm body size and 0.8 mm lead pitch (RENESAS Code PLQP0044GC-A). Its footprint matches JEDEC MS-026 standard, enabling compatibility with common reflow profiles and automated assembly processes in industrial PCB manufacturing.
Can R5F101FJAFP#30 operate from a single 1.8 V supply?
Yes, R5F101FJAFP#30 supports operation from 1.6 V to 5.5 V, including 1.8 V nominal supplies. At 1.8 V, maximum operating frequency is reduced per datasheet limits (typically ≤ 8 MHz), but all peripherals - including ADC, RTC, and serial interfaces - remain fully functional, enabling direct integration with low-voltage energy-harvesting sources.
Is R5F101FJAFP#30 pin-compatible with other RL78/G13 44-pin variants?
Yes, R5F101FJAFP#30 shares identical pinout and electrical characteristics with all other 44-pin RL78/G13 LQFP variants (e.g., R5F100FJAFP#30, R5F101FJDFP#30), regardless of flash/RAM configuration or data flash presence. Pin functions, drive strength, and voltage tolerances are consistent across the family, enabling hardware reuse across firmware variants.
R5F101FJAFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 31
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101FJAFP#30 FAQ
1.How can I place an order for R5F101FJAFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FJAFP#30 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 R5F101FJAFP#30 reliable?
The price and inventory of R5F101FJAFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FJAFP#30 is usually 5 days.
3.What payment methods are accepted for R5F101FJAFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FJAFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FJAFP#30?
R5F101FJAFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FJAFP#30 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 R5F101FJAFP#30?
For technical support, including R5F101FJAFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FJAFP#30 requirements.
6.How does Aetrix verify that R5F101FJAFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F101FJAFP#30 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 R5F101FJAFP#30 meets industry standards.
7.What is the process for return or replacement of R5F101FJAFP#30?
All R5F101FJAFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FJAFP#30, 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 R5F101FJAFP#30 part is unused and in its original packaging.
Return procedure for R5F101FJAFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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