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Renesas R5F101FJAFP#50
- Part No.:
- R5F101FJAFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FJAFP#50.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:998
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Product details
Overview
R5F101FJAFP#50 from Renesas is a 44-pin LQFP-44, 32 MHz RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB data flash, 8 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (24 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101FJAFP#50 datasheet, R5F101FJAFP#50 pinout, R5F101FJAFP#50 application, or R5F101FJAFP#50 equivalent, key selection criteria include its 44-pin LQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade, and support for SNOOZE mode wake-up via serial interface events.
Technical Context
The R5F101FJAFP#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space, with dedicated 96 KB code flash and 8 KB RAM - no data flash (confirmed by "101" prefix per datasheet Section 1.2).
Power management includes HALT, STOP, and SNOOZE modes; voltage detection (LVD) offers 14 selectable levels; and the real-time clock supports calendar (99-year), alarm, and clock correction functions. Peripheral set includes up to 24-channel 10-bit ADC, 8× 16-bit timers, 3× I²C, 2× UART (LIN-capable), and 2× CSI (SPI-compatible) channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 96 KB code flash only - no embedded data flash (R5F101x series) |
| RAM | 8 KB on-chip SRAM for program/data storage and stack operations |
| Operating Voltage | 1.6 V to 5.5 V - enables direct Li-ion, 3.3 V, or 5 V rail interfacing |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| ADC | 10-bit resolution, 24 analog input channels, internal 1.45 V reference |
| Timers | Eight 16-bit timers, one 12-bit interval timer, one calendar RTC with alarm |
| Serial Interfaces | Two UART (LIN-supported), three I²C, two CSI (SPI-compatible) channels |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, plastic body with exposed thermal pad (PLQP0044GC-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: AVDD/AVSS for analog peripherals, DVDD/DVSS for digital core |
| P10–P17, P20–P27, P30–P37, P40–P43 | General-purpose I/O | Configurable as CMOS input/output, N-ch open-drain (6 V tolerant), or with pull-up; supports 1.8/2.5/3.3 V level shifting |
| P10/SCK00/SCL00 | Multi-function pin | Shared SPI clock (SCK00) or I²C clock (SCL00); requires software configuration at reset |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pin | Supports SPI input (SI00), UART receive (RxD0), debug tool RX (TOOLRxD), or I²C data (SDA00) |
| P20/ANI0/AVREFP | Analog input / reference | Primary ADC channel 0 input and positive analog reference voltage terminal |
| P21/ANI1/AVREFM | Analog input / reference | ADC channel 1 input and negative analog reference voltage terminal |
| RESET | Active-low reset input | Asynchronous external reset; triggers POR/LVD-initiated internal reset sequence |
| CLKP/CLKN | Crystal oscillator terminals | Supports 32.768 kHz crystal for RTC or external clock source up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode operation | Permits UART/I²C/CSI peripherals to remain active while CPU sleeps - reduces system wake latency without full wake-up current penalty |
| On-chip voltage detector (LVD) | 14 programmable threshold levels enable precise brown-out detection and graceful shutdown before flash write corruption |
| Background operation (BGO) | Not applicable - R5F101x lacks data flash; BGO is exclusive to R5F100x series with data flash |
| Real-time clock (RTC) | Full calendar (year/month/day/hour/min/sec), alarm interrupt, and ±1 ppm clock correction via 32.768 kHz crystal calibration |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and sensor fusion math |
| Key interrupt function | Dedicated hardware detects falling/rising edges on up to 8 I/O pins - eliminates polling overhead in keypad or switch monitoring |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, tamper detection, and wireless backhaul. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing EEPROM-less parameter storage in flash, and driving optical/IR communication. Use Value: Ultra-low STOP-mode current (0.57 μA) extends battery life >10 years; RTC maintains accurate billing timestamps during mains outage. | Use Scenario: Wireless temperature/humidity/pressure node in factory automation or HVAC ducts. IC Role / Device Role / Timing Role: Signal acquisition hub sampling analog sensors, performing local compensation, and formatting data for BLE/Zigbee transmission. Use Value: 24-channel 10-bit ADC supports multi-sensor analog front-end; SNOOZE mode allows UART wake-on-frame for low-latency command response. |
| Home Appliance Control | Medical Wearable Monitor |
Use Scenario: MCU in washing machine control board managing motor drive, water valves, display, and safety interlocks. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM motor control, touch UI scanning, and fault logging to flash. Use Value: Eight 16-bit timers provide independent timing for motor phase control, buzzer output, and watchdog supervision - eliminating external timing ICs. | Use Scenario: Portable ECG/SpO₂ patch with continuous biosignal acquisition and Bluetooth LE reporting. IC Role / Device Role / Timing Role: Low-power signal processor acquiring analog bio-potentials, applying digital filtering, and managing secure BLE connection. Use Value: 1.6–5.5 V operating range accommodates single-cell LiPo (3.0–4.2 V); integrated temperature sensor enables on-chip thermal drift compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FJAFP#50 | Same package and pinout; includes 4 KB data flash and 4 KB additional RAM (12 KB total) | Required where background data logging or firmware update staging is needed | Select when non-volatile parameter storage beyond code flash is mandatory |
| RL78/G14 R5F104GJAFP#50 | Enhanced RL78/G14 core: higher 48 MHz max frequency, 128 KB flash, 16 KB RAM, added USB and CAN | Needed for USB device connectivity or CAN bus integration in next-gen designs | Choose for future-proofing with USB/CAN or increased processing headroom |
Compared with R5F101FJAFP#50, R5F100FJAFP#50 adds data flash for robust field updates but increases cost and power in STOP mode; RL78/G14 R5F104GJAFP#50 delivers USB/CAN and higher performance at expense of larger footprint and higher active current - making R5F101FJAFP#50 optimal for cost-sensitive, battery-constrained general-purpose control.
Availability
R5F101FJAFP#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and medical wearable monitors requiring stable component supply across long production lifecycles.
Supply support for R5F101FJAFP#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC 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, and energy-efficient embedded systems - balancing performance, peripheral richness, and sub-μA standby operation.
FAQ
Does R5F101FJAFP#50 include on-chip data flash memory?
No, R5F101FJAFP#50 does not include on-chip data flash memory. The "101" in the part number explicitly denotes absence of data flash per Renesas RL78/G13 datasheet Section 1.2. It provides 96 KB code flash and 8 KB RAM only. For data flash capability, consider R5F100FJAFP#50 (4 KB data flash) or R5F100GJAFP#50 (8 KB data flash).
What is the maximum operating frequency and corresponding power consumption of R5F101FJAFP#50?
R5F101FJAFP#50 operates up to 32 MHz using the high-speed on-chip oscillator (±1.0% accuracy). At this frequency and 3.3 V supply, active current is 66 μA/MHz - resulting in ~2.1 mA typical active current. In STOP mode with RTC and LVD enabled, it draws just 0.57 μA, verified per datasheet Rev.3.80 Section 1.1.
Which serial communication interfaces are supported by R5F101FJAFP#50?
R5F101FJAFP#50 supports two UART channels (with LIN-bus protocol support), three I²C channels, and two CSI channels (SPI-compatible serial interfaces). All are configurable via dedicated peripheral registers and share I/O pins with GPIO functionality - enabling flexible routing in PCB layout.
Is R5F101FJAFP#50 pin-compatible with other RL78/G13 variants in the same package?
Yes, R5F101FJAFP#50 is pin-compatible with all RL78/G13 devices in the 44-pin LQFP package (e.g., R5F100FJAFP#50, R5F101GJAFP#50), sharing identical pin count, mechanical footprint (PLQP0044GC-A), and I/O mapping. Functional differences (e.g., data flash presence, RAM size) do not affect pin assignment or electrical behavior of shared signals.
What temperature grade does R5F101FJAFP#50 support, and how is it indicated in the part number?
R5F101FJAFP#50 supports the industrial temperature range of –40°C to +85°C, denoted by the "D" suffix in the full ordering code (e.g., R5F101FJADFP#50). However, the "FJ" variant with "AFP" package uses "A" grade (–40°C to +85°C consumer/industrial) per Table 1-1 - confirmed by Renesas documentation listing R5F101FJAFP#50 under "A" field-of-application column.
R5F101FJAFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 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#50 FAQ
1.How can I place an order for R5F101FJAFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FJAFP#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 R5F101FJAFP#50 reliable?
The price and inventory of R5F101FJAFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FJAFP#50 is usually 5 days.
3.What payment methods are accepted for R5F101FJAFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FJAFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FJAFP#50?
R5F101FJAFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FJAFP#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 R5F101FJAFP#50?
For technical support, including R5F101FJAFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FJAFP#50 requirements.
6.How does Aetrix verify that R5F101FJAFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F101FJAFP#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 R5F101FJAFP#50 meets industry standards.
7.What is the process for return or replacement of R5F101FJAFP#50?
All R5F101FJAFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FJAFP#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 R5F101FJAFP#50 part is unused and in its original packaging.
Return procedure for R5F101FJAFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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