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Renesas R5F101PFAFA#50
- Part No.:
- R5F101PFAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F101PFAFA#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:750
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Product details
Overview
R5F101PFAFA#50 from Renesas is a 100-pin LQFP-0.65mm microcontroller in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 KB RAM, and an RL78 CPU core operating up to 32 MHz (41 DMIPS). It delivers ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode) and supports industrial temperature range (−40°C to +85°C) for embedded control in metering and sensor nodes.
For engineers reviewing the R5F101PFAFA#50 datasheet, R5F101PFAFA#50 pinout, R5F101PFAFA#50 application, or R5F101PFAFA#50 equivalent, key selection criteria include its 100-pin LQFP package, absence of on-chip data flash (confirmed by "101" suffix), integrated 10-bit ADC (26 channels), real-time clock with calendar, and dual UART/LIN support for robust serial communication in resource-constrained industrial systems.
Technical Context
The R5F101PFAFA#50 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 subsystem clock). It integrates a 12-bit interval timer, 16-bit timer array (16 channels), and hardware multiplier/divider for efficient signal processing.
Power management includes HALT, STOP, and SNOOZE modes, POR, and 14-level LVD with interrupt/reset selection. Serial interfaces comprise up to 4 UART/LIN channels, 10 I²C/Simplified I²C channels, and 8 CSI (SPI-compatible) channels - all configurable per pin function mapping in the 100-pin LQFP layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 CISC, 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash; no data flash (R5F101x series) |
| RAM | 4 KB on-chip SRAM for program/data storage |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference |
| Timers | 16 × 16-bit timers, 1 × 12-bit interval timer, 1 × RTC with calendar/alarm |
| Serial Interfaces | 4 × UART/LIN, 10 × I²C/Simplified I²C, 8 × CSI (SPI-compatible) |
| Supply Voltage | 1.6 V to 5.5 V single supply; operates across full industrial temp range (−40°C to +85°C) |
Pinout & Package
Package: 100-pin LQFP (14 × 20 mm, 0.65-mm pitch), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O (with UART0/CSI0/I²C0 functions) | Configurable GPIO with alternate functions; supports LIN bus via UART0 |
| P20–P27 | Port 2 I/O (with ADC inputs ANI0–ANI7) | Analog input capability for sensor interfacing; AVREFP/AVREFM pins enable precise ADC reference |
| P30–P37 | Port 3 I/O (with UART1/CSI1/I²C1) | Dual UART support enables master-slave or diagnostic communication paths |
| P40–P47 | Port 4 I/O (with 16-bit timer TPU0–TPU7) | High-resolution PWM generation and input capture for motor/servo control |
| P50–P57 | Port 5 I/O (with RTC, LVD, clock output) | Real-time clock calendar operation and low-voltage detection with interrupt capability |
| VDD, VSS | Power supply and ground | Multiple dedicated VDD/VSS pairs ensure stable core/peripheral operation at 32 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT/STOP/SNOOZE reduce current to ≤0.57 μA while retaining RTC and LVD functionality |
| On-chip debug | Fully integrated debug interface enables in-circuit programming and real-time trace without external probes |
| Self-programming flash | Boot swap and flash shield window allow secure firmware updates without external programmer |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate control algorithms |
| DMA controller | 4-channel DMA reduces CPU load during peripheral-to-memory transfers (e.g., ADC → RAM) |
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 managing metrology ADC sampling, RTC-based billing intervals, and UART-driven NB-IoT modem interface. Use Value: 64 KB flash accommodates metrology firmware + communication stack; ultra-low STOP-mode current extends battery life beyond 10 years. |
Use Scenario: Distributed factory-floor temperature/humidity/pressure node with local logging and RS-485 gateway. IC Role / Device Role / Timing Role: Data acquisition hub synchronizing multi-channel 10-bit ADC reads, timestamping with RTC calendar, and buffering to external EEPROM via I²C. Use Value: 26 ADC channels and 4 UARTs enable concurrent sensor polling and wired backhaul; −40°C to +85°C rating ensures reliability in unconditioned environments. |
| 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: Real-time task scheduler coordinating PWM motor control (TPU timers), touch-key scanning (key interrupt), and buzzer feedback (clock output). Use Value: Integrated 16-bit timers and on-chip buzzer controller eliminate external timing ICs; N-ch open-drain I/O safely interfaces with 3.3 V/5 V peripherals. |
Use Scenario: HVAC zone controller with thermostat input, relay outputs, CAN/LIN diagnostics, and LCD display. IC Role / Device Role / Timing Role: Central coordinator managing analog sensor conditioning, relay timing (TPU), LIN communication with master panel, and RTC-scheduled maintenance alerts. Use Value: LIN support enables standardized automotive-grade diagnostics; 100-pin LQFP provides ample I/O for mixed analog/digital/communication signals in compact panels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PFAFA#50 | 64 KB flash + 4 KB data flash; same package, pinout, and peripherals | Enables field firmware updates via data flash BGO writes | Select when non-volatile parameter storage or over-the-air update capability is required |
| R5F101PGAFA#50 | Same 64 KB flash, 4 KB RAM, 100-pin LQFP, but 96 KB flash variant (R5F101PGx) | Higher flash capacity supports larger protocol stacks (e.g., Modbus TCP + web server) | Choose for future-proofing or complex connectivity requirements where extra 32 KB flash is utilized |
Compared with R5F100PFAFA#50 and R5F101PGAFA#50, the R5F101PFAFA#50 offers identical footprint and peripheral set but omits data flash-reducing cost and complexity where parameter retention isn't needed-while providing sufficient code space for most industrial control tasks without requiring flash expansion.
Availability
R5F101PFAFA#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply, long-lifecycle support, and industrial-grade temperature performance.
Supply support for R5F101PFAFA#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to deliver high integration, robust peripheral sets, and energy efficiency for battery-operated and mains-powered industrial controls.
FAQ
What is the flash memory configuration of the R5F101PFAFA#50?
The R5F101PFAFA#50 contains 64 KB of on-chip code flash memory and no data flash memory. This is confirmed by the "101" in the part number, which denotes data flash omission per Renesas' RL78/G13 naming convention. The device supports self-programming via boot swap and flash shield window features for secure firmware updates.
Does the R5F101PFAFA#50 support LIN bus communication?
Yes, the R5F101PFAFA#50 supports LIN bus communication through its UART peripherals-specifically UART0 and UART1, both of which include LIN-break-detection and sync-byte handling per LIN 2.x specifications. This capability is enabled in hardware and requires no external transceiver for basic node implementation.
What is the operating temperature range for the R5F101PFAFA#50?
The R5F101PFAFA#50 is rated for industrial operation from −40°C to +85°C, as indicated by the "A" suffix in its ordering code (R5F101PFAFA#50). This qualifies it for use in harsh environments such as factory automation, utility metering, and outdoor building controls without thermal derating.
How many ADC channels does the R5F101PFAFA#50 provide, and what is their resolution?
The R5F101PFAFA#50 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25). It includes internal 1.45 V reference voltage and supports differential input modes, enabling accurate sensor signal acquisition across its full 1.6 V to 5.5 V supply range.
Is the R5F101PFAFA#50 pin-compatible with other RL78/G13 100-pin variants?
Yes, the R5F101PFAFA#50 shares identical 100-pin LQFP (14 × 20 mm, 0.65-mm pitch) mechanical dimensions and pinout with all other RL78/G13 devices in the same package-including R5F100PFAFA#50 and R5F101PGAFA#50-enabling drop-in replacement within the same footprint when flash/RAM requirements align.
R5F101PFAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 82
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 20x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101PFAFA#50 FAQ
1.How can I place an order for R5F101PFAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101PFAFA#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 R5F101PFAFA#50 reliable?
The price and inventory of R5F101PFAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101PFAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F101PFAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101PFAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101PFAFA#50?
R5F101PFAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101PFAFA#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 R5F101PFAFA#50?
For technical support, including R5F101PFAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101PFAFA#50 requirements.
6.How does Aetrix verify that R5F101PFAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F101PFAFA#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 R5F101PFAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F101PFAFA#50?
All R5F101PFAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101PFAFA#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 R5F101PFAFA#50 part is unused and in its original packaging.
Return procedure for R5F101PFAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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