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Renesas R5F21265SNFP#V2
- Part No.:
- R5F21265SNFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21265SNFP#V2.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21265SNFP#V2 from Renesas Electronics is a 16-bit R8C/26 Group single-chip microcontroller with 24 KB flash ROM, 1.5 KB RAM, 12-channel 10-bit A/D converter, and integrated UART, I²C, LIN, and timer peripherals - used in embedded control of office equipment, consumer appliances, and automotive body electronics.
For engineers reviewing the R5F21265SNFP#V2 datasheet, R5F21265SNFP#V2 pinout, R5F21265SNFP#V2 application, or R5F21265SNFP#V2 equivalent, this page delivers verified specifications, package mapping, functional pin roles, real-world use cases, and validated alternative parts for design-in and BOM optimization.
Technical Context
The R5F21265SNFP#V2 implements the R8C CPU core with 89 fundamental instructions and executes at 20 MHz (50 ns min instruction time) under 3.0–5.5 V supply. It integrates three independent clock generation circuits: XIN-based crystal oscillator, high-speed/low-speed on-chip oscillators (with frequency adjustment), and XCIN/XCOUT 32 kHz RTC support (N/D version only).
Its peripheral set includes Timer RA/RB (8-bit × 2), Timer RC (16-bit input capture/output compare), Timer RE (real-time clock + compare match), two UART channels, one I²C bus interface, one clock-synchronous serial I/O with chip select, hardware LIN module (using Timer RA and UART0), and watchdog timer with 15-bit counter and prescaler.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions and 20 MHz max operation (50 ns min instruction time) |
| Memory | 24 KB on-chip flash ROM + 1.5 KB RAM - supports in-system programming without external HV supply |
| A/D Converter | 10-bit resolution, 12 analog input channels - enables direct sensor interfacing for temperature, voltage, and position sensing |
| Timers | Timer RA/RB (8-bit × 2), Timer RC (16-bit input capture/output compare), Timer RE (RTC + compare match) |
| Serial Interfaces | 2× UART, 1× I²C, 1× clock-synchronous serial I/O with chip select, 1× hardware LIN (UART0 + Timer RA) |
| Operating Range | -20°C to +85°C ambient, 2.2–5.5 V supply - qualified for standard industrial and consumer applications |
| Package | 32-pin LQFP (PLQP0032GB-A) - surface-mount compatible with 0.8 mm pitch and JEDEC-standard footprint |
Pinout & Package
32-pin molded-plastic LQFP (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm lead pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply input / ground | Primary digital power domain (2.2–5.5 V); VSS serves as reference for all digital logic and analog subsystems |
| AVCC / AVSS | Analog power supply input / ground | Dedicated low-noise analog supply for A/D converter - requires local decoupling capacitor |
| XIN / XOUT | External crystal/resonator interface | Supports 20 MHz crystal for main system clock; internal feedback resistor eliminates need for external load caps |
| RESET | Active-low reset input | Asynchronous hardware reset - pulls internal state to known condition; debounced externally per design requirements |
| P0_0–P0_7, P1_0–P1_7, etc. | General-purpose I/O ports | 25 configurable CMOS I/O pins + 3 input-only pins (P4_2, P4_6, P4_7); each pin individually direction-controllable via registers |
| AN0–AN11 | Analog input channels | 12 dedicated analog inputs mapped across P0/P1 ports - share pins with digital I/O but require analog mode configuration |
| RXD0 / TXD0 | UART0 data I/O | Full-duplex asynchronous serial communication channel - supports baud rates up to 1 Mbps at 20 MHz system clock |
| SCL / SDA | I²C bus interface | Open-drain bidirectional lines supporting standard/fast-mode I²C (100/400 kbps) - internal pull-up capability disabled by default |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LIN 2.0 module | Hardware-accelerated LIN transceiver using UART0 and Timer RA - eliminates software bit-banging and ensures protocol compliance |
| Real-time clock (RTC) support | Timer RE provides calendar/timekeeping with 32 kHz XCIN/XCOUT input - available only on N/D versions like R5F21265SNFP#V2 |
| Low-power operating modes | Wait mode (2.0 µA @ 3.0 V, f(XCIN)=32 kHz) and stop mode (0.7 µA @ 3.0 V) - enables battery-powered operation for >1 year |
| On-chip oscillators | High-speed and low-speed on-chip oscillators with frequency adjustment - reduces BOM cost and board space vs. external crystals |
| Flash endurance | 1,000 program/erase cycles - sufficient for field firmware updates and parameter storage in non-critical applications |
Applications
| Office Equipment Control | Consumer Appliance Interface |
|---|---|
Use Scenario: Embedded controller in multifunction printers managing paper feed, motor sequencing, and status LED drivers. IC Role / Device Role / Timing Role: Main system MCU executing real-time motor control loops, interpreting button inputs, and driving 8 LED segments via P1_0–P1_7. Use Value: Integrated 10-bit A/D monitors thermistor for fuser temperature; UART0 communicates with host PC; LIN optional for future accessory expansion. |
Use Scenario: Central control unit in smart microwave ovens handling keypad scanning, display backlight PWM, and cooking time tracking. IC Role / Device Role / Timing Role: Primary timing and I/O coordinator - uses Timer RC for precise cook-cycle timing and P0_0–P0_7 for 8-key matrix scan. Use Value: On-chip 32 kHz RTC (via XCIN/XCOUT) maintains accurate clock during standby; 24 KB flash stores multiple cooking profiles. |
| Automotive Body Electronics | Industrial Sensor Hub |
Use Scenario: Door module controller in entry-level vehicles managing window lift, lock actuation, and mirror positioning. IC Role / Device Role / Timing Role: LIN node MCU - implements ISO 17987-compliant physical layer using hardware LIN module (UART0 + Timer RA). Use Value: Eliminates external LIN transceiver IC; 12-channel A/D reads potentiometer feedback from mirror motors and hall sensors for window position. |
Use Scenario: Local sensor aggregator in HVAC systems collecting temperature, humidity, and airflow data from analog and digital sensors. IC Role / Device Role / Timing Role: Data acquisition engine - samples 12 analog sensors via A/D, formats packets over UART1, and timestamps events using Timer RE. Use Value: 1.5 KB RAM buffers 200+ sensor readings before transmission; I²C interface connects to digital humidity sensor (e.g., Sensirion SHT3x). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21264SNFP | 16 KB flash ROM, 1 KB RAM - 8 KB less program memory and 0.5 KB less RAM than R5F21265SNFP#V2 | Suitable for simpler firmware with fewer features or smaller code footprint; no change in peripheral set or pinout | Select when application firmware fits within 16 KB and RAM usage stays below 1 KB - reduces cost without sacrificing functionality. |
| R5F21266SNFP | 32 KB flash ROM, 1.5 KB RAM - adds 8 KB program memory while retaining identical RAM and peripherals | Enables larger feature sets, bootloader implementation, or dual-application partitioning (e.g., field-upgradable firmware + user config) | Choose when future firmware growth, OTA updates, or safety-certified dual-bank operation is required - same PCB layout and qualification effort. |
Compared with R5F21264SNFP and R5F21266SNFP, the R5F21265SNFP#V2 offers optimal balance of code space (24 KB), RAM (1.5 KB), and cost for mid-complexity embedded control - avoiding over-provisioning while ensuring headroom for feature enhancements.
Availability
R5F21265SNFP#V2 is available at Aetrix Electronics and suitable for office equipment control, consumer appliance interface, and automotive body electronics requiring stable component supply across multi-year production cycles.
Supply support for R5F21265SNFP#V2 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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The R8C/26 Group, including R5F21265SNFP#V2, was designed for cost-sensitive, low-to-mid complexity embedded control applications where reliability, integrated peripherals, and long-term supply stability are critical.
FAQ
What is the maximum operating frequency of the R5F21265SNFP#V2?
The R5F21265SNFP#V2 operates at up to 20 MHz with a minimum instruction execution time of 50 ns when supplied at 3.0–5.5 V. This frequency is achieved using the external XIN/XOUT crystal oscillator circuit; the on-chip high-speed oscillator supports adjustable frequencies but with lower accuracy.
Does the R5F21265SNFP#V2 include a real-time clock (RTC)?
Yes, the R5F21265SNFP#V2 includes Timer RE with real-time clock functionality, enabled via the XCIN/XCOUT 32 kHz crystal input - a feature specific to N and D versions like R5F21265SNFP#V2 and not available on J/K variants.
What are the key differences between R5F21265SNFP#V2 and R5F21265SDFP?
The R5F21265SNFP#V2 is rated for -20°C to +85°C operation (N version), while R5F21265SDFP is rated for -40°C to +85°C (D version). All electrical specifications, memory, peripherals, and pinout are identical - only the ambient temperature range differs.
Can the R5F21265SNFP#V2 drive LEDs directly?
Yes, the R5F21265SNFP#V2 supports direct LED driving on P1_0 through P1_7 - eight I/O pins configured as LED drive ports in N/D versions. Each pin provides sufficient sink/source current (typ. 20 mA) for common indicator LEDs without external drivers.
Is the R5F21265SNFP#V2 pin-compatible with other R8C/26 Group MCUs?
Yes, all R8C/26 Group devices in the PLQP0032GB-A (32-pin LQFP) package - including R5F21262SNFP, R5F21264SNFP, R5F21265SNFP#V2, and R5F21266SNFP - share identical pin assignments, electrical characteristics, and peripheral register maps.
R5F21265SNFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/26
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- LED, POR, Voltage Detect, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 24KB (24K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21265SNFP#V2 FAQ
1.How can I place an order for R5F21265SNFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21265SNFP#V2 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 R5F21265SNFP#V2 reliable?
The price and inventory of R5F21265SNFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21265SNFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21265SNFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21265SNFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21265SNFP#V2?
R5F21265SNFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21265SNFP#V2 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 R5F21265SNFP#V2?
For technical support, including R5F21265SNFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21265SNFP#V2 requirements.
6.How does Aetrix verify that R5F21265SNFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21265SNFP#V2 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 R5F21265SNFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21265SNFP#V2?
All R5F21265SNFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21265SNFP#V2, 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 R5F21265SNFP#V2 part is unused and in its original packaging.
Return procedure for R5F21265SNFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21265SNFP#V2 Tags
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