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Renesas R5F21265SNFP#10
- Part No.:
- R5F21265SNFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21265SNFP#10.pdf
- Description:
- 4-8BIT GENERAL MCU
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
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Product details
Overview
R5F21265SNFP#10 from Renesas Electronics is a 16-bit R8C/26 Group single-chip microcontroller with 24 KB flash ROM, 1.5 KB RAM, 10-bit 12-channel ADC, dual UART, I²C interface, hardware LIN module, and real-time clock timer (Timer RE). It operates at up to 20 MHz (50 ns min instruction time), supports 2.2–5.5 V supply, and targets embedded control in consumer and industrial applications requiring low-power operation and mixed-signal integration.
For engineers reviewing the R5F21265SNFP#10 datasheet, R5F21265SNFP#10 pinout, R5F21265SNFP#10 application, or R5F21265SNFP#10 equivalent, this page delivers verified technical context, validated pin functions, confirmed memory architecture, authentic low-power mode current specs (0.7 µA stop mode), and precise peripheral compatibility-enabling confident selection for appliance control, sensor interface, and LIN-based automotive subsystems.
Technical Context
The R5F21265SNFP#10 implements the R8C CPU core with 89 instructions, 1 Mbyte address space, and register bank switching (R0–R3, A0–A1, FB, INTB). It integrates three independent clock generation circuits: XIN oscillator (20 MHz max), high-speed on-chip oscillator with frequency adjustment, and XCIN 32 kHz circuit (N/D version only).
Peripheral integration 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 (UART0/UART1), one I²C bus interface, one clock synchronous serial I/O with chip select, hardware LIN (using Timer RA + UART0), and 25 I/O pins plus 3 dedicated input-only pins in a 32-pin LQFP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions and register bank switching |
| Flash ROM / RAM | 24 KB program flash (1,000 write/erase cycles) and 1.5 KB SRAM |
| ADC | 10-bit successive-approximation A/D converter with 12 analog inputs (AN0–AN11) |
| Timers | Timer RA/RB (8-bit ×2), Timer RC (16-bit), Timer RE (RTC + compare match) |
| Serial Interfaces | 2× UART, 1× I²C, 1× clock synchronous serial I/O with chip select, 1× hardware LIN |
| Supply & Temp | 2.2–5.5 V operation; -20°C to +85°C ambient (N version) |
| Power Modes | Wait mode (2.0 µA @ 3.0 V, f(XCIN)=32 kHz) and stop mode (0.7 µA @ 3.0 V) |
Pinout & Package
Package: 32-pin molded-plastic LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply input / ground | Primary digital power domain (2.2–5.5 V); AVCC/AVSS required for ADC reference stability |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers; requires external pull-up |
| XIN / XOUT | Crystal oscillator input/output | Supports 20 MHz crystal/resonator; enables main system clock generation |
| XCIN / XCOUT | 32 kHz crystal input/output | Available only on N/D versions; feeds Timer RE real-time clock and wait/stop mode timing |
| P0_0–P0_7, P1_0–P1_7, P3_1, P3_3–P3_7, P4_5, P5_3, P5_4 | CMOS I/O ports | 25 programmable bidirectional pins with individual direction control and optional pull-up resistors |
| P4_2, P4_6, P4_7 | Input-only ports | Dedicated analog/digital input pins; P4_7 is strictly input-only per datasheet note |
| AN0–AN11 | Analog inputs | 12-channel ADC input mapping across P0/P1 ports; shared with digital I/O functionality |
| UART0/UART1, SCL/SDA, SSI/SCS/SSCK, TRAO/TRBO/TRCIOx, TREO | Peripheral function pins | Multiplexed signals enabling simultaneous serial comms, LIN, PWM, input capture, and RTC output |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0-compliant transceiver logic using Timer RA and UART0-eliminates external LIN PHY for cost-sensitive automotive body electronics |
| Real-Time Clock (Timer RE) | Dedicated RTC with compare match function and 32 kHz crystal support (N/D versions)-enables accurate timekeeping during ultra-low-power stop mode (0.7 µA) |
| Low-Voltage Operation | 2.2 V minimum supply enables battery-powered designs including coin-cell and 2-cell alkaline systems without voltage boosting |
| On-Chip Oscillator Tuning | High-speed on-chip oscillator with software-adjustable frequency-reduces BOM count by eliminating external crystal in non-precision timing applications |
| 12-Channel 10-bit ADC | Simultaneous sampling not supported, but configurable trigger sources (timer, software, external) allow flexible sensor acquisition in home appliance motor control and environmental monitoring |
Applications
| Home Appliance Control | Automotive Body Electronics |
|---|---|
Use Scenario: Microcontroller in washing machine main control board managing motor drive, water valve sequencing, temperature sensing, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time motor commutation logic, ADC-based thermistor reading, and LIN communication with door lock module. Use Value: Integrated 12-channel ADC, hardware LIN, and 0.7 µA stop mode enable single-chip implementation with reduced external components and standby power compliance. |
Use Scenario: Seat control module coordinating lumbar adjustment, heating element duty cycle, and position memory via LIN bus. IC Role / Device Role / Timing Role: LIN slave node with local sensor interface (potentiometers, thermistors) and PWM-driven heater control using Timer RC output compare. Use Value: Hardware LIN reduces MCU firmware overhead; 24 KB flash accommodates EEPROM-emulation routines for seat position storage without external memory. |
| Industrial Sensor Interface | Office Equipment Motor Control |
Use Scenario: Smart HVAC sensor node measuring temperature, humidity, and CO₂, transmitting data over UART to gateway. IC Role / Device Role / Timing Role: Data acquisition engine with 10-bit ADC oversampling, UART protocol stack, and low-power wake-on-interrupt operation. Use Value: 2.2 V operation extends battery life in wireless nodes; integrated voltage detection and watchdog ensure robust field reliability. |
Use Scenario: Paper feed and scanner motor controller in multifunction printers requiring precise speed regulation and stall detection. IC Role / Device Role / Timing Role: Motion controller using Timer RC input capture for encoder feedback and PWM output for DC motor drive. Use Value: 16-bit Timer RC with input capture provides sub-millisecond timing resolution for closed-loop speed control without external timers. |
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, 1 KB RAM - 8 KB less program memory and 0.5 KB less RAM than R5F21265SNFP#10 | Suitable for simpler firmware with smaller code footprint and fewer runtime variables | Select when application code size remains under 14 KB and RAM usage stays below 900 bytes to reduce cost without sacrificing N-version temp range. |
| R5F21266SNFP | 32 KB flash, 1.5 KB RAM - 8 KB more program memory, same RAM and peripheral set | Required for complex protocols (e.g., full USB HID stack), larger GUI buffers, or field-upgradable firmware images | Choose when future firmware expansion, OTA updates, or dual-bank bootloading are planned - maintains identical pinout and electrical behavior. |
Compared with R5F21264SNFP and R5F21266SNFP, the R5F21265SNFP#10 offers optimal balance of code space (24 KB) and cost for mid-complexity embedded control-providing headroom beyond R5F21264SNFP while avoiding the premium of R5F21266SNFP's excess flash capacity.
Availability
R5F21265SNFP#10 is available at Aetrix Electronics and suitable for home appliance control, automotive body electronics, and industrial sensor interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F21265SNFP#10 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 automotive, industrial, and IoT markets.
The R8C/26 Group-including R5F21265SNFP#10-is designed for cost-sensitive, low-power embedded control in consumer electronics and automotive body applications, emphasizing integrated peripherals, flash endurance, and wide operating voltage range.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for R5F21265SNFP#10?
The R5F21265SNFP#10 achieves a minimum instruction execution time of 50 ns at 20 MHz, requiring VCC = 3.0 to 5.5 V. It also supports lower frequencies down to 5 MHz at 2.2 V (N version), enabling flexible power/performance trade-offs in battery-operated designs without compromising functionality.
Does R5F21265SNFP#10 include on-chip data flash memory?
No, the R5F21265SNFP#10 belongs to the R8C/26 Group, which contains only program flash memory (24 KB). Data flash (1 KB × 2 blocks) is exclusive to the R8C/27 Group (e.g., R5F21275SNFP). For EEPROM emulation, users must implement wear-leveling in the main flash using Renesas-provided application notes.
Which package type and pin count does R5F21265SNFP#10 use?
The R5F21265SNFP#10 uses a 32-pin molded-plastic LQFP package designated PLQP0032GB-A (7 mm × 7 mm, 0.8 mm pitch). This matches all R8C/26 and R8C/27 Group devices, ensuring PCB layout compatibility across the family for design reuse.
Can R5F21265SNFP#10 operate with a 32 kHz crystal for real-time clock functionality?
Yes-R5F21265SNFP#10 supports 32 kHz crystal operation via XCIN/XCOUT pins, but only in N and D versions (denoted by "N" or "D" in the part number suffix). The "N" in R5F21265SNFP#10 confirms XCIN/XCOUT capability, enabling Timer RE to function as a precision real-time clock during ultra-low-power stop mode.
What is the qualified temperature range for R5F21265SNFP#10?
The R5F21265SNFP#10 is an N-version device, qualified for operation from -20°C to +85°C ambient temperature. This rating aligns with Renesas' "Standard" quality grade, making it suitable for consumer electronics, office equipment, and industrial robots-not for automotive powertrain or safety-critical medical applications.
R5F21265SNFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/26
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 5MHz
- 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:
- External, Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21265SNFP#10 FAQ
1.How can I place an order for R5F21265SNFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21265SNFP#10 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#10 reliable?
The price and inventory of R5F21265SNFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21265SNFP#10 is usually 5 days.
3.What payment methods are accepted for R5F21265SNFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21265SNFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21265SNFP#10?
R5F21265SNFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21265SNFP#10 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#10?
For technical support, including R5F21265SNFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21265SNFP#10 requirements.
6.How does Aetrix verify that R5F21265SNFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F21265SNFP#10 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#10 meets industry standards.
7.What is the process for return or replacement of R5F21265SNFP#10?
All R5F21265SNFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21265SNFP#10, 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#10 part is unused and in its original packaging.
Return procedure for R5F21265SNFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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