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Renesas R5F21262SNFP#10
- Part No.:
- R5F21262SNFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21262SNFP#10.pdf
- Description:
- R8C MCU 3/5V 8K 32-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,661
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Product details
Overview
R5F21262SNFP#10 from Renesas Electronics is a 16-bit R8C/26 Group single-chip microcontroller with 8 KB flash ROM, 512 bytes RAM, 12-channel 10-bit A/D converter, UART0/UART1 serial interfaces, and Timer RA/RB/RC/RE - deployed in consumer appliance control, office equipment motor management, and industrial sensor interface applications.
For engineers reviewing the R5F21262SNFP#10 datasheet, R5F21262SNFP#10 pinout, R5F21262SNFP#10 application, or R5F21262SNFP#10 equivalent, this page delivers verified electrical specs, validated 32-pin LQFP package mapping, confirmed N-version temperature range (−20 to +85°C), and real-world use context for embedded firmware integration and BOM replacement decisions.
Technical Context
The R5F21262SNFP#10 implements the R8C CPU core with 89 fundamental instructions and executes at 50 ns minimum instruction time (20 MHz XIN, 3.0–5.5 V). It integrates three 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).
Peripheral resources include 25 I/O pins + 3 input-only pins, 8-bit Timer RA/RB with prescaler, 16-bit Timer RC with input capture/output compare, Timer RE with real-time clock and compare match, two UART channels, one I²C bus interface, hardware LIN module (using Timer RA and UART0), and watchdog timer with 15-bit counter and start-on-reset selectability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit architecture with 89 instructions and 1 Mbyte address space |
| Flash ROM / RAM | 8 KB program flash memory and 512 bytes SRAM - sufficient for mid-complexity appliance control firmware |
| A/D Converter | 10-bit resolution, 12 input channels - supports analog sensor acquisition across multiple subsystems |
| Timers | Timer RA/RB (8-bit × 2), Timer RC (16-bit × 1 with capture/compare), Timer RE (RTC + compare match) |
| Serial Interfaces | UART0/UART1 (2 channels), I²C bus interface, clock synchronous serial I/O with chip select, hardware LIN |
| Operating Voltage / Temp | 2.2–5.5 V supply; −20 to +85°C ambient (N version) - suitable for non-automotive industrial environments |
| Package | 32-pin molded-plastic LQFP (PLQP0032GB-A) - standard surface-mount footprint with 0.8 mm pitch |
Pinout & Package
Package: 32-pin 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 | Core logic and I/O domain supply (2.2–5.5 V); AVCC/AVSS required separately for A/D reference stability |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers - must be held low ≥100 ns for valid reset |
| XIN / XOUT | Crystal oscillator input / output | Supports 20 MHz max external crystal; internal feedback resistor enables direct crystal connection without external components |
| 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 software-configurable pull-up resistors |
| AN0–AN11 | Analog inputs | 12 dedicated A/D input channels mapped across P0/P1 ports - share pins with digital I/O but require analog mode configuration |
| TXD0 / RXD0 | UART0 transmit / receive | Full-duplex asynchronous serial communication at up to 20 Mbps (dependent on clock source and divisor settings) |
| SCL / SDA | I²C bus clock / data | Open-drain I²C interface compliant with standard-mode (100 kbps) and fast-mode (400 kbps) specifications |
Key Features
| Feature | Design Value |
|---|---|
| On-chip oscillators | High-speed and low-speed on-chip oscillators with frequency adjustment - eliminates need for external timing components in many designs |
| Real-time clock support | XCIN/XCOUT 32 kHz crystal interface (N/D version) enables battery-backed RTC operation independent of main system clock |
| Hardware LIN transceiver | Dedicated LIN module using Timer RA and UART0 - reduces CPU load and ensures protocol compliance for automotive sub-networks |
| Low-power modes | Wait mode (2.0 µA @ 3.0 V, f(XCIN)=32 kHz) and stop mode (0.7 µA @ 3.0 V) - extends battery life in portable or energy-sensitive systems |
| Interrupt architecture | 7 priority levels, 15 internal + 4 external + 4 software interrupt sources - enables deterministic real-time response for multi-tasking firmware |
Applications
| Home Appliance Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Temperature-regulated cooking cycle in microwave ovens with user interface feedback and safety interlocks. IC Role / Device Role / Timing Role: Main system controller executing closed-loop thermal management, keypad scanning, display update, and fault monitoring. Use Value: Integrated 12-channel A/D enables simultaneous thermistor, current-sense, and voltage monitoring; UART0 supports diagnostic logging via service port. |
Use Scenario: Precision paper feed and jam detection in laser printers with stepper motor sequencing and sensor fusion. IC Role / Device Role / Timing Role: Real-time motion controller coordinating stepper phase timing, encoder input capture, and thermal shutdown logic. Use Value: Timer RC's input capture captures encoder edges with 16-bit resolution; 25 GPIO pins drive motor drivers and read limit switches. |
| Industrial Sensor Interface | Consumer Audio System Management |
Use Scenario: Multi-sensor environmental monitor (temperature, humidity, CO₂) with local display and RS-485 gateway connectivity. IC Role / Device Role / Timing Role: Sensor hub aggregating analog and digital inputs, performing calibration math, and formatting Modbus RTU frames. Use Value: 10-bit A/D provides sufficient resolution for calibrated sensors; UART1 supports isolated RS-485 transceivers with automatic direction control. |
Use Scenario: Volume, tone, and source selection logic in compact stereo receivers with IR remote decoding and LED status indicators. IC Role / Device Role / Timing Role: User interface processor handling key scan, IR demodulation, LED PWM dimming, and audio codec configuration. Use Value: 8 LED drive ports (N/D version) directly sink current for multiplexed displays; KI0–KI3 support matrix keypad with hardware debounce. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21264SNFP | 16 KB flash ROM, 1 KB RAM - double program storage and data buffer capacity | Better suited for firmware with larger feature sets or bootloader + application partitioning | Select when code size exceeds 8 KB or additional RAM is needed for communication buffers or real-time OS stacks |
| R5F21272SNFP | R8C/27 Group variant with 1 KB × 2 data flash blocks (10,000 erase cycles) - no program ROM endurance upgrade | Enables field-updatable configuration tables or calibration data storage without wearing main flash | Choose when persistent parameter storage with high rewrite endurance is required, e.g., for adaptive motor tuning or user preference retention |
Compared with R5F21262SNFP#10, R5F21264SNFP offers scalable memory for growing firmware complexity, while R5F21272SNFP adds dedicated data flash for robust non-volatile parameter management - both retain identical pinout, peripherals, and N-version temperature rating.
Availability
R5F21262SNFP#10 is available at Aetrix Electronics and suitable for home appliance control, office equipment motor drive, and industrial sensor interface applications requiring stable component supply over extended production lifecycles.
Supply support for R5F21262SNFP#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 industrial, automotive, and consumer markets.
The R8C/26 Group, including R5F21262SNFP#10, was designed for cost-sensitive, resource-constrained embedded control in appliances and office equipment - emphasizing low power, integrated peripherals, and ease of firmware development.
FAQ
What is the maximum operating frequency and voltage range for R5F21262SNFP#10?
R5F21262SNFP#10 operates at up to 20 MHz with a supply voltage range of 2.2 V to 5.5 V. At 20 MHz, the minimum instruction execution time is 50 ns under VCC = 3.0–5.5 V conditions. The device supports lower frequencies (16/10/5 MHz) with correspondingly relaxed voltage requirements down to 2.2 V, enabling flexible power/performance trade-offs in battery-powered or low-voltage designs.
Does R5F21262SNFP#10 include an integrated real-time clock (RTC)?
R5F21262SNFP#10 supports RTC functionality via Timer RE when used with the XCIN/XCOUT 32 kHz crystal oscillator - but only in N and D versions. The R5F21262SNFP#10 is an N-version part, so it includes the XCIN/XCOUT pins and associated circuitry. The RTC requires external 32 kHz crystal connection and software initialization of Timer RE's real-time clock mode.
How many analog input channels does R5F21262SNFP#10 support, and what is their resolution?
R5F21262SNFP#10 integrates a single 10-bit A/D converter with 12 analog input channels (AN0–AN11). These channels are multiplexed across GPIO pins P0_0–P0_7, P1_0–P1_3, and P1_5, requiring software configuration to switch between digital I/O and analog input modes. Conversion time is programmable and compatible with sampling rates up to several hundred ksps depending on clock source and resolution settings.
Is R5F21262SNFP#10 pin-compatible with other R8C/26 Group MCUs?
Yes, R5F21262SNFP#10 shares the identical 32-pin LQFP (PLQP0032GB-A) package and pin assignment with all other R8C/26 Group variants, including R5F21264SNFP and R5F21266SNFP. Pin functions, peripheral mappings, and electrical characteristics are fully consistent across the group - enabling drop-in memory upgrades without PCB redesign.
What debug and programming interfaces are supported by R5F21262SNFP#10?
R5F21262SNFP#10 supports on-chip debugging via the single-wire background debug mode (BDM) interface using the RESET pin. Programming is performed through the same interface using Renesas' standard flash programming tools (e.g., E8 emulator, Flash Development Toolkit). No JTAG or SWD interface is provided - BDM is the sole standardized debug and programming access method for this device.
R5F21262SNFP#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:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
R5F21262SNFP#10 FAQ
1.How can I place an order for R5F21262SNFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21262SNFP#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 R5F21262SNFP#10 reliable?
The price and inventory of R5F21262SNFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21262SNFP#10 is usually 5 days.
3.What payment methods are accepted for R5F21262SNFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21262SNFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21262SNFP#10?
R5F21262SNFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21262SNFP#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 R5F21262SNFP#10?
For technical support, including R5F21262SNFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21262SNFP#10 requirements.
6.How does Aetrix verify that R5F21262SNFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F21262SNFP#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 R5F21262SNFP#10 meets industry standards.
7.What is the process for return or replacement of R5F21262SNFP#10?
All R5F21262SNFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21262SNFP#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 R5F21262SNFP#10 part is unused and in its original packaging.
Return procedure for R5F21262SNFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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