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Renesas R5F21264SNFP#X6
- Part No.:
- R5F21264SNFP#X6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21264SNFP#X6.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21264SNFP#X6 from Renesas Electronics is a 16-bit R8C/26 Group single-chip microcontroller with 16 KB flash ROM, 1 KB RAM, 10-bit 12-channel ADC, dual UART, I²C interface, hardware LIN module, and real-time clock capability via Timer RE - deployed in consumer appliance control, office equipment HMI, and industrial sensor nodes requiring compact embedded processing.
For engineers reviewing the R5F21264SNFP#X6 datasheet, R5F21264SNFP#X6 pinout, R5F21264SNFP#X6 application, or R5F21264SNFP#X6 equivalent, this page delivers verified electrical specs, validated 32-pin LQFP package mapping, confirmed peripheral register-level functions (UART0/UART1, Timer RA–RE, SCL/SDA), and two field-tested alternative MCUs for design continuity.
Technical Context
The R5F21264SNFP#X6 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 independent clock generation circuits: XIN-based crystal oscillator, high-speed/low-speed on-chip oscillators (with frequency adjustment), and XCIN/XCOUT 32 kHz RTC oscillator (N/D version only).
Peripheral subsystems include Timer RA/RB (8-bit ×2 with 8-bit prescaler), Timer RC (16-bit input capture/output compare), Timer RE (real-time clock + compare match), dual UARTs supporting LIN physical layer via UART0+Timer RA, and an I²C bus interface compliant with Philips I²C specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions; enables efficient code density for cost-sensitive embedded firmware. |
| Memory | 16 KB flash ROM + 1 KB RAM; sufficient for standalone motor control or sensor fusion algorithms without external memory. |
| ADC | 10-bit resolution, 12 input channels; supports simultaneous sampling of temperature, voltage, and current in power management systems. |
| Timers | Timer RA/RB (8-bit ×2), Timer RC (16-bit), Timer RE (RTC); enables PWM generation, pulse-width measurement, and calendar-based wake-up from stop mode. |
| Serial Interfaces | 2× UART (UART0/UART1), 1× I²C, 1× clock-synchronous serial I/O with chip select; permits multi-protocol communication with displays, sensors, and host controllers. |
| Supply Range | 2.2–5.5 V (N version); supports direct battery operation (e.g., 3× AA) and compatibility with 3.3 V/5 V system rails. |
| Power Modes | Wait mode: 2.0 µA @ 3.0 V / 32 kHz; Stop mode: 0.7 µA @ 3.0 V; critical for battery-powered remote controls and IoT endpoints. |
Pinout & Package
Package: 32-pin molded-plastic LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC/AVCC | Power supply input / Analog reference | Separate analog/digital supply pins enable noise isolation for ADC accuracy; AVCC requires local decoupling to AVSS. |
| P0_0–P0_7 | General-purpose I/O / ADC inputs AN0–AN7 | 8-bit port with configurable direction per pin; all pins double as analog inputs for mixed-signal signal conditioning. |
| TXD0/RXD0 | UART0 transmit/receive | Dedicated full-duplex UART channel for debug console or host MCU communication without software bit-banging. |
| SCL/SDA | I²C bus clock/data | Open-drain I/O with internal pull-up option; supports standard-mode (100 kbps) I²C slave/master operation with ACK/NACK handling. |
| TREO | Timer RE output | Drives RTC alarm or periodic interrupt signal; synchronized to 32 kHz XCIN clock for low-power timekeeping. |
| RESET | Active-low reset input | Hardware reset assertion halts CPU, clears registers, and forces boot from vector table at 0FFDCh; requires external pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0 physical layer via UART0 + Timer RA; eliminates external transceiver for automotive body electronics nodes. |
| On-Chip Oscillators | High-speed (adjustable) and low-speed on-chip oscillators reduce BOM count; eliminates need for external crystals in non-RTC applications. |
| Real-Time Clock (RTC) | Timer RE driven by 32 kHz XCIN crystal (N/D version); provides calendar/time-of-day functionality with <1 ppm drift at 25°C. |
| LED Drive Capability | P1_0–P1_7 support direct LED sink/source drive (N/D version); enables multiplexed display control without external drivers. |
| Interrupt Architecture | 7 priority levels, 15 internal + 4 external + 4 software sources; supports deterministic response to safety-critical events like overcurrent detection. |
Applications
| Home Appliance Control | Office Equipment HMI |
|---|---|
Use Scenario: Embedded controller in microwave oven or washing machine main PCB managing user interface, motor sequencing, and thermal monitoring. IC Role / Device Role / Timing Role: Primary system MCU executing real-time motor control loops, reading front-panel key inputs (KI0–KI3), and driving 7-segment LED displays via P1_0–P1_7. Use Value: Integrated 10-bit ADC measures thermistor voltage for precise temperature regulation; UART0 enables factory calibration via PC connection. |
Use Scenario: Standalone controller in multifunction printer panel handling button presses, LCD backlight dimming, and status LED sequencing. IC Role / Device Role / Timing Role: Dedicated HMI processor interfacing with capacitive touch keys, driving segmented LCD via SSO/SSCK, and communicating with main SoC via I²C. Use Value: Hardware LIN module supports legacy printer accessory bus; low-power stop mode extends battery life in cordless handheld remotes. |
| Industrial Sensor Node | Automotive Body Control |
Use Scenario: Wireless environmental sensor node measuring temperature, humidity, and ambient light in factory HVAC zones. IC Role / Device Role / Timing Role: Data acquisition MCU sampling AN0–AN11, timestamping readings using Timer RE RTC, and formatting packets for RF transmission via UART1. Use Value: 0.7 µA stop-mode current enables >5-year battery life on CR2032; integrated voltage detector ensures reliable brown-out reset during power dips. |
Use Scenario: Door module controller in passenger vehicle managing window lift, mirror fold, and interior lighting sequences. IC Role / Device Role / Timing Role: LIN slave node receiving commands from body control unit (BCU) via UART0, executing PWM motor control via Timer RC outputs, and reporting switch status via INT0/INT1. Use Value: Hardware LIN compliance eliminates protocol stack overhead; -40 to +85°C operating range (D version) meets automotive ambient requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21264SDFP | D version: -40 to +85°C operating range; identical ROM/RAM/peripherals; adds XCIN/XCOUT RTC support. | Required for automotive cabin modules or outdoor industrial enclosures where extended temperature tolerance is mandatory. | Select R5F21264SDFP when ambient operating temperature exceeds 85°C or RTC functionality is needed. |
| R5F21274SNFP | R8C/27 Group: adds 2×1 KB data flash blocks (10,000 erase cycles); same package, pinout, and core peripherals. | Enables field firmware updates and parameter storage without external EEPROM; not available in R5F21264SNFP#X6. | Choose R5F21274SNFP if non-volatile parameter retention or bootloader update capability is required. |
Compared with R5F21264SNFP#X6, R5F21264SDFP extends temperature range and RTC capability for harsh environments, while R5F21274SNFP adds data flash for robust firmware update architecture - both retain identical pinout and software compatibility.
Availability
R5F21264SNFP#X6 is available at Aetrix Electronics and suitable for home appliance control, office equipment HMI, and industrial sensor node designs requiring stable component supply across long production lifecycles.
Supply support for R5F21264SNFP#X6 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, and power solutions for industrial, automotive, and consumer markets.
The R8C/26 Group, including R5F21264SNFP#X6, was designed for cost-optimized, low-power embedded control in appliances, office automation, and industrial equipment - emphasizing integration, code efficiency, and qualification for Standard-grade applications.
FAQ
What is the maximum operating frequency and supply voltage range for R5F21264SNFP#X6?
R5F21264SNFP#X6 operates at up to 20 MHz with a supply voltage range of 2.2 V to 5.5 V (N version). Minimum instruction execution time is 50 ns under these conditions. The device supports lower frequencies (10 MHz, 5 MHz) at reduced supply voltages down to 2.2 V, enabling flexible power/performance trade-offs in battery-powered designs.
Does R5F21264SNFP#X6 include hardware LIN support?
Yes, R5F21264SNFP#X6 integrates a hardware LIN module using UART0 and Timer RA to implement the LIN 2.0 physical layer. This allows direct connection to LIN bus networks without external transceivers, reducing component count and board space in automotive body electronics and industrial control nodes.
What are the ADC capabilities of R5F21264SNFP#X6?
R5F21264SNFP#X6 features a single 10-bit successive-approximation ADC with 12 analog input channels (AN0–AN11). It supports programmable sample-and-hold timing and conversion triggers from timers or software, making it suitable for precision measurements of temperature, voltage, and current in closed-loop control systems.
Is RTC functionality available on R5F21264SNFP#X6?
R5F21264SNFP#X6 supports real-time clock functionality via Timer RE when used with an external 32 kHz crystal connected to XCIN/XCOUT pins - but only in N and D versions. The R5F21264SNFP#X6 is an N version part, so RTC operation is fully supported with proper crystal loading and configuration of the timer's clock source.
What package type and pin count does R5F21264SNFP#X6 use?
R5F21264SNFP#X6 uses a 32-pin molded-plastic LQFP package (PLQP0032GB-A), measuring 7 mm × 7 mm with 0.8 mm pitch. This RoHS-compliant package provides full access to 25 GPIO pins, 12 ADC inputs, dual UART, I²C, and dedicated timer/RTC signals - optimized for compact, high-density PCB layouts.
R5F21264SNFP#X6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/26
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K 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:
R5F21264SNFP#X6 FAQ
1.How can I place an order for R5F21264SNFP#X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21264SNFP#X6 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 R5F21264SNFP#X6 reliable?
The price and inventory of R5F21264SNFP#X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21264SNFP#X6 is usually 5 days.
3.What payment methods are accepted for R5F21264SNFP#X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21264SNFP#X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21264SNFP#X6?
R5F21264SNFP#X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21264SNFP#X6 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 R5F21264SNFP#X6?
For technical support, including R5F21264SNFP#X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21264SNFP#X6 requirements.
6.How does Aetrix verify that R5F21264SNFP#X6 is sourced from the original manufacturer or authorized distributors?
All R5F21264SNFP#X6 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 R5F21264SNFP#X6 meets industry standards.
7.What is the process for return or replacement of R5F21264SNFP#X6?
All R5F21264SNFP#X6 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21264SNFP#X6, 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 R5F21264SNFP#X6 part is unused and in its original packaging.
Return procedure for R5F21264SNFP#X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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