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Renesas R5F21248SDFP#V2
- Part No.:
- R5F21248SDFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21248SDFP#V2.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,742
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Product details
Overview
R5F21248SDFP#V2 from Renesas Electronics is a 16-bit single-chip microcontroller in the R8C/24 Group, featuring 64 KB flash program memory, 3 KB RAM, and operation across -40°C to +85°C (D version). It integrates an R8C/Tiny CPU core, 10-bit 12-channel ADC, dual UARTs, LIN hardware module, I²C interface, and multiple timers including RTC-capable Timer RE - deployed in consumer appliance control and industrial sensor nodes.
For engineers reviewing the R5F21248SDFP#V2 datasheet, R5F21248SDFP#V2 pinout, R5F21248SDFP#V2 application, or R5F21248SDFP#V2 equivalent, key selection criteria include its 52-pin LQFP (PLQP0052JA-A) package, 20 MHz max clock at 3.0–5.5 V supply, 0.7 µA stop-mode current, and D-version temperature rating for extended industrial environments.
Technical Context
The R5F21248SDFP#V2 implements the R8C/Tiny Series CPU core with 89 fundamental instructions and executes at 50 ns minimum instruction time (20 MHz, VCC = 3.0–5.5 V). Its memory architecture includes on-chip flash with 100-cycle endurance and supports single-chip operation without external ROM or RAM.
Peripheral integration includes Timer RD (16-bit × 2 channels with input capture/output compare), hardware LIN over UART0 and Timer RA, and dual-clock domain support via XIN (up to 20 MHz) and XCIN (32 kHz) oscillators - enabling precise real-time control and low-power wake-up capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit, 89 instructions, 20 MHz max operation |
| Memory | 64 KB flash program memory, 3 KB RAM, no data flash (R8C/24 Group) |
| ADC | 10-bit resolution, 12 input channels, internal reference support via VREF pin |
| Timers | Timer RA/RB (8-bit × 2), Timer RD (16-bit × 2 with I/O 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 (1 channel) |
| Supply & Power | VCC = 2.2–5.5 V; 0.7 µA stop mode (3.0 V, f(XCIN) = 32 kHz); 10 mA active (5.0 V, 20 MHz) |
| Operating Temperature | -40°C to +85°C (D version); qualified for industrial applications per Renesas "Standard" grade |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pin pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / I/O port | 12-channel ADC inputs (AN0–AN7); general-purpose CMOS I/O with programmable direction and pull-up |
| P1_0–P1_7 | I/O port / peripheral multiplex | Supports KI0–KI3 (key interrupt), RXD0/TXD0 (UART0), CLK0, TRAIO (Timer RA) |
| P2_0–P2_7 | LED drive / timer I/O | LED sink/source capable; TRDIOA0–TRDIOD1 (Timer RD I/O), TRDCLK (external timer clock) |
| P3_0–P3_7 | I/O port / serial interface | TRAO/TRBO (Timer RA/RB outputs), SDA/SCL (I²C), SSO/SSI/SSCK/SCS (clock sync serial with chip select) |
| P4_2–P4_7 | Analog reference / clock / reset | VREF (ADC reference), XCIN/XCOUT (32 kHz RTC crystal), XIN/XOUT (main oscillator), RESET, MODE |
| P6_0–P6_7 | I/O port / UART1 / interrupt | RXD1/TXD1 (UART1), INT0–INT3, CLK1, TREO (Timer RE output), LED drive |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Full LIN 2.0/2.1 compliance using UART0 and Timer RA - eliminates software bit-banging overhead in automotive body electronics |
| Low-Power Operation | 0.7 µA stop mode enables battery-powered sensor nodes with multi-year runtime on coin cells |
| Dual Clock Domains | Independent XIN (up to 20 MHz) and XCIN (32 kHz) circuits allow simultaneous high-speed processing and accurate RTC timing |
| Integrated Voltage Detection | On-chip voltage detection circuit provides brown-out reset and early warning before supply collapse |
| Real-Time Clock (RTC) | Timer RE delivers calendar/timekeeping with compare-match interrupt - no external RTC IC required |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Microcontroller in washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Central system controller executing real-time motor commutation logic, ADC sampling of pressure/temperature sensors, and LIN communication with display module. Use Value: Integrated LIN and 12-channel ADC reduce BOM count; 64 KB flash accommodates field-upgradable firmware with safety diagnostics. |
Use Scenario: Standalone environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Data acquisition engine performing periodic ADC conversions, RTC-scheduled wake-up, and UART transmission to gateway. Use Value: 0.7 µA stop mode extends battery life; built-in voltage detector prevents corrupted EEPROM writes during brown-out. |
| Office Equipment | Consumer Audio System |
|
Use Scenario: Embedded controller in multifunction printer handling paper feed, toner monitoring, and USB host interface. IC Role / Device Role / Timing Role: Peripheral coordinator managing stepper motor drivers, photointerrupter inputs, and USB-to-serial bridge via UART1. Use Value: 41 GPIO pins enable direct connection to diverse sensors/actuators; 3 KB RAM supports print job buffering and status logging. |
Use Scenario: Digital signal processor companion in Bluetooth speaker managing LED indicators, button inputs, and battery charging state. IC Role / Device Role / Timing Role: System manager reading analog battery voltage, decoding key presses (KI0–KI3), and driving 8 LED segments via P2 ports. Use Value: On-chip LED drive capability eliminates external driver ICs; I²C interface allows seamless integration with audio codec and charger IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21248SNFP | N version (-20°C to +85°C); identical memory, peripherals, and pinout | Suitable for commercial indoor equipment only; lacks extended low-temperature operation | Select when ambient operating range does not exceed -20°C and cost sensitivity outweighs industrial qualification needs. |
| R5F21258SDFP | R8C/25 Group variant with 1 KB × 2 data flash blocks; otherwise identical package, speed, and peripherals | Enables in-field parameter storage (e.g., calibration data, device ID) without external EEPROM | Choose when nonvolatile data logging or firmware update metadata storage is required alongside program execution. |
Compared with R5F21248SDFP#V2, R5F21248SNFP offers lower cost but reduced temperature margin, while R5F21258SDFP adds data flash at same footprint - making R5F21248SDFP#V2 optimal for fixed-parameter industrial control where reliability across -40°C startup is critical and data retention is handled externally.
Availability
R5F21248SDFP#V2 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, office equipment, and consumer audio systems requiring stable component supply and long-term industrial-grade availability.
Supply support for R5F21248SDFP#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/24 Group, including R5F21248SDFP#V2, was designed for cost-sensitive, low-power embedded control in consumer and industrial equipment - emphasizing integrated peripherals, wide supply range, and robust industrial temperature operation.
FAQ
What is the maximum operating frequency of the R5F21248SDFP#V2?
The R5F21248SDFP#V2 operates at up to 20 MHz when supplied at 3.0–5.5 V, achieving a minimum instruction execution time of 50 ns. This frequency is supported by the on-chip high-speed oscillator or external crystal/resonator connected to XIN/XOUT. The R5F21248SDFP#V2 maintains full functionality across its specified -40°C to +85°C temperature range at this speed.
Does the R5F21248SDFP#V2 include data flash memory?
No, the R5F21248SDFP#V2 belongs to the R8C/24 Group and contains only program flash memory (64 KB) and RAM (3 KB), with no dedicated data flash. Data flash is exclusive to the R8C/25 Group (e.g., R5F21258SDFP). The R5F21248SDFP#V2 relies on external nonvolatile storage or EEPROM emulation in program flash for parameter retention.
Which package type does the R5F21248SDFP#V2 use?
The R5F21248SDFP#V2 uses the 52-pin molded-plastic LQFP package designated PLQP0052JA-A: 10 mm × 10 mm body size, 0.65 mm pin pitch, and standard JEDEC-compliant footprint. This package is pin-compatible across all R8C/24 and R8C/25 Group variants in the FP suffix family.
What communication interfaces are integrated into the R5F21248SDFP#V2?
The R5F21248SDFP#V2 integrates UART0 and UART1 (2 channels), I²C bus interface, clock synchronous serial I/O with chip select (SSI/SSCK/SCS/SSO), and a hardware LIN module implemented using UART0 and Timer RA. It does not include SPI or CAN interfaces. These interfaces support sensor networking, display control, and automotive sub-system communication.
Is the R5F21248SDFP#V2 qualified for automotive applications?
The R5F21248SDFP#V2 is rated for -40°C to +85°C (D version) and classified by Renesas as "Standard" quality grade, intended for industrial and consumer applications - not automotive AEC-Q100 qualification. While it powers automotive-adjacent systems like aftermarket accessories, it is not approved for safety-critical vehicle subsystems. For automotive use, Renesas recommends RH850 or RL78/F1x families.
R5F21248SDFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/2x/24
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, Voltage Detect, WDT
- Number of I/O:
- 41
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21248SDFP#V2 FAQ
1.How can I place an order for R5F21248SDFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21248SDFP#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 R5F21248SDFP#V2 reliable?
The price and inventory of R5F21248SDFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21248SDFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21248SDFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21248SDFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21248SDFP#V2?
R5F21248SDFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21248SDFP#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 R5F21248SDFP#V2?
For technical support, including R5F21248SDFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21248SDFP#V2 requirements.
6.How does Aetrix verify that R5F21248SDFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21248SDFP#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 R5F21248SDFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21248SDFP#V2?
All R5F21248SDFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21248SDFP#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 R5F21248SDFP#V2 part is unused and in its original packaging.
Return procedure for R5F21248SDFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21248SDFP#V2 Tags
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