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Renesas R5F21247SNFP#X6
- Part No.:
- R5F21247SNFP#X6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21247SNFP#X6.pdf
- Description:
- R8C24 48K 52QFP -20 TO +85C
- Quantity:
- Payment:
- Shipping:
Inventory:3,713
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Product details
Overview
R5F21247SNFP#X6 from Renesas Electronics is a 16-bit single-chip microcontroller in the R8C/24 Group, featuring 48 KB flash program memory, 2.5 KB RAM, and operation at up to 20 MHz (50 ns min instruction time). It integrates UART0/UART1, I²C bus interface, LIN module, 12-channel 10-bit A/D converter, and multiple timers including real-time clock (Timer RE), targeting embedded control in consumer appliances and office equipment.
For engineers reviewing the R5F21247SNFP#X6 datasheet, R5F21247SNFP#X6 pinout, R5F21247SNFP#X6 application, or R5F21247SNFP#X6 equivalent, key selection considerations include its 52-pin LQFP (PLQP0052JA-A) package, -20°C to +85°C operating range (N version), on-chip high-speed oscillator with frequency adjustment, and hardware LIN support tied to Timer RA and UART0.
Technical Context
The R5F21247SNFP#X6 implements the R8C/Tiny Series CPU core with 89 fundamental instructions and a 1 Mbyte address space. Its peripheral set includes two UART channels, one I²C interface, one hardware LIN channel, and a 12-channel 10-bit A/D converter with internal reference voltage input (VREF).
It features three independent clock generation circuits: XIN-based (up to 20 MHz), high-speed on-chip oscillator (adjustable), and XCIN-based 32 kHz real-time clock source. Power management includes wait mode (2.0 µA typical at 3.0 V, f(XCIN)=32 kHz) and stop mode (0.7 µA typical at 3.0 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit, 89 instructions, 1 Mbyte address space |
| Flash Memory | 48 KB program ROM; no data flash (R8C/24 Group) |
| RAM | 2.5 KB on-chip SRAM for variables and stack |
| Max Clock Frequency | 20 MHz (50 ns min instruction time at VCC = 3.0–5.5 V) |
| A/D Converter | 10-bit resolution, 12 input channels (AN0–AN11), VREF-referenced |
| Operating Temperature | -20°C to +85°C (N version, industrial grade) |
| Supply Voltage | 2.2 V to 5.5 V; supports low-voltage operation down to 2.2 V at 5 MHz |
Pinout & Package
Package: 52-pin molded-plastic LQFP (PLQP0052JA-A), 0.65 mm pitch, 10 mm × 10 mm body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC | Power supply input | Main and analog power pins; require decoupling capacitors per layout guidelines |
| VSS / AVSS | Ground reference | Digital and analog ground; separate routing recommended for noise-sensitive A/D operation |
| XIN / XOUT | External crystal/resonator interface | Supports up to 20 MHz crystal; XOUT is output-only; external clock may be applied to XIN only |
| XCIN / XCOUT | 32 kHz real-time clock source | Connects to 32.768 kHz crystal for Timer RE and low-power RTC functions |
| RESET | Active-low reset input | Asynchronous reset; must be held low ≥100 ns for valid reset assertion |
| MODE | Boot mode select | Must be pulled high via resistor to enable normal flash execution mode |
| P0_0–P0_7 | Analog input / general I/O | 12-bit A/D inputs AN0–AN7; configurable as CMOS digital I/O with software-selectable pull-up |
| AN8–AN11 | Analog input | Additional A/D channels mapped to P1_0–P1_3; share pins with key interrupt inputs (KI0–KI3) |
| UART0 (RXD0/TXD0) | Asynchronous serial interface | Full-duplex UART channel; RXD0 also serves as TRAIO (Timer RA I/O) when configured |
| I²C (SDA/SCL) | Two-wire serial interface | Open-drain I/O; requires external pull-up resistors; supports standard-mode (100 kbps) communication |
| LIN (TXD0/RXD0/TRAIO) | Hardware LIN physical layer | Uses UART0 and Timer RA for automatic LIN header detection, checksum, and sync field generation |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Single-channel LIN 2.0/2.1 compliant interface using UART0 and Timer RA, eliminating need for external transceiver in basic implementations |
| Adjustable High-Speed On-Chip Oscillator | Internal RC oscillator with software-tunable frequency (±1% accuracy after calibration), enabling clock source redundancy without external crystal |
| Real-Time Clock (Timer RE) | Dedicated 32.768 kHz-based timer with compare match and alarm interrupt, supporting low-power timekeeping in wait/stop modes |
| 12-Channel 10-Bit A/D Converter | Simultaneous sampling not supported; conversion time ≤10 µs per channel; VREF pin allows precise external reference for measurement stability |
| Multiple Low-Power Modes | Wait mode (2.0 µA) and stop mode (0.7 µA) with selective peripheral wake-up sources including INT0–INT3 and key inputs KI0–KI3 |
Applications
| Home Appliance Control | Office Equipment Interface |
|---|---|
Use Scenario: Microcontroller in washing machine main board managing motor control, water level sensing, and user interface. IC Role / Device Role / Timing Role: Central system controller executing real-time motor sequencing, reading 12-channel A/D for pressure/temperature sensors, and driving LED indicators via P2_0–P2_7. Use Value: Integrated LIN module enables direct communication with door lock or detergent dispenser modules; on-chip RTC maintains cycle timing across power cycles. | Use Scenario: Embedded controller in multifunction printer handling paper feed, toner monitoring, and USB host interface coordination. IC Role / Device Role / Timing Role: Peripheral manager interfacing with stepper drivers, optical sensors (via AN0–AN11), and host PC via UART0 bridged to USB. Use Value: Hardware UART0 and UART1 allow concurrent host communication and internal module telemetry; adjustable on-chip oscillator reduces BOM cost by eliminating external 20 MHz crystal. |
| Audio System Remote Interface | Industrial Sensor Node |
Use Scenario: IR remote receiver and command decoder in home theater amplifier with volume/display control. IC Role / Device Role / Timing Role: Key interrupt processor (KI0–KI3) decoding NEC/RC-5 protocols, updating display via P0_0–P0_7, and sending commands over I²C to audio DSP. Use Value: Dedicated key input pins with debouncing support reduce firmware overhead; I²C interface ensures reliable, noise-immune communication with audio subsystem. | Use Scenario: Standalone environmental sensor node measuring temperature, humidity, and air quality in factory HVAC ducts. IC Role / Device Role / Timing Role: Data acquisition engine sampling analog sensors (AN0–AN11), logging timestamps via Timer RE, and transmitting via UART1 to gateway. Use Value: 2.2 V minimum supply enables operation from aging battery packs; stop mode current of 0.7 µA extends battery life to multi-year intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21248SNFP | 64 KB flash, 3 KB RAM; identical peripherals and pinout | Higher code capacity for complex firmware with integrated communication stacks | Select when future firmware expansion or bootloader implementation requires >48 KB program space |
| R5F21257SNFP | R8C/25 Group; adds 2 KB data flash (1 KB × 2 blocks) for EEPROM-like nonvolatile storage | Enables field-upgradable configuration storage and wear-leveling log buffers | Choose when persistent parameter retention across resets is required without external EEPROM |
Compared with R5F21247SNFP#X6, R5F21248SNFP offers greater program memory headroom while maintaining full pin and peripheral compatibility, whereas R5F21257SNFP introduces data flash for robust parameter storage-neither is pin-compatible with R5F21247SNFP#X6 due to different Group-level feature sets and memory architecture.
Availability
R5F21247SNFP#X6 is available at Aetrix Electronics and suitable for home appliance control, office equipment interface, and industrial sensor node applications requiring stable component supply and long-term industrial-grade availability.
Supply support for R5F21247SNFP#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, power, and SoC solutions for automotive, industrial, and consumer markets.
The R8C/24 Group, including R5F21247SNFP#X6, was designed for cost-sensitive, low-to-mid complexity embedded control applications where integration of LIN, A/D, and UART interfaces reduces system component count.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for R5F21247SNFP#X6?
R5F21247SNFP#X6 operates at up to 20 MHz with a supply voltage of 3.0 V to 5.5 V. At 10 MHz, it supports 2.7 V to 5.5 V; at 5 MHz, the range extends down to 2.2 V. These specifications are defined in the R8C/24 Group datasheet Rev.3.00 and verified across production lots.
Does R5F21247SNFP#X6 include on-chip data flash memory?
No, R5F21247SNFP#X6 belongs to the R8C/24 Group and contains only program flash memory (48 KB). Data flash (1 KB × 2 blocks) is exclusive to the R8C/25 Group, such as R5F21257SNFP. This distinction is explicitly stated in Tables 1.3 and 1.4 of the official documentation.
Which package type and pin count does R5F21247SNFP#X6 use?
R5F21247SNFP#X6 uses the PLQP0052JA-A package: a 52-pin LQFP with 0.65 mm pitch and 10 mm × 10 mm body. Pin assignments and mechanical dimensions are fully documented in Figure 1.4 and Table 1.5 of the R8C/24 Group datasheet.
Can R5F21247SNFP#X6 operate in low-power modes, and what are the typical current draws?
Yes, R5F21247SNFP#X6 supports wait mode (2.0 µA typical at 3.0 V, f(XCIN)=32 kHz) and stop mode (0.7 µA typical at 3.0 V). These values are measured under specified conditions in the Electrical Characteristics section and enable multi-year battery operation in sensor nodes.
Is the LIN functionality in R5F21247SNFP#X6 implemented in hardware or software?
R5F21247SNFP#X6 includes a hardware LIN module compliant with LIN 2.0/2.1, using UART0 and Timer RA to generate sync fields, headers, and checksums without CPU intervention. This is confirmed in Section 1.2 Peripheral Functions and Figure 1.1 Block Diagram of the official datasheet.
R5F21247SNFP#X6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/2x/24
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- 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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2.5K 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:
R5F21247SNFP#X6 FAQ
1.How can I place an order for R5F21247SNFP#X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21247SNFP#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 R5F21247SNFP#X6 reliable?
The price and inventory of R5F21247SNFP#X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21247SNFP#X6 is usually 5 days.
3.What payment methods are accepted for R5F21247SNFP#X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21247SNFP#X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21247SNFP#X6?
R5F21247SNFP#X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21247SNFP#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 R5F21247SNFP#X6?
For technical support, including R5F21247SNFP#X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21247SNFP#X6 requirements.
6.How does Aetrix verify that R5F21247SNFP#X6 is sourced from the original manufacturer or authorized distributors?
All R5F21247SNFP#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 R5F21247SNFP#X6 meets industry standards.
7.What is the process for return or replacement of R5F21247SNFP#X6?
All R5F21247SNFP#X6 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21247SNFP#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 R5F21247SNFP#X6 part is unused and in its original packaging.
Return procedure for R5F21247SNFP#X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21247SNFP#X6 Tags
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