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Renesas R5F21348UDFP#X0
- Part No.:
- R5F21348UDFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21348UDFP#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:181
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Product details
Overview
R5F21348UDFP#X0 from Renesas is a 16-bit R8C CPU core microcontroller with 64 KB program ROM, 8 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It operates at up to 20 MHz (50 ns min instruction time), integrates USB 2.0 full-speed device controller + transceiver, and targets embedded control in USB-peripheral consumer electronics such as cameras and household appliances.
For engineers reviewing the R5F21348UDFP#X0 datasheet, R5F21348UDFP#X0 pinout, R5F21348UDFP#X0 application, or R5F21348UDFP#X0 equivalent, key selection criteria include its 48-pin LQFP package, −40°C to +85°C industrial temperature grade, integrated USB function controller with 448-byte FIFO, 10-bit 12-channel ADC, and LIN hardware module using UART0 and Timer RA.
Technical Context
The R5F21348UDFP#X0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash at 03000h–03FFFh.
USB functionality is limited to peripheral mode only (not host or OTG), with five configurable pipes (DCP + PIPE4–7), 64-byte DCP FIFO, and double-buffered 64-byte FIFOs for PIPE4/5. The device includes dedicated USB I/O pins (USB_DP/DM/VBUS/DPUPE) and supports VBUS detection but lacks USB_ID, USB_OVRCURB, or USB_EXICEN signals - confirming non-OTG, device-only operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC support |
| Memory | 64 KB program ROM + 8 KB RAM + 4 KB data flash (1 KB × 4 blocks, BGO-capable) |
| USB Interface | USB 2.0 full-speed (12 Mbps) device controller + transceiver; no host/OTG capability |
| ADC | 10-bit resolution, 12 input channels, sample-and-hold, sweep mode |
| Operating Temp | −40°C to +85°C (D version), validated for industrial ambient conditions |
| Supply Voltage | 1.8 V to 5.5 V; supports low-power wait mode (4.0 µA) and stop mode (2.0 µA) at 3.0 V |
| Package | 48-pin LQFP (PLQP0048KB-A / 48P6Q-A), RoHS-compliant |
Pinout & Package
Package: 48-pin LQFP (PLQP0048KB-A, footprint code 48P6Q-A), 7 mm × 7 mm, 0.5 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_DP / USB_DM | USB differential data I/O | Direct connection to USB bus D+/D−; internal transceiver eliminates external PHY |
| USB_VBUS | VBUS monitor input | Detects USB cable insertion; enables runtime VBUS presence sensing |
| USB_DPUPE | D+ pull-up enable output | Controls internal 1.5 kΩ pull-up on D+ for USB device enumeration |
| P0_0–P0_7, P1_0–P1_7, etc. | CMOS I/O ports | 36 programmable I/O pins with selectable pull-up resistors; high-current drive capability |
| XIN / XOUT | Crystal oscillator interface | Supports external crystal (1–20 MHz) or ceramic resonator; enables precise timing for USB and system clocks |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent program execution while erasing/writing data flash - critical for firmware updates without halting real-time control |
| Hardware LIN Module | Integrated LIN 2.0 support via UART0 + Timer RA; eliminates external LIN transceiver in automotive body electronics |
| Low-Power Modes | Wait mode (4.0 µA) and stop mode (2.0 µA) at 3.0 V - extends battery life in portable USB peripherals |
| Multi-Source Interrupts | 69 interrupt vectors with 7 priority levels and 9 external sources (INT0–INT4, KI0–KI3) - supports responsive event-driven firmware |
| On-Chip Debug | Fully supported via single-wire debug interface; enables flash rewrite and real-time trace without external emulator |
Applications
| USB-Enabled Camera Module | Smart Home Appliance Controller |
|---|---|
Use Scenario: Compact digital camera with USB mass storage class connectivity for photo transfer. IC Role / Device Role / Timing Role: Main MCU handling image sensor interface, JPEG compression, USB device stack, and power management. Use Value: Integrated USB transceiver and 448-byte FIFO reduce BOM count; BGO allows background firmware patching during active USB sessions. |
Use Scenario: Washing machine control board requiring motor control, user interface, and USB diagnostics port. IC Role / Device Role / Timing Role: System controller managing PWM motor drivers, keypad scan, display backlight, and USB service interface. Use Value: −40°C to +85°C rating ensures reliability in hot cabinet environments; LIN module supports optional door lock or detergent dispenser communication. |
| Industrial USB Data Logger | USB Audio Accessory |
Use Scenario: Ruggedized environmental sensor node logging temperature/humidity to USB flash drive. IC Role / Device Role / Timing Role: Sensor aggregator, SD card interface (via SPI), USB MSC device, and low-power scheduler. Use Value: 10-bit 12-channel ADC with sample-and-hold captures multi-sensor analog inputs simultaneously; wait-mode current <4.0 µA extends field deployment duration. |
Use Scenario: USB-powered headset with mic input, volume control, and LED status indicators. IC Role / Device Role / Timing Role: USB audio class (UAC) device controller, ADC for mic bias, GPIO for buttons/LEDs. Use Value: Dedicated USB peripheral controller handles isochronous audio transfers without CPU overhead; internal voltage detector ensures stable USB enumeration under varying supply conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21348UNFP | Same core, memory, and peripherals; rated for −20°C to +85°C (N version) | Not qualified for extended industrial temperature range | Select R5F21348UNFP only for commercial indoor applications where ambient stays above −20°C |
| R5F21348KNFP | R8C/34K Group; adds USB OTG, USB_ID pin, USB_OVRCURB, and EXICEN; same 64 KB ROM/8 KB RAM | Supports dual-role USB (host/peripheral) and external OTG power control | Choose R5F21348KNFP when USB host capability or micro-AB connector support is required |
Compared with R5F21348UDFP#X0, R5F21348UNFP trades industrial temperature tolerance for lower cost in benign environments, while R5F21348KNFP expands USB role flexibility at the expense of higher complexity and no direct pin compatibility due to added OTG-specific pins.
Availability
R5F21348UDFP#X0 is available at Aetrix Electronics and suitable for USB peripheral design, industrial control systems, and consumer appliance development requiring stable component supply across long production lifecycles.
Supply support for R5F21348UDFP#X0 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R8C/34U Group, including R5F21348UDFP#X0, was designed for cost-sensitive, USB-integrated embedded control in consumer and industrial equipment - prioritizing integration, low power, and ease of certification.
FAQ
What USB modes does the R5F21348UDFP#X0 support?
The R5F21348UDFP#X0 supports USB 2.0 full-speed (12 Mbps) device mode only. It includes an integrated USB transceiver and function controller but lacks USB_OTG, host, or dual-role capability. Pins like USB_ID, USB_OVRCURB, and USB_EXICEN are absent - confirming exclusive peripheral operation per the R8C/34U Group specification.
Does the R5F21348UDFP#X0 include a hardware LIN interface?
Yes, the R5F21348UDFP#X0 integrates a hardware LIN module compliant with LIN 2.0, implemented using UART0 and Timer RA. This enables direct LIN bus communication without external transceivers - ideal for automotive body control modules or smart appliance sub-systems requiring standardized serial communication.
What is the data flash endurance and programming voltage for R5F21348UDFP#X0?
The R5F21348UDFP#X0 provides 4 KB of data flash (1 KB × 4 blocks) with 10,000 erase/write cycles endurance. Programming and erasure operate at the same supply voltage used for normal operation: VCC = 2.7 V to 5.5 V. Background operation (BGO) allows code execution during flash writes.
Is the R5F21348UDFP#X0 pin-compatible with R8C/34K Group MCUs like R5F21348KNFP?
No, the R5F21348UDFP#X0 is not pin-compatible with R8C/34K Group devices. Although both use the 48-pin LQFP package, R5F21348KNFP adds OTG-specific pins (USB_ID, USB_OVRCURB, USB_EXICEN, USB_DPRPD) that replace standard I/O functions on pins 23–25 and 27. Physical pin mapping differs, requiring PCB redesign.
What debug interfaces are supported by R5F21348UDFP#X0?
The R5F21348UDFP#X0 supports on-chip debugging via Renesas' single-wire debug (SWD) interface. This enables full flash programming, real-time variable monitoring, breakpoint setting, and background flash rewrite - all without requiring external JTAG emulators or additional debug headers.
R5F21348UDFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34U
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART, USB
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 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:
R5F21348UDFP#X0 FAQ
1.How can I place an order for R5F21348UDFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21348UDFP#X0 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 R5F21348UDFP#X0 reliable?
The price and inventory of R5F21348UDFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21348UDFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F21348UDFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21348UDFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21348UDFP#X0?
R5F21348UDFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21348UDFP#X0 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 R5F21348UDFP#X0?
For technical support, including R5F21348UDFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21348UDFP#X0 requirements.
6.How does Aetrix verify that R5F21348UDFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F21348UDFP#X0 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 R5F21348UDFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F21348UDFP#X0?
All R5F21348UDFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21348UDFP#X0, 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 R5F21348UDFP#X0 part is unused and in its original packaging.
Return procedure for R5F21348UDFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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