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Renesas R5F21348KNFP#V0
- Part No.:
- R5F21348KNFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21348KNFP#V0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,968
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Product details
Overview
R5F21348KNFP#V0 from Renesas is a 16-bit R8C CPU core MCU with 64 KB program ROM, 8 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It integrates USB 2.0 full-speed (12 Mbps) device controller + transceiver, 10-bit × 12-channel A/D converter, LIN hardware module, and multiple timers (RA/RB/RC/RF), targeting embedded control in consumer audio, cameras, and industrial equipment.
For engineers reviewing the R5F21348KNFP#V0 datasheet, R5F21348KNFP#V0 pinout, R5F21348KNFP#V0 application, or R5F21348KNFP#V0 equivalent, key selection criteria include USB device-only functionality (no host/OTG), −20°C to +85°C operating range (N version), 48-pin LQFP package (PLQP0048KB-A), and compatibility with Renesas' R8C/34K Group toolchain and debug infrastructure.
Technical Context
The R5F21348KNFP#V0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. It operates at up to 20 MHz (50 ns min instruction time, VCC = 2.7–5.5 V) and supports single-chip mode across a 1 Mbyte address space.
Its peripheral set includes UART0/1/2/3, I²C bus (shared with SSU), 14-bit watchdog timer, DTC (1 channel, 30 activation sources), and USB function controller with 448-byte FIFO (DCP + PIPE4–7). The USB module supports control, bulk, and interrupt transfers but lacks OTG capability-distinguishing it from R8C/34K variants with host/OTG support.
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 for real-time signal processing |
| Memory | 64 KB program ROM + 8 KB RAM + 4 KB data flash (1 KB × 4 blocks) with BGO for firmware updates without halting execution |
| USB Interface | USB 2.0 full-speed (12 Mbps) device controller + integrated transceiver; 5-pipe architecture (DCP + PIPE4–7); no host or OTG support |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold and sweep mode for multi-sensor analog acquisition |
| Operating Range | −20°C to +85°C ambient temperature (N version); supply voltage 1.8–5.5 V with low-power wait/stop modes (4.0 µA / 2.0 µA typical) |
| Package | 48-pin LQFP (PLQP0048KB-A), RoHS-compliant, 7 mm × 7 mm footprint with 0.5 mm pitch |
| Timers | Timer RA/RB (8-bit × 2), Timer RC/RF (16-bit × 2), plus dedicated LIN timing via Timer RA + UART0 |
Pinout & Package
Package: 48-pin LQFP (PLQP0048KB-A), 7 mm × 7 mm, 0.5 mm pitch, exposed pad not specified. Pin functions are fully programmable per peripheral multiplexing tables; USB pins (DP/DM/VBUS/VBUSEN/OVRCURA/OVRCURB/ID/EXICEN/DPRPD/DRPD/DPUPE) are dedicated and non-reassignable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_DP / USB_DM | D+/D− differential I/O | Direct connection to USB cable; on-chip transceiver eliminates external PHY requirement |
| USB_VBUS | VBUS monitor input | Detects USB cable insertion; enables automatic device enumeration upon connection |
| USB_VBUSEN | VBUS enable output | Drives external 5 V power switch to supply VCC when acting as bus-powered device |
| USB_OVRCURA / USB_OVRCURB | Overcurrent sense inputs | Monitor external current-limiting circuitry; trigger USB suspend on overcurrent fault |
| USB_ID | ID pin input | Reads micro-AB connector orientation; required for OTG-but R5F21348KNFP#V0 does not support OTG |
| P0_0–P0_7, P1_0–P1_7, etc. | CMOS I/O ports | 36 programmable I/Os with selectable pull-up resistors; high-current drive capability for direct LED/relay interface |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent code execution and data flash reprogramming-critical for field firmware updates without system reset |
| Hardware LIN Module | Integrated LIN 2.1 compliance via Timer RA + UART0; eliminates need for external LIN transceiver in automotive body electronics |
| Low-Power Modes | Wait mode (4.0 µA @ 3.0 V) and stop mode (2.0 µA @ 3.0 V) extend battery life in portable audio and sensor nodes |
| USB Device Controller | Fully integrated USB 2.0 FS device stack with 448-byte FIFO and pipe-level transfer control-reduces host-side driver complexity |
| 10-bit A/D with Sweep Mode | Automated sequential conversion across all 12 channels simplifies multi-sensor monitoring in home appliances and industrial HMI |
Applications
| USB Audio Interface | Camera Sensor Control |
|---|---|
|
Use Scenario: Embedded USB audio class device (e.g., headset, microphone array) requiring plug-and-play connectivity to PCs and mobile devices. IC Role / Device Role / Timing Role: USB device controller managing descriptor exchange, isochronous IN/OUT transfers, and clock synchronization via SOF. Use Value: Integrated USB transceiver and 448-byte FIFO eliminate external PHY and buffer memory, reducing BOM cost and PCB area by >30%. |
Use Scenario: Digital camera module controlling image sensor configuration, exposure timing, and JPEG compression metadata. IC Role / Device Role / Timing Role: Real-time sensor register programming via I²C, precise exposure timing via Timer RC, and A/D monitoring of lens position/voltage. Use Value: 12-channel 10-bit A/D with sweep mode captures lens motor feedback, battery voltage, and thermal sensors in one sequence-enabling closed-loop focus control. |
| Home Appliance UI Panel | Industrial LIN Node |
|
Use Scenario: Touchless control panel in washing machines or HVAC systems using capacitive sensing and LED indicators. IC Role / Device Role / Timing Role: Key input interrupt handler (KI0–KI3), PWM-driven LED dimming (Timer RB), and UART-based communication with main controller. Use Value: 36 high-drive I/Os directly drive LEDs and read proximity sensors without external drivers-cutting component count and assembly steps. |
Use Scenario: Slave node in automotive body control network (e.g., door module, seat actuator) communicating over LIN bus. IC Role / Device Role / Timing Role: Hardware LIN protocol engine (UART0 + Timer RA) handling frame scheduling, checksum, and error recovery autonomously. Use Value: Dedicated LIN hardware reduces CPU load to <5% during bus activity-ensuring deterministic response for safety-critical window lift commands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21348KDFP | Same R8C/34K Group silicon; −40°C to +85°C extended temperature grade (D version) vs. −20°C to +85°C (N version) | Required for industrial outdoor enclosures or automotive under-hood environments where wider thermal margin is mandatory | Select R5F21348KDFP if operating ambient exceeds 85°C or drops below −20°C; identical pinout and firmware compatibility |
| R5F2134CKNFP | 128 KB program ROM + 10 KB RAM (vs. 64 KB + 8 KB); same USB device controller, peripherals, and package | Suitable for applications needing larger firmware (e.g., OTA update stack, cryptographic libraries, or multi-language UI) | Choose R5F2134CKNFP when firmware size exceeds 64 KB or additional RAM is needed for buffering USB audio streams |
Compared with R5F21348KNFP#V0, R5F21348KDFP offers extended temperature operation without functional change, while R5F2134CKNFP provides double ROM/RAM capacity for complex firmware-both retain identical USB device functionality, pinout, and debug interface.
Availability
R5F21348KNFP#V0 is available at Aetrix Electronics and suitable for USB peripheral design, consumer audio interfaces, and industrial LIN node development requiring stable component supply and long-term production continuity.
Supply support for R5F21348KNFP#V0 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/34K Group-including R5F21348KNFP#V0-is engineered for cost-sensitive, USB-connected embedded systems requiring robust analog integration, low-power operation, and certified USB device functionality without host or OTG complexity.
FAQ
Does R5F21348KNFP#V0 support USB host or OTG functionality?
No. R5F21348KNFP#V0 implements only USB device controller functionality compliant with USB 2.0 full-speed (12 Mbps). It lacks USB host controller logic, OTG negotiation circuitry, and ID pin detection firmware support-unlike R8C/34K variants such as R5F2134CKNFP which enable OTG operation. R5F21348KNFP#V0 must operate exclusively as a peripheral device.
What is the maximum operating frequency and corresponding supply voltage for R5F21348KNFP#V0?
R5F21348KNFP#V0 achieves 20 MHz operation at VCC = 2.7–5.5 V (minimum instruction time 50 ns), and 5 MHz operation at VCC = 1.8–5.5 V. USB functionality is disabled above 5 MHz in 1.8 V mode; full USB operation requires ≥2.7 V supply. The high-speed on-chip oscillator supports frequency adjustment for clock accuracy tuning.
How many A/D converter channels does R5F21348KNFP#V0 support, and what is their resolution?
R5F21348KNFP#V0 integrates a single 10-bit successive-approximation A/D converter with 12 analog input channels (AN0–AN11). It supports sample-and-hold operation and sweep mode for automatic sequential conversion across all enabled channels-ideal for multi-sensor monitoring in home appliances and industrial controls.
Is R5F21348KNFP#V0 pin-compatible with other R8C/34K Group MCUs like R5F2134CKNFP?
Yes. R5F21348KNFP#V0 shares the identical 48-pin LQFP package (PLQP0048KB-A) and pin assignment with all R8C/34K Group members, including R5F2134CKNFP and R5F21348KDFP. Peripheral pin functions-including USB, UART, and A/D-are mapped identically, enabling drop-in replacement when ROM/RAM requirements scale.
What debug and programming interfaces are supported by R5F21348KNFP#V0?
R5F21348KNFP#V0 supports on-chip debug via Renesas E8/E8a emulators and Flash Development Toolkit (FDT). It includes ROM code protection, ID code check, and background operation (BGO) for in-system flash rewriting. Programming voltage is VCC = 2.7–5.5 V; no external HV programming supply is required.
R5F21348KNFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34K
- Packaging:
- Tray
- 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:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21348KNFP#V0 FAQ
1.How can I place an order for R5F21348KNFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21348KNFP#V0 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 R5F21348KNFP#V0 reliable?
The price and inventory of R5F21348KNFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21348KNFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F21348KNFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21348KNFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21348KNFP#V0?
R5F21348KNFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21348KNFP#V0 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 R5F21348KNFP#V0?
For technical support, including R5F21348KNFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21348KNFP#V0 requirements.
6.How does Aetrix verify that R5F21348KNFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21348KNFP#V0 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 R5F21348KNFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F21348KNFP#V0?
All R5F21348KNFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21348KNFP#V0, 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 R5F21348KNFP#V0 part is unused and in its original packaging.
Return procedure for R5F21348KNFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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