USB to UART converter ICs bridge USB and serial UART for MCU programming, debugging, and PC connectivity.
Product Overview
A USB-to-UART (USB-to-serial) bridge IC provides a seamless interface between a USB host (PC) and a microcontroller’s UART (TTL/CMOS) port. It handles USB enumeration, protocol translation, and baud-rate generation internally, exposing a standard asynchronous serial interface to the target device. Newfly supplies verified USB-to-UART bridge ICs (FT232-class, CH340-class, CP210x-class) with cross-reference and BOM-matching support for production sourcing.
Key Features
- – Full-speed USB 2.0 interface
- – UART baud rates up to 3 Mbps (verify by variant)
- – 3.3 V / 5 V tolerant I/O (verify by variant)
- – Integrated USB transceiver (no external crystal on some variants)
- – Hardware / software flow control (RTS / CTS)
- – Built-in FIFO buffers
- – Low-power, bus-powered or self-powered options
- – RoHS-compliant
Technical Specifications
| Parameter | Specification |
|---|---|
| Interface | USB 2.0 Full-Speed to UART |
| Baud Rate | Up to 3 Mbps (verify with datasheet) |
| UART Signals | TX, RX, RTS, CTS, DTR, DSR (variant dependent) |
| I/O Voltage | 3.3 V / 5 V (verify by variant) |
| USB Connector | Type-A / Micro-B (host board dependent) |
| Package | QFN / SSOP / SOIC (verify by variant) |
| Compliance | RoHS, USB-IF (verify) |
Applications
– MCU programming and firmware flashing
– Debug console / serial logging
– Industrial PC communication
– POS and peripheral interfaces
– IoT gateway connectivity
Why Choose Newfly Electronics
– Verified sourcing from ISO9001-certified manufacturers
– MOQ flexibility with small-quantity and prototype sourcing support
– Alternative-part and cross-reference service for USB-to-UART bridge ICs
– Full-board BOM sourcing to consolidate your component purchasing
– RoHS / REACH documentation support for compliance filing
FAQ
Q: What baud rate is supported?
A: Up to 3 Mbps depending on the specific bridge variant; confirm with the datasheet.
Q: Is a driver required?
A: Yes, standard vendor USB VCP drivers are required for most bridges; some OS-native support exists.
Q: Can you provide a cross-reference?
A: Yes. Share your BOM and Newfly will suggest compatible USB-to-UART bridge ICs.
