HT42B534-1 USB to UART TTL Converter IC, SOP-8
Currently unavailable
No store has this product in stock right now. Prices below are the last ones we recorded.
Prices updated: 13 Oct 2026
Price history
Lowest daily price, last 90 days
Not enough price history yet.
About this product
HT42B534-1 is a USB 2.0 full-speed to UART bridge IC that lets a PC communicate with microcontrollers or modules over a TTL serial interface. It has an integrated high-speed oscillator and supports UART baud rates up to 3 Mbps. Use it when designing a custom USB-to-serial interface instead of a ready-made adapter board.
Specifications
- Operating voltage (VDD)
- 3.3 V - 5.5 V
- UART I/O voltage (VDDIO)
- 1.8 V - VDD
- Maximum UART baud rate
- 3 Mbps
- USB standard
- USB 2.0 Full Speed
- Package
- SOP-8, SMD
- Clock source
- Integrated high-speed oscillator
Frequently asked questions
What logic level does the UART pin use?
The UART I/O voltage (VDDIO) can be set from 1.8 V up to the VDD supply, which is 3.3 V to 5.5 V. Match VDDIO to the logic level of the microcontroller or module you are connecting.
Does it need an external crystal?
The listing states that the device uses an integrated high-speed oscillator as its clock source, so no external crystal is described. Check the datasheet for the complete application circuit and decoupling requirements.
