CH341A
CH341A is USB bus convert manufactured by Unknown Manufacturer.
Features
2.1.Introduction
- Full speed USB device interface, conforms to USB Specification Version 2.0, only needs crystal and capacitance external.
- Optional: define Vender ID, production ID and list number through external low-cost serial EEPROM.
- Supports 5V and 3.3V power source.
- Low-cost, directly convert serial peripheral equipment, parallel printer and parallel peripheral equipment.
- SOP-28 and SSOP-20 package lead free, patible with Ro HS.
- Only patible with application layer because interfaces are diverted via USB.
Free Datasheet http://..
The Data Sheet of CH341 (the first)
2.2. UART
- Simulate standard serial used to upgrade serial peripheral equipment or increase extra serial via USB.
- Totally patible with serial application program of puter Windows operation system.
- Hardware full-duplex serial, on-chip transform and receive buffer, supports 50bps~2Mbps munication baud rate.
- Supporting five, six, seven or eight data bits, supporting odd, even, blank, token and no check.
- Supporting serial transfer and receive enable and serial receive ready etc transfer speed control signal and MODEM liaison signal.
- Providing RS232, RS485 and RS422 interface through adding level switch equipment external.
- Supporting indirectly access to outside serial EEPROM memory through standard serial munication.
2.3. Printer port
- Standard USB printer port used to upgrade parallel printer, conforms to relevant USB specification.
- patible with Windows operation system, totally patible with application program under Windows 2000 and XP without drive program.
- Supports various standard parallel printers, low-speed and high-speed print mode are optional.
- Supports bi-directional munication of...
