CH343
CH343 is USB to High-Speed Serial Chip manufactured by Unknown Manufacturer.
Features l Full-speed USB device interface, USB 2.0 patible. l Built-in firmware , emulate standard UART interface, used to upgrade the original serial peripherals or expand additional serial UART via USB. l Original serial applications are totally patible without any modification. l Supports free installation OS which built-in CDC driver or multifunctional high-speed VCP vendor driver. l Hardware full-duplex serial UART interface, integrated independent transmit-receive buffer, supports munication baud rate varies from 50bps to 6Mbps. l Supports automatic identification and dynamic adaptation of mon munication baud rate of
115200bps and below. l Supports 5, 6, 7 or 8 data bits, supports odd, even, space, mark and no parity. l Supports mon MODEM interface signals RTS, DTR, DCD, RI, DSR and CTS. l Supports CTS and RTS hardware automatic flow control. l Supports half-duplex, provides sending status TNOW which support RS485 to switch. l Supports RS232 interface, through external voltage conversion chip. l Supports USB port 5V and 3.3V power supply. l I/O independent power supply, supports 5V, 3.3V, 2. 5 V and 1.8V power supply. l Integrated power-on reset, integrated 12MHz clock, no external crystal required. l CH343P integrates EEPROM used to configure the chip of VID, PID, maximum current value , vendor and product information string, etc. l Chip has integrated Unique ID (USB Serial Number). l Ro HS pliant SOP-16, ESSOP-10 and QFN16 lead-free package.
CH343 Datasheet
3. Packages
Package Width Of Plastic Pitch Of Pin
Instruction Of Package
Ordering Information
SOP16 3.9mm 150mil 1.27mm 50mil Small outline 16-pin patch
CH343G
ESSOP10
3.9mm
150mil 1.00mm
39mil
Shrink Small outline 10-pin patch with backplane
CH343K
QFN16-3X3 3- 3mm
0.5mm 19.7mil Square leadless 16-pin
CH343P
Note: The backplane of the CH343K and CH343P is 0# pin GND, which is an optional but remended connection; other GND are necessary connections.
USB transceiver of CH344 is designed...