DataSheetWiki


CH340 fiches techniques PDF

ETC - USB to Serial Chip

Numéro de référence CH340
Description USB to Serial Chip
Fabricant ETC 
Logo ETC 





1 Page

No Preview Available !





CH340 fiche technique
The DataSheet of CH340 (the first)
1
USB to serial chip CH340
English DataSheet
Version: 1D
http://wch.cn
1. Introduction
CH340 is a USB bus convert chip and it can realize USB convert to serial interface, USB convert to
IrDA infrared or USB convert to printer interface.
In serial interface mode, CH340 supplies common MODEM liaison signal, used to enlarge
asynchronous serial interface of computer or upgrade the common serial device to USB bus directly. More
detail about USB convert to printer interface please referring to the second manual CH340DS2.
In infrared mode, add infrared transceiver to CH340 can compose USB infrared adapter, realize SIR
infrared communication.
Computer
or other
USB host
USB
CH340
convert
chip
UART/RS232/IrDA infrared SIR
parallel printer to USB printer
2. Features
Full speed USB device interface, conforms to USB Specification Version 2.0, only needs crystal and
capacitance external.
Emulate standard serial interface, used to upgrade the former peripheral device, or add excess serial
interface through USB.
Totally compatible with serial application program in computer endpoint Windows operation system.
Hardware full duplex serial interface, set transceiver buffer, supports communication baud rate varies
from 50bps to 2Mbps.
Supports common MODEM liaison signal RTS, DTR, DCD, RI, DSR and CTS.
Through adding level converter equipment to supply RS232, RS485, RS422 and other interface.
Supports IrDA criterion SIR infrared communication, supports baud rate varies from 2400bps to
115200bps.
For it is through USB converts to serial interface, only compatible with application layer not totally.
Software compatible with CH341, using drive of CH341 directly.
Support 5V and 3.3V source voltage.
Supply SSOP-20 package without lead, compatible with RoHS.

PagesPages 11
Télécharger [ CH340 ]


Fiche technique recommandé

No Description détaillée Fabricant
CH340 USB to Serial Chip ETC
ETC
CH340BPT (CH320BPT - CH340BPT) SCHOTTKY BARRIER RECTIFIER Chenmko Enterprise
Chenmko Enterprise
CH340RDWPT SCHOTTKY BARRIER DIODE Chenmko Enterprise
Chenmko Enterprise
CH340SDWPT SCHOTTKY BARRIER DIODE Chenmko Enterprise
Chenmko Enterprise

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche