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Tabellenausschnitt aus einem Datenblatt
Symbol Parameter Description Min. Typ. Max. Unit FCLK Frequency of input clock in XI 11.98 12.00 12.02 MHz
in „CH341B und flashrom“ · Mikrocontroller und Digitale Elektronik · · Screenshots
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PDF
CH340DS1.PDF
communication between the MCU and the CH340K via UART. CH340K is powered by the USB bus VBUS (VCC), the MCU uses another power supply VDD, which supports 5V, 3.3V or even 2.5V, 1.8V. The backplane of the CH340K package is an optional GND pin
in „CH340G meldet sich nicht als serielle Schnittstelle am PC (Windows)“ · Mikrocontroller und Digitale Elektronik ·
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PDF
CH340_USB_UART.pdf
acceptable too. Usually, we don’t recommend power CH340 and MCU separately if not necessary. 7.8. Connect CH340K to MCU and supply power separately The figure above shows the reference circuit for USB communication between the MCU and the CH340K via UART. CH340K is powered by the USB bus VBUS (VCC), the MCU uses
in „FT232 lieferbar?“ · Mikrocontroller und Digitale Elektronik ·
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Screenshot eines Datenblatts für CH340 UART Chips
CH340 Datasheet (I) CH340G/CH340T/CH340R CH340C/CH340N/CH340K/CH340E/CH340X/CH340B
in „CH340N nur bis 38400 Baud?“ · Mikrocontroller und Digitale Elektronik · · Screenshots
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Schaltplan eines CH340 USB-zu-Seriell-Wandlers
U9 CH340K CH340N CH340E CH340X CH340C P12 USB D+ D- VBUS VCC 1 2 3 4 UD+ UD- GND V3 RXD TXD VCC C45 0.1u C44 0.1u DTR# CTS# RTS#
in „CH340N nur bis 38400 Baud?“ · Mikrocontroller und Digitale Elektronik · · Schaltpläne
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Tabelle mit USB-Controller-Spezifikationen
230400bps CH9340C, 1, Full-speed, CDC, 1Mbps, 230400bps CH340B, 1, Full-speed, VCP, 2Mbps, 460800bps CH340K, 1, Full-speed, VCP, 230400bps, 230400bps
in „CH340N nur bis 38400 Baud?“ · Mikrocontroller und Digitale Elektronik · · Screenshots
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Tabelle mit USB-Controller-Spezifikationen
230400bps CH9340C, 1, Full-speed, CDC, 1Mbps, 230400bps CH340B, 1, Full-speed, VCP, 2Mbps, 460800bps CH340K, 1, Full-speed, VCP, 230400bps, 230400bps
in „CH340N nur bis 38400 Baud?“ · Mikrocontroller und Digitale Elektronik · · Screenshots
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Treiber-Downloadseite für WCH CH340 Chipsatz
Chipset(s) WCH CH340 Also Known As Arduino ch340 driver USB-SERIAL CH340 USB-SERIAL CH341A USB-SERIAL CH340K USB-SERIAL CH330 Version 3.8.2003.02 Interface/port(s) USB RS-232 (DB9) Drivers: USB Driver>> (Latest) WCH CH340 Driver OS: Windows 11/10/8/1/7/Vista/XP/2000/98/Server 2022/2019/2016/2012/2008/2003
in „Keine Kommunikation zu esp32 möglich“ · Mikrocontroller und Digitale Elektronik · · Screenshots