به طور کلی این آی سی ،قطعه بسیار مفیدی برای ارتباط بین کامپیوترها و بردهای الکترونیکی از طریق پورت USB میباشد.
تراشه مبدل USB به سریال CH341A به تمام میکروکنترلرهای دارای رابط سریال قابل اتصال است.
سرعت انتقال داده در این
IC بین 50bps تا 2Mbps میبتشد و با ولتاژ 3.3 و 5 ولت تغدیه میشود.
Description:
CH341 is a USB bus convert chip, providing UART, printer port, parallel and synchronous serial with 2-wire or 4-wire through USB bus.
In UART mode, CH341 provides alternant rate control signals such as serial transfer enable, serial receive in ready etc. It also supplies common MODEM communication signal in order to expand UART for computer or upgrade common synchronous interface device to USB bus directly.
In printer port mode, CH341 supplies standard USB printer port which compounds USB relevant protocol and Windows operate system used to upgrade ordinary parallel printer to USB bus directly.
In parallel mode, CH341 gives out 8-bit parallel in EPP or MEM mode. It can be used to input/output data directly without MCU/DSP. Besides, CH341A also supports some common synchronous serial such as 2-wire (SCL, SDA) and 4-wire (CS, SCK/CLK, MISO/SDI/DIN and MOSI/SDO/DOUT) interface.
Application:
USB to serial protocol conversion
PC connection to electronic boards
Specifications:
Number of pins: 28 pins
Data transfer speed: 50bps ~ 2Mbps
Input voltage: 3.3V , 5V
Communication protocol: RS232, UART, RS422, RS485, USB
Logic voltage level: 3.3Vdc , 5Vdc , 2.8Vdc , 1.8Vdc
Operating temperature range: -40°C ~ 85°C
Package: SMD SOP28