Optically isolated USB to serial port 5V3.3V2.5V1.8V optically isolated USB to TTL serial port CH340 UART
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- Supplier: Shenzhen YTF Technology Co. Limited
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Product Overview
Description
Optically isolated USB to TTL serial port (ie UART, COM port)
The product model on this page: MCS-86C
MCS-86C is an optically isolated USB to UART serial port, using CH340 chip, classic and reliable optocoupler isolation circuit, with 1500V isolation voltage and up to 921600bps communication rate, providing 5V/3.3V two levels, very suitable for high voltage, strong Serial communication and debugging under interference conditions fully guarantee computer safety.
This module is delivered with 20cm DuPont cable 4P. If you need a USB extension cable, 50cm/100cm DuPont cable, click the link below.
1.50cm/100cm lengthened Dupont line,Click here to buy.2. USB extension cable,Click here to buy.
main feature
● Original CH340 main control, providing Windows/Lniux/Mac 32/64 bit operating system driver, native serial port program does not need any modification.
●Original imported high-speed optocoupler, good waveform, maximum speed of 921600bps (8 times of 115200)
●Complete electrical isolation (including power supply and GND), 1500V withstand voltage, fully protect the computer and personal safety.
●There is no electrical connection between the USB and serial ports, which fully guarantees that the computer will not be damaged due to external short circuits, impacts, etc., and will not crash due to strong pulses or interference.
●PCB is slotted, and the isolation distance is more than 3mm to ensure enough distance to avoid creepage.
●Original Jinshengyang lengthened isolated power supply, with large spacing and high voltage resistance.
●The output power VCC and signal level can be switched to 5V/3.3V, which is suitable for systems with different voltages.
●Integrated isolated power supply, USB plug and play, no separate power supply, and can provide 100mA current output to the outside.
●The signal line integrates protection diodes to improve shock resistance.
●Integrated power supply, sending and receiving three LED indicators, convenient to observe the communication status.
●TX integrates reverse diodes and provides TX-D with open-drain output, which is convenient for programming the MCU program (TX without reverse diodes will supply power to the MCU and cause incomplete power failure and download failure)
Pin function
The pins that must be connected for normal communication:
●Level selection pin:Used to select the signal and power VCC pin level,Must be connected to either 5V or 3.3V.
●TX:Serial data transmission pin (refers to the module's own data outflow→, corresponding to the RX. data reception of the external device.)
●RX:Serial data receiving pin (refers to the module's own data input ←, corresponding to the TX. data transmission of the external device.)
●GND:Power ground (GND must be connected and not connected wrongly, otherwise it may damage the device or serial port module)
The following pins are not necessary for communication, you can decide whether to connect according to your needs
●VCC:Power output (The voltage is determined by the level selection jumper cap, the maximum load should not exceed 150mA, and it is recommended to be below 100mA)
●TX-D:The TX that passes through the reverse diode, that is, the TX signal of open-drain output, can only output low level and needs to be pulled high externally. When STC MCU downloads the program, use TX-D instead of TX and connect to the P30 pin of MCU.
●5V:5V power output (from USB,The maximum load shall not exceed 150mA, and it is recommended to be below 100mA).
●3.3V:3.3V power output(From LDO,The maximum load shall not exceed 150mA, and it is recommended to be below 100mA).
prompt
● This module can support the signal pin and power pin to switch to 5V/3.3V at the same time (use VCC for external power supply, the signal pin and VCC level are the same), and can also support the signal and power to use different levels (use 5V or 3.3 V pin provides external power supply).
● In the factory test, the default level is 3.3V. TX/RX are directly connected, just remove it when using.
●Baud rate:50, 75, 100, 110, 134.5, 150, 300, 600, 900, 1200,1800, 2400, 3600, 4800, 9600, 14400, 19200, 28800, 33600, 38400, 56000, 57600, 76800, 115200, 128000, 153600, 230400, 460800, 921600, 1500000, 2000000(Other non-standard rates are not supported)
Precautions
● There are some isolated serial ports on the market that require an external power supply. This module integrates an isolated power supply and does not require an external connection. USB plug and play.
● This module is TTL level (5V/3.3V) and cannot be connected to RS-232 level (+-5V to +-15V). Please confirm the level of your device before use.
The product model on this page: MCS-86C
MCS-86C is an optically isolated USB to UART serial port, using CH340 chip, classic and reliable optocoupler isolation circuit, with 1500V isolation voltage and up to 921600bps communication rate, providing 5V/3.3V two levels, very suitable for high voltage, strong Serial communication and debugging under interference conditions fully guarantee computer safety.
This module is delivered with 20cm DuPont cable 4P. If you need a USB extension cable, 50cm/100cm DuPont cable, click the link below.
1.50cm/100cm lengthened Dupont line,Click here to buy.2. USB extension cable,Click here to buy.
main feature
● Original CH340 main control, providing Windows/Lniux/Mac 32/64 bit operating system driver, native serial port program does not need any modification.
●Original imported high-speed optocoupler, good waveform, maximum speed of 921600bps (8 times of 115200)
●Complete electrical isolation (including power supply and GND), 1500V withstand voltage, fully protect the computer and personal safety.
●There is no electrical connection between the USB and serial ports, which fully guarantees that the computer will not be damaged due to external short circuits, impacts, etc., and will not crash due to strong pulses or interference.
●PCB is slotted, and the isolation distance is more than 3mm to ensure enough distance to avoid creepage.
●Original Jinshengyang lengthened isolated power supply, with large spacing and high voltage resistance.
●The output power VCC and signal level can be switched to 5V/3.3V, which is suitable for systems with different voltages.
●Integrated isolated power supply, USB plug and play, no separate power supply, and can provide 100mA current output to the outside.
●The signal line integrates protection diodes to improve shock resistance.
●Integrated power supply, sending and receiving three LED indicators, convenient to observe the communication status.
●TX integrates reverse diodes and provides TX-D with open-drain output, which is convenient for programming the MCU program (TX without reverse diodes will supply power to the MCU and cause incomplete power failure and download failure)
Pin function
The pins that must be connected for normal communication:
●Level selection pin:Used to select the signal and power VCC pin level,Must be connected to either 5V or 3.3V.
●TX:Serial data transmission pin (refers to the module's own data outflow→, corresponding to the RX. data reception of the external device.)
●RX:Serial data receiving pin (refers to the module's own data input ←, corresponding to the TX. data transmission of the external device.)
●GND:Power ground (GND must be connected and not connected wrongly, otherwise it may damage the device or serial port module)
The following pins are not necessary for communication, you can decide whether to connect according to your needs
●VCC:Power output (The voltage is determined by the level selection jumper cap, the maximum load should not exceed 150mA, and it is recommended to be below 100mA)
●TX-D:The TX that passes through the reverse diode, that is, the TX signal of open-drain output, can only output low level and needs to be pulled high externally. When STC MCU downloads the program, use TX-D instead of TX and connect to the P30 pin of MCU.
●5V:5V power output (from USB,The maximum load shall not exceed 150mA, and it is recommended to be below 100mA).
●3.3V:3.3V power output(From LDO,The maximum load shall not exceed 150mA, and it is recommended to be below 100mA).
prompt
● This module can support the signal pin and power pin to switch to 5V/3.3V at the same time (use VCC for external power supply, the signal pin and VCC level are the same), and can also support the signal and power to use different levels (use 5V or 3.3 V pin provides external power supply).
● In the factory test, the default level is 3.3V. TX/RX are directly connected, just remove it when using.
●Baud rate:50, 75, 100, 110, 134.5, 150, 300, 600, 900, 1200,1800, 2400, 3600, 4800, 9600, 14400, 19200, 28800, 33600, 38400, 56000, 57600, 76800, 115200, 128000, 153600, 230400, 460800, 921600, 1500000, 2000000(Other non-standard rates are not supported)
Precautions
● There are some isolated serial ports on the market that require an external power supply. This module integrates an isolated power supply and does not require an external connection. USB plug and play.
● This module is TTL level (5V/3.3V) and cannot be connected to RS-232 level (+-5V to +-15V). Please confirm the level of your device before use.
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