FT232RL Magnetically isolated USB to TTL serial port (ie UART, COM port)
MCS-88 is a magnetically isolated USB to TTL serial interface (ie UART/COM port), the main control uses FTDI USB chip FT232RL, originally designed by DBS Technology, with 1000V DC isolation voltage and reliable communication speed up to 3Mbps, USB The side and TTL side are completely isolated, which fully guarantees the safety of the computer and effectively reduces interference.
Insist on using original chips, brand new materials, 100% inspection and shipment
●5V/3.3V (dual level): The power supply voltage and signal level can be switched to 5V/3.3V, and the power supply voltage and signal are different. Send DuPont line.
●5V/3.3V/2.5V/1.8V (four-level): The power supply voltage and signal level can be switched to 5V/3.3V/2.5V/1.8V, and the power supply voltage and signal are different. Send DuPont line.
main feature
●FT232RL main control, the industry's excellent USB-to-serial chip, a stable choice for industrial applications.
●The latest generation of ADI magnetic isolation chip ADU3201 has fast speed, high waveform, and power consumption is significantly lower than that of photoelectric isolation.
● On-board large-spacing isolated power supply, no need for external power supply, just plug in the USB interface to use.
● Increase the isolation gap and slot the PCB to better avoid creepage and improve safety performance.
● Integrated protection diode to improve protection ability.
● USB-A male connector, no need to connect cable, directly plug into the computer USB port to use.
● The communication level can be conveniently switched to 5V or 3.3V through the jumper cap (four-level models support 2.5V/1.8V).
● VCC can output voltage 5V or 3.3V (four-level model supports 2.5V/1.8V). , The communication level and VCC can be the same or different.
● TX leads to TX-D (open-drain output) through the reverse diode, which is convenient for programming STC single-chip microcomputer, and avoids incomplete programming failure after power failure.
● On-board power supply, sending and receiving three LED indicators, and observe the communication status at any time (dedicated IO driver, not connected in parallel to the signal line, does not affect communication).
typical application
● Isolation USB to TTL serial communication and debugging equipment under high-voltage dangerous situations.
● Upgrade the peripheral firmware such as routers and set-top boxes.
● Burn (download) MCU program
● High-speed USB UART communication (up to 2Mbps)
● Built into the product to improve communication reliability
Accessories Picture
The DuPont cable is a gift, and the USB extension cable can be purchased according to your needs.
Pin function
●Level selection pin: used to select the signal and power VCC pin level, it must be connected to one of 5V or 3.3V.
●TX/RX: serial data pin (refers to the module's own TX. data transmission/RX. data reception, corresponding to the RX/TX of the external device.)
●GND: power ground (GND must be connected and must not be connected wrongly, otherwise the device or serial port module may be damaged)
The above are the pins that must be connected for normal communication.
●VCC: power output (depending on whether the external device needs power supply to determine whether to connect or not, the maximum current must not exceed 500mA)
●TX-D: TX through the reverse diode, that is, the TX signal with open drain output, which can only output low level and needs to be pulled high externally. When the STC microcontroller downloads the program, use TX-D instead of TX and connect to the P30 pin of the MCU.
prompt
● This module can support the signal pin and power pin to switch to 5V/3.3V/2.5V/1.8V at the same time (using VCC for external power supply, the signal pin and VCC level are the same), and it can also support the use of different power supply for the signal and power supply. Ping (use 5V or 3.3V/2.5V/1.8V row for external power supply).
● In the factory test, the default level is 3.3V or 1.8V. TX/RX are directly connected, just take it off when in use.
Precautions
● This is a 5V/3.3V/2.5V/1.8V TTL level serial port, please do not connect RS-232 level equipment (+-5V to +-15V)
● The load of this module must not exceed 150mA, otherwise there is a risk of overload damage to the module or computer USB (communication only requires three GND/TX/RX wires).
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