Features :

    1、It uses CH341, more stable and reliable than PL2303
    2、On-board coldstart button makes downloading more easily
    3、While with small load, this module can serve as power supply
    4、Suitable to all STC microcontrollers
    5、Can also work as USB-TTL module


 

 

Parameter：

    1、 VCC: +5V output
    2、TXD: UART data output
    3、RXD: UART data input
    4、VSS: Controllable Power Negative
    5、GND: GND


Connection：

 

 

If the device has other power supply, VCC connection is not necessary. VSS is controllable power negative. While connecting VSS to GND of the other device, such as MCU, the on-board coldstart button can be used to restart the device. Please note that only while the other device is powered by this downloader, the coldstart button works. If you don't need this button, directly connect GND to GND of the device.

Attention：

    1、 Click here to downloading the software and driver.

    2、 If downloading fails, please lower thr baud rate and try again.

    3、Please follow the order of STC_ISP instruction. Import files firsr, then click download.

    4、 Coldstart is not reset. Coldstart is repower the module.

 

 

 

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