Please help me identify the ICs on this Board

I have the following module which can be found on this website :- http://www.elecrow.com/uart-ttl-to-rs485-twoway-converter-p-1545.html

It is simply a bidirectional Uart TTL to RS485 converter. I have included the images below. The 8 pin small ic (U1) is RS485 which is itself unidirectional. I need help in identifying the second chip (U2), the one with 14 pins. This ic is responsible for switching between transmission and reception mode of the 485 ic. I have the module with me but the name of the ic has been erased. Plus there is no datasheet for the module available on the website. Could anyone please suggest what is the name of this ic??

Please help me identify the ICs on this Board

Please help me identify the ICs on this Board

Replay

Added bottom layer

Please help me identify the ICs on this Board

Surely it must drive DE/RE pin (SOIC8 2 and 3) of transceiver depending from TXD (if TXD is LOW then DE/RE HIGH).

US VS China...

Once upon a time, in a different universe, I designed an exquisite electroluminescent driver which was mindful of efficiency.

My client then submitted my design to the Chinese, and they responded with a transformer with thicker laminations in order to try to win the bid.

They did, and we're now burning more wood than we should be.

Category: integrated circuit Time: 2016-07-30 Views: 0

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