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Electronics => Beginners => Topic started by: Hornnumb2 on January 19, 2019, 09:53:59 pm

Title: ic config
Post by: Hornnumb2 on January 19, 2019, 09:53:59 pm
How do I know where pin one is on this, so I can replace. Thanks Michael
Title: Re: ic config
Post by: blueskull on January 19, 2019, 10:00:20 pm
The corner where there is a dot on the package is pin 1.

Top right corner.

BTW, it's a GigaDevice flash memory. You need to program the chip before soldering the replacement on
Title: Re: ic config
Post by: Hornnumb2 on January 19, 2019, 10:18:01 pm
Thanks I really could tell if that was a dot or not, yeah the chip I bought is already programmed. Michael
Title: Re: ic config
Post by: blueskull on January 19, 2019, 10:52:25 pm
Thanks I really could tell if that was a dot or not, yeah the chip I bought is already programmed. Michael

Top right corner. The dot is a small indent.
Title: Re: ic config
Post by: james_s on January 19, 2019, 11:06:50 pm
It's also marked on the PCB silkscreen, the notch indicates the end with pin 1. With the chip right side up, pin 1 is always the bottom-left corner, most of the time the text is printed right side up on the IC however I have seen pictures of a few examples where this wasn't the case. Never personally encountered one though.