Tickled_Pink
New Member
I'm currently fiddling about with the MAX7300 I/O expander. One of my ideas is to use it as an interface to my Atari 8-bit (again) so that it can be used as a digital IC tester. In order to do this, I need to be able to manipulate all the pins on the ZIF socket into which the IC to be tested will be inserted.
Obviously, not all ICs have the same number of pins or even pin arrangements, so I'm hoping that the 7300 can be used to provide both power (Vcc) and ground for the numerous ICs.
My question is concerning the grounding of the target IC. Basically, can one IC's input pin be used to ground another IC through the target's GND pin. If so, are there any issues I might need to be made aware of?
Thanks
Obviously, not all ICs have the same number of pins or even pin arrangements, so I'm hoping that the 7300 can be used to provide both power (Vcc) and ground for the numerous ICs.
My question is concerning the grounding of the target IC. Basically, can one IC's input pin be used to ground another IC through the target's GND pin. If so, are there any issues I might need to be made aware of?
Thanks