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E-L9823 pin 21 - NC

dcflipflop
Associate

Hi. Looking to use E-L9823 as a replacement in a legacy design.

The datasheet states pin 21 is not connected. Looking to confirm it is a true "no connect" internally on the part.  On our existing PCB it will be tied to +24V. Thanks.

2 REPLIES 2
Harirajan
Associate II

Hello ,

Did you find solution?  I'm also dealing with the same issue.

I opened a case and received the following reply from ST Customer Support.  I have not tried the part in circuit yet.

"For N.C. Pins, there is absolutely no connection from the pin labeled NC to the die. So it is floating."