Synth-DIY Yahoo! Groups Archives

Silly IC pin question

2001-10-17 by Aardvark-mi

Ok, here's an IC question from a never touched an IC before MOTM non-EE type!

If pin 1 on an IC is the one with the dot than what are the other pins?

Do they go

1-3-5-7 on one side and

2-4-6-8 on the other

or

1-2-3-4

5-6-7-8

or

1-2-3-4

8-7-6-5

or

Is it a secret that you could tell me but you'd have to kill me!!!

Tx

Al Wagner

RE: Silly IC pin question

2001-10-17 by mate_stubb@yahoo.com

None of the above.

Picture your 8-pin IC with the notch or dot facing left, viewed from 
the top. Pinout would be:

8 7 6 5
)      |
1 2 3 4

Moe

Re: [motm] Silly IC pin question

2001-10-17 by Paul Schreiber

They count counter-clockwise, from pin 1. In 99.999%, pin 1 is the top, left corner.

The exception in the PLCC package, where pin 1 in the in middle of the top row (the package is a square).

The thing to remember is to count counter-clockwise.

So, for a 8-pin part, pin 1 is "across" from pin 8.

Paul S.

Show quoted textHide quoted text

----- Original Message -----

From: Aardvark-mi

To: motm@yahoogroups.com

Sent: Wednesday, October 17, 2001 9:41 AM

Subject: [motm] Silly IC pin question

Ok, here's an IC question from a never touched an IC before MOTM non-EE type!

If pin 1 on an IC is the one with the dot than what are the other pins?

Do they go

1-3-5-7 on one side and

2-4-6-8 on the other

or

1-2-3-4

5-6-7-8

or

1-2-3-4

8-7-6-5

or

Is it a secret that you could tell me but you'd have to kill me!!!

Tx

Al Wagner

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

RE:Thanks! [motm] Silly IC pin question

2001-10-17 by Aardvark-mi

Thank you Paul and Moe!

I'm off work today and decided this would be my day to do MOTM and MOTM related stuff! (Wife's at work, kids are in school and I have the house to myself)

Just did the jumper from U6 pin 1 - pin 5 on my Miniwave, Thank you for your help!

I did the resister change in my 420!

Finishes soldering the boards for my LH822 and LH831 (going to fire up the drill press and do the front panels next)

Fininshed my multiple (simple 1 in 3 out's no fancy cascade's!!!)

And to top it off I finished my 2nd cabinet!!!

Looks like I'm all caught up just in time for the pedal interface!!!

Tx Al

-----Original Message-----
From: Paul Schreiber [mailto:synth1@airmail.net]
Sent: Wednesday, October 17, 2001 11:06 AM
To: motm@yahoogroups.com; Aardvark-mi
Subject: Re: [motm] Silly IC pin question

Show quoted textHide quoted text

They count counter-clockwise, from pin 1. In 99.999%, pin 1 is the top, left corner.

The exception in the PLCC package, where pin 1 in the in middle of the top row (the package is a square).

The thing to remember is to count counter-clockwise.

So, for a 8-pin part, pin 1 is "across" from pin 8.

Paul S.

----- Original Message -----

From: Aardvark-mi

To: motm@yahoogroups.com

Sent: Wednesday, October 17, 2001 9:41 AM

Subject: [motm] Silly IC pin question

Ok, here's an IC question from a never touched an IC before MOTM non-EE type!

If pin 1 on an IC is the one with the dot than what are the other pins?

Do they go

1-3-5-7 on one side and

2-4-6-8 on the other

or

1-2-3-4

5-6-7-8

;

or

1-2-3-4

8-7-6-5

or

Is it a secret that you could tell me but you'd have to kill me!!!

Tx

Al Wagner

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.