| Author |
Message |
Chris W
Guest
|
 Posted:
Wed Feb 16, 2005 6:10 am Post subject:
What is this symbol? |
|
|
I was looking at the logic diagram of a 74LVX238 and there is a symbol
that looks like a NOT gate, except it has the little circle on the input
instead of the output. What is that?
--
Chris W
Gift Giving Made Easy
Get the gifts you want &
give the gifts they want
http://thewishzone.com
"They that can give up essential liberty
to obtain a little temporary safety
deserve neither liberty nor safety."
-- Benjamin Franklin, 1759 Historical Review of Pennsylvania
|
|
| Back to top |
|
 |
John Popelish
Guest
|
| Posted:
Wed Feb 16, 2005 6:10 am Post subject:
Re: What is this symbol? |
|
|
Chris W wrote:
| Quote: |
I was looking at the logic diagram of a 74LVX238 and there is a symbol
that looks like a NOT gate, except it has the little circle on the input
instead of the output. What is that?
|
I think it indicates an input that is active when low.
--
John Popelish |
|
| Back to top |
|
|
John Fields
Guest
|
| Posted:
Wed Feb 16, 2005 6:10 am Post subject:
Re: What is this symbol? |
|
|
On Tue, 15 Feb 2005 18:57:06 -0600, Chris W <1qazse4@cox.net> wrote:
| Quote: | I was looking at the logic diagram of a 74LVX238 and there is a symbol
that looks like a NOT gate, except it has the little circle on the input
instead of the output. What is that?
|
---
It's still an inverter, but the "bubble" on the input means that
that's what's important to the circuit; a _low_ on the input of the
inverter causes the desired action to occur on its output.
--
John Fields
|
|
| Back to top |
|
|
|
|
|
|
FAQ
Memberlist
Register
Profile
Log in to check your private messages
Log in