Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Comments on Need help to replace 555

Post

Need help to replace 555

+1
−3

Hi guys, Can anyone help me please replace the NE555 IC in this circuit by MIC1555. I need to modify also the Voltage to 18v thank you.

MIC1555 datasheet

NE555 datasheet

circuit to be edited

Edit:
The circuit above represents a PWM generator where the user can adjust the frequency separately from the duty cycle and vice versa, but the disadvantages of this circuit are the limitation of the NE555 that is manifested in low frequency 100khz and a high rise/fall time of 100ns to 300ns. And since the MIC1555 is a member of the family of the most known IC timer the 555 I thought that it can replace the NE555 with your help.

History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.
Why should this post be closed?

2 comment threads

Ambiguity (4 comments)
Problems with this question. (2 comments)
Ambiguity
Andy aka‭ wrote about 2 years ago

You said "voltage 18v" but your circuit shows 5 volts. You need to explain what you mean.

deleted user wrote about 2 years ago

Hi Andy yes the voltage also gonna be 18v in place of 5v can you help please?

Olin Lathrop‭ wrote about 2 years ago

It's OK to answer Andy here, but you also need to fix the question so that everyone else can see too. Content isn't expected to be in comments. As it is, the question is inconsistent with itself.

deleted user wrote about 2 years ago · edited almost 2 years ago

I will fix that Mr. Olin .