I looked at the data sheet for this ne 555p chip. I can not figure out where the pin locations are.?
formatting link
As in where is pin #1 in this picture?
Thanks, Andy
- posted
4 years ago
NE 555p Where does pin # 1 start?
Loading thread data ...
- Vote on answer
- posted
4 years ago
Pin 1 is at the corner nearest the small dot. Count counter-clockwise from there.
- Vote on answer
- posted
4 years ago
Ok, so 5 would be close to the P?
Andy
- Vote on answer
- posted
4 years ago
Am 06.05.2019 um 22:32 schrieb AK:
yess
- Vote on answer
- posted
4 years ago
Yes.
- Vote on answer
- posted
4 years ago
Check the data sheet!
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
- Vote on answer
- posted
4 years ago
Looks like it is in line with O to me.
- Vote on answer
- posted
4 years ago
Where do you see an O?
- Vote on answer
- posted
4 years ago
On the PCB
- Vote on answer
- posted
4 years ago
Yes, I overlooked the silk screening on the PCB. Pin 5 is in column O and next to the P on the IC.
- Vote on answer
- posted
4 years ago
Will I need these as well?
formatting link
formatting link
- Vote on answer
- posted
4 years ago
It would seem you are new to the digital side of things so it would be probably a good idea to use the chip sockets for when you let out the magic smoke. If the board you have is not big enough the use another.You may like to consider using a "breadboard" for developing or trying circuits, they have the benefits of being reuseable for small non critical circuits.
- Vote on answer
- posted
4 years ago
Ok. Found this.
formatting link
It looks like each row of 5 is connected together.
So if I insert an 8 pin chip, that would leave me 3 other points that I could connect other things to?
Andy
- Vote on answer
- posted
4 years ago
You insert the chip over the centre groove and have four spare points either side of the chip that connect to the corresponding pin. (unless it's a wide chip then you may have fewer holes available)
formatting link
-- When I tried casting out nines I made a hash of it.
- Vote on answer
- posted
4 years ago
Like Jason says and that would be a good starter for you. The 4 pins connected to each pin enables you to connect several components to them and form the circuit. Like in the chaser example.
- Vote on answer
- posted
4 years ago
Thanks Rheilly and Jasen.
- Vote on answer
- posted
4 years ago
All DIL chips have the same numbering system: stand it on its legs with the dot or cutout at one end away from you. Pins are always numbered the same way round.
yes, it'll avoid soldering frying the chip. Also means you can easily substitute chips when you run into faults.
You can use any PCB you like, that one should work.
NT
- Vote on answer
- posted
4 years ago
Bottom left corner.
-- Johnny B Good