Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

how-to creating new footprint

Status
Not open for further replies.

rmomin

Newbie level 2
Joined
Apr 5, 2009
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,297
64 lqfp footprint

Hi, I'm new to pcb design and currently using orcad 9.1. I have a 112-pin lqfp chip that I would like to use and it does not exist in the orcad library. The chip I am using contains all physical spacing and dimensions that I need but I do not know how to create the footprint. Also using orcad schematic, i have noticed that all of the mcu's have pins on only two of the four sides. What about the mcu's that have 112, 128, etc number of pins and have them on all four sides? I have searched online for tutorials but have been unsuccessfull. The only tutorials I found with mcu's were ones that had like 28 pins only on two of the sides. Any help would be greatly appreciated.

Thanks
 

FFFFFF

Full Member level 1
Joined
Jul 22, 2002
Messages
96
Helped
6
Reputation
12
Reaction score
1
Trophy points
1,288
Location
LUNAPARK
Activity points
630
128 lqfp footprint

you are sure new for design a pcb !!

the first work has to make is to learn how make your own libraries

exist many documentations / tutorials ...

search with google

look in PLCC library , you have exemples as PLCC32 / 64 / ... / 100 / 124

FFFFFF
 

rmomin

Newbie level 2
Joined
Apr 5, 2009
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,297
lqfp footprint

so would I be creating a new library in the schematic or in orcad layout? Oh btw... the mcu i am using is the Freescale MC9S12DP512MPVE. Also can you tell me what the difference betweek lqfp and PLCC is or are they apples and oranges?

Thanks
 

FFFFFF

Full Member level 1
Joined
Jul 22, 2002
Messages
96
Helped
6
Reputation
12
Reaction score
1
Trophy points
1,288
Location
LUNAPARK
Activity points
630
orcad capture, plcc

you are sure a newbie

for schematic / capture --> library is .OLB file

for layout --> library is .LLB

search google

* orcad capture tutorial

* orcad layout tutorial

* ...

also search OrCAD infos in edaboard this board !!!

exemple : https://www.edaboard.com/ftopic289199.html


for a new project

1 - schematic / capture ( if you have not all symbols create new )

2 - verify

3 - create Netlist for Layout ( if you not all footprint create new )

4 - start Layout

5 - Route your pcboard / Optimize ...

6 - verify

7 - out gerber files / print final design

ALSO

start capture --> help --> learning capture

start layout --> help --> learning layout


finally look in X:\ORCAD\OrCAD_XX\doc

exist all book in pdf > 10 000 pages !!



FFFFFF
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top