[PCB_FORUM] Re: Swappable pins within and between resistor packs

Jim,

Below is the device file we use for the
same type of resistor pack.
It looks a little funny because we had +5v and +3v packs on the same board and 
didn't want to intermix the resistors.

This device file will allow swapping between
the resistors in the same pack and resistors in other packs of the same type. 

Hope this helps.

dave


(DEVICE FILE: RP_8C_IND_8P2K_3P3V)

PACKAGE CAY17_10PIN
CLASS DISCRETE
PINCOUNT 10

PINORDER RP_8C_IND_8P2K_3P3V R
PINUSE RP_8C_IND_8P2K_3P3V BI
FUNCTION G1 RP_8C_IND_8P2K_3P3V 1
FUNCTION G2 RP_8C_IND_8P2K_3P3V 2
FUNCTION G3 RP_8C_IND_8P2K_3P3V 3
FUNCTION G4 RP_8C_IND_8P2K_3P3V 4
FUNCTION G5 RP_8C_IND_8P2K_3P3V 6
FUNCTION G6 RP_8C_IND_8P2K_3P3V 7
FUNCTION G7 RP_8C_IND_8P2K_3P3V 8
FUNCTION G8 RP_8C_IND_8P2K_3P3V 9

POWER '+3.3V' ; 5 10

PACKAGEPROP VALUE '8.2K'
PACKAGEPROP PART_NUMBER 'RN-XXX'

END





Jim Wages wrote:


Allegro 15.7 with Orcad input;
Does anyone have the device file line statement(s) or Orcad directive/property that allow pins to be swappable within and between resistor packs?
8 pin resistor package. Pins 1 & 8 are power or ground. The remaining 6 pins are individual resistors pulled up or down to one of the two pwr/gnd pins I have several of these packages terminating a memory circuit.
Does anyone have the Orcad entry or the syntax to change the pstchip.dat file, that I can later back-annotate to the schematic that will allow me to swap pins within the package and/or swap individual pins between packages?
I used to perform this task quite easily, but do not have one of the designs which this was performed upon. 

Thank you in advance.


Jim Wages

SR PCB Layout Designer

Raleigh, NC



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Dave Seymour, CID+
Catapult Communications Inc.
800 Perimeter Park Dr, Suite A
Morrisville, NC 27560

Direct: (919)653-4249
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Fax: (919)653-4297

Dave.seymour@xxxxxxxxxxxx

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