National Instruments 371889A-01 SONAR User Manual


 
Placing Components
Multicap 9 User Guide 4-7
Tip Some components, like resistors and capacitors will have
Filter fields at the top of the
Component list, to make part selection faster.
4.4.1.1 Multisection Components
Certain non-virtual parts do not have a one-to-one correspondence with a footprint. Rather,
several circuit components may correspond to a single physical package. An example is a
quad 2-input NAND gate such as the Texas Instruments 7400N. For this example, up to four
components on a schematic diagram may correspond to a single part for the purposes of PCB
layout.
To place a multi-section part, you select the physical part from the component browser.
Immediately prior to placing the component, a section chooser pops up that lists parts that
have free sections, or allows you to start a new part. You must select one of these sections for
placement. Once placed, optimizing facilities are provided to enable multi-section parts to be
efficiently packed into chips, and a spare gate report is available to show sections not used on
multi-section parts in the circuit.
Refer to the following example for details.
Filters