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EAGLE User Support (English) How do you add a decoupling cap to a 32KB RAM?
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  • decoupling capacitor
  • ic without power pads
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How do you add a decoupling cap to a 32KB RAM?

prefontdon
prefontdon over 7 years ago

Eagle v9.1.3 Standard

IC  CY62256NLL-70PXCCY62256NLL-70PXC

Library: memory-sram  Static RAMS (urn:adsk.eagle:library:278)

Sub-library: CY62256LL-?*

Item: CY62256LL-PXC   DIL28-6

 

The Symbol shows one object for the chip and two other devices that are VCC and GND. They seem to be categorized as P in the Symbol drawing, obviously for Power.

 

Here's the question: how do I put a decoupling cap on schematic for the IC if the power pins only show on the board?

 

Thanks,

 

Don

 

P.S.  Is there an easier/faster way to add antispike/decoupling caps to ICs in the schematic? Has anyone done a video on this?

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Top Replies

  • Fred27
    Fred27 over 7 years ago +2
    I assume you place the capacitor between the two power pins (14 and 28) on the schematic. Have you tried this? That should then show up to be routed on the board.
  • genebren
    genebren over 7 years ago +1 verified
    Don, After placing the RAM device on the schematic, move to the side tool bar and select 'Invoke' and left click on the RAM device. This will pop-up a menu that will allow you to select and place the …
  • prefontdon
    prefontdon over 7 years ago +1
    Much appreciated, Gene!
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  • Fred27
    0 Fred27 over 7 years ago

    I assume you place the capacitor between the two power pins (14 and 28) on the schematic. Have you tried this? That should then show up to be routed on the board.

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  • Fred27
    0 Fred27 over 7 years ago

    I assume you place the capacitor between the two power pins (14 and 28) on the schematic. Have you tried this? That should then show up to be routed on the board.

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