Vdd and Vss pins

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Vdd and Vss pins

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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by dmasyukov on Thu May 02 10:23:28 MST 2013
I am working with LPC1342. Should I be connecting both Vdd pins 8 and 44, and both Vss on 5 and 41? Or can I interface to just one of each?

I am etching a board and can't really connect all of pins on 1-sided pcb.
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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by R2D2 on Thu May 02 16:12:56 MST 2013

Quote: dmasyukov
Thank you guys. Decoupling means putting a capacitor between vdd and vss?



Yes, 100nF /402.
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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by dmasyukov on Thu May 02 15:43:40 MST 2013
Thank you guys. Decoupling means putting a capacitor between vdd and vss?
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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by leon_heller on Thu May 02 13:51:23 MST 2013
Also, both pairs of pins should be decoupled close to the chip.
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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by R2D2 on Thu May 02 10:42:25 MST 2013

Quote: dmasyukov
I am working with LPC1342. Should I be connecting both Vdd pins 8 and 44, and both Vss on 5 and 41?



Yes and Yes.


Quote: dmasyukov
Or can I interface to  just one of each?


No.

Quote: dmasyukov

I am etching a board and can't really connect all of pins on 1-sided pcb.


Connect VDD under your LPC.
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