LPC81XM datasheet(61/78 Pages) NXP

Part #	LPC81xM

Description	32-bit ARM짰 Cortex짰-M0 microcontroller

PDF	78 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

61 / 78 page

LPC81XM

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 4.6 — 4 April 2018

61 of 78

NXP Semiconductors

LPC81xM

32-bit ARM Cortex-M0+ microcontroller

14.3 XTAL Printed Circuit Board (PCB) layout guidelines

The crystal should be connected on the PCB as close as possible to the oscillator input

and output pins of the chip. Take care that the load capacitors Cx1,Cx2, and Cx3 in case of

third overtone crystal usage have a common ground plane. The external components

must also be connected to the ground plain. Loops must be made as small as possible in

order to keep the noise coupled in via the PCB as small as possible. Also parasitics

should stay as small as possible. Values of Cx1 and Cx2 should be chosen smaller

accordingly to the increase in parasitics of the PCB layout.

LPC81xM Datasheet(PDF) 61 Page - NXP Semiconductors