LPC86X datasheet(79/99 Pages) NXP

Part #	LPC86X

Description	32-bit Arm® Cortex®-M0 microcontroller; up to 64 KB flash and 8 KB SRAM; 12-bit ADC; Comparator; FlexTimers

PDF	99 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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79 / 99 page

LPC86x

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Product data sheet

Rev.3 — 28 April 2023

79 of 97

NXP Semiconductors

LPC86x

32-bit Arm Cortex-M0+ microcontroller

14. Application information

14.1 Start-up behavior

Figure 34 shows the start-up timing after reset. The FRO 24 MHz oscillator provides the

default clock at Reset and provides a clean system clock shortly after the supply pins

reach operating voltage.

Fig 34. Start-up timing

Table 35.

Typical start-up timing parameters

Parameter

Description

Value

FRO start time

 10 s

Internal reset de-asserted

s

Boot time

s

aaa-027486

valid threshold

= 1.8 V

processor status

VDD

FRO status

internal reset

GND

boot time

user code

boot code

execution

finishes;

user code starts

starts

supply ramp-up

time

tb μs

ta μs

tc μs

LPC86X Datasheet(PDF) 79 Page - NXP Semiconductors

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