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LPC844 Datasheet(PDF) 97 Page - NXP Semiconductors

Part # LPC844
Description  32-bit Arm® Cortex®-M0 microcontroller;
PDF  97 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

LPC844 Datasheet(HTML) 97 Page - NXP Semiconductors

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NXP Semiconductors
LPC84x
32-bit Arm Cortex-M0+ microcontroller
© NXP Semiconductors N.V. 2018.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 27 February 2018
Document identifier: LPC84x
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
12.3
I/O pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
12.4
WKTCLKIN pin (wake-up clock input) . . . . . . 61
12.5
SCTimer/PWM output timing . . . . . . . . . . . . . 61
12.6
I2C-bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
12.7
SPI interfaces . . . . . . . . . . . . . . . . . . . . . . . . . 64
12.8
USART interface. . . . . . . . . . . . . . . . . . . . . . . 67
12.9
Wake-up process . . . . . . . . . . . . . . . . . . . . . . 68
13
Characteristics of analog peripherals . . . . . . 69
13.1
BOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
13.2
ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
13.2.1
ADC input impedance. . . . . . . . . . . . . . . . . . . 72
13.3
Comparator and internal voltage reference . . 73
13.4
DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
14
Application information. . . . . . . . . . . . . . . . . . 76
14.1
Start-up behavior . . . . . . . . . . . . . . . . . . . . . . 76
14.2
XTAL oscillator . . . . . . . . . . . . . . . . . . . . . . . . 77
14.2.1
XTAL Printed Circuit Board (PCB) design
guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
14.2.2
XTAL input . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
14.3
Connecting power, clocks, and debug
functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
14.4
I/O power consumption. . . . . . . . . . . . . . . . . . 80
14.5
Termination of unused pins. . . . . . . . . . . . . . . 80
14.6
Pin states in different power modes . . . . . . . . 81
15
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 82
16
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
17
Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 92
18
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
19
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 93
20
Legal information. . . . . . . . . . . . . . . . . . . . . . . 94
20.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 94
20.2
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
20.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
20.4
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 95
21
Contact information. . . . . . . . . . . . . . . . . . . . . 95
22
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96



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