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LPC2921 Datasheet(PDF) 71 Page - NXP Semiconductors

Part # LPC2921
Description  ARM9 microcontroller with CAN, LIN, and USB
PDF  84 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

LPC2921 Datasheet(HTML) 71 Page - NXP Semiconductors

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LPC2921_23_25_3
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 14 April 2010
71 of 84
NXP Semiconductors
LPC2921/2923/2925
ARM9 microcontroller with CAN, LIN, and USB
10.2 Suggested USB interface solutions
Fig 26. Core operating frequency versus core voltage for different temperatures
core voltage (V)
1.65
1.95
1.85
1.75
002aae193
125
115
135
145
core
frequency
(MHz)
105
25
°C
45
°C
65
°C
85
°C
Fig 27. LPC2921/2923/2925 USB interface on a self-powered device
LPC29xx
USB-B
connector
USB_D+
SoftConnect switch
USB_D
−
USB_VBUS
VSS(IO)
VDD(IO)
R1
1.5 k
Ω
RS = 33 Ω
002aae149
RS = 33 Ω
USB_UP_LED
USB_CONNECT



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