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LPC2921 Datasheet(PDF) 71 Page - NXP Semiconductors

Part # LPC2921
Description  ARM9 microcontroller with CAN, LIN, and USB device
PDF  81 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

LPC2921 Datasheet(HTML) 71 Page - NXP Semiconductors

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LPC2921_2923_2925_0
© NXP B.V. 2008. All rights reserved.
Preliminary data sheet
Rev. 00.01 — 24 October 2008
71 of 81
NXP Semiconductors
LPC2921/2923/2925
ARM9 microcontroller with CAN and LIN
10.2 Suggested USB interface solutions
Fig 28. LPC29xx 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 29. LPC2921/2923/2925 USB interface on a self-powered device
LPC29xx
USB-B
connector
USB_D+
USB_CONNECT
soft-connect switch
USB_D
−
USB_VBUS
VSS(IO)
VDD(IO)
R1
1.5 k
Ω
RS = 33 Ω
002aae149
RS = 33 Ω
USB_UP_LED



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