EA-XPR-001 Embedded Artists, EA-XPR-001 Datasheet - Page 50

• Manufacturer Part Number: EA-XPR-001
• Description: BOARD LPCXPRESSO LPC1343
• Manufacturer: Embedded Artists
• Series: LPCXpressor
• Type: MCUr

Specifications of EA-XPR-001

• Contents: Board, Software
• For Use With/related Products: EA-XPR-021, ARM Cortex-M3
• For Use With: EA-XPR-021 - BOARD BASE LPCXPRESSO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
11. Application information
LPC1311_13_42_43
Product data sheet
Fig 26. LPC1342/43 USB interface on a self-powered device
Fig 27. LPC1342/43 USB interface on a bus-powered device
11.1 Suggested USB interface solutions (LPC1342/43 only)
11.2 XTAL input
The input voltage to the on-chip oscillators is limited to 1.8 V. If the oscillator is driven by a
clock in slave mode, it is recommended that the input be coupled through a capacitor with
C
capacitor to ground C
mode, a minimum of 200 mV(RMS) is needed.
i
= 100 pF. To limit the input voltage to the specified range, choose an additional
LPC134x
LPC134x
All information provided in this document is subject to legal disclaimers.
USB_CONNECT
V
USB_VBUS
USB_DP
USB_DM
V
V
USB_VBUS
USB_DP
USB_DM
V
g
DD
SS
DD
SS
Rev. 3 — 10 August 2010
which attenuates the input voltage by a factor C
R S = 33 Ω
R S = 33 Ω
R S = 33 Ω
R S = 33 Ω
R1
1.5 kΩ
R1
1.5 kΩ
soft-connect switch
32-bit ARM Cortex-M3 microcontroller
LPC1311/13/42/43
002aae608
002aae609
USB-B
connector
USB-B
connector
i
/(C
© NXP B.V. 2010. All rights reserved.
i
+ C
g
). In slave
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