LPC1777 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
LPC1777
NXP Semiconductors.
'LPC1777' PDF : 120 Pages View PDF
NXP Semiconductors
LPC178x/7x
32-bit ARM Cortex-M3 microcontroller
VDD
USB_UP_LED1
USB_D+1 33 Ω
USB_D-1 33 Ω
15 kΩ 15 kΩ
USB_PWRD1
USB_OVRCR1
USB_PPWR1
LPC178x/7x
USB_UP_LED2
ENA
5V
IN
LM3526-L
FLAGA
OUTA
VDD
VDD
USB_CONNECT2
USB_D+2
33 Ω
USB_D-2
33 Ω
VBUS
VSSIO,
VSSCORE
D+
D-
VDD
VBUS
VSSIO,
VSSCORE
D+
D-
VBUS
USB-A
connector
USB-B
connector
Fig 35. USB device port configuration: port 1 host and port 2 device
002aag509
14.2 Crystal oscillator XTAL input and component selection
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
Ci = 100 pF. To limit the input voltage to the specified range, choose an additional
capacitor to ground Cg which attenuates the input voltage by a factor Ci/(Ci + Cg). In slave
mode, a minimum of 200 mV(RMS) is needed.
LPC178X_7X
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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