LPC2468FBD208 NXP Semiconductors, LPC2468FBD208 Datasheet - Page 72

• Manufacturer Part Number: LPC2468FBD208
• Description: IC, 32BIT MCU, ARM7, 72MHZ, LQFP-208
• Manufacturer: NXP Semiconductors

Specifications of LPC2468FBD208

• Controller Family/series: (ARM7)
• No. Of I/o's: 160
• Ram Memory Size: 98KB
• Cpu Speed: 72MHz
• No. Of Timers: 4
• No. Of Pwm Channels: 12
• Core Size: 32 Bit
• Program Memory Size: 512KB
• Rohs Compliant: Yes
• Oscillator Type: External, Internal
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
LPC2468
Product data sheet
Fig 26. LPC2468 USB OTG port configuration: USB port 1 host, USB port 2 host
14.2 Crystal oscillator XTAL input and component selection
LPC24XX
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
slave mode, a minimum of 200 mV (RMS) is needed.
Fig 27. Slave mode operation of the on-chip oscillator
i
= 100 pF. To limit the input voltage to the specified range, choose an additional
USB_UP_LED1
USB_D+1
USB_D−1
USB_PWRD1
USB_OVRCR1
USB_PPWR1
USB_PPWR2
USB_OVRCR2
USB_PWRD2
USB_UP_LED2
USB_D+2
USB_D−2
All information provided in this document is subject to legal disclaimers.
33 Ω
33 Ω
33 Ω
33 Ω
g
5 V
Rev. 5 — 15 October 2010
which attenuates the input voltage by a factor C
15 kΩ
15 kΩ
ENA
ENB
IN
15 kΩ
15 kΩ
V
DD
LM3526-L
V
DD
XTAL1
C i
100 pF
LPC2xxx
FLAGA
OUTA
OUTB
FLAGB
002aae718
C g
V
V
SSCORE
SSCORE
Single-chip 16-bit/32-bit micro
V
V
V
V
DD
DD
SSIO,
SSIO,
V
V
BUS
BUS
D+
D−
D+
D−
002aad596
USB-A
connector
USB-A
connector
LPC2468
i
© NXP B.V. 2010. All rights reserved.
/ (C
i
+ C
g
). In
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