lpc11u12 NXP Semiconductors, lpc11u12 Datasheet - Page 23
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lpc11u12
Manufacturer Part Number
lpc11u12
Description
32-bit Arm Cortex-m0 Microcontroller; Up To 32 Kb Flash; 6 Kb Sram; Usb Device; Usart
Manufacturer
NXP Semiconductors
Datasheet
1.LPC11U12.pdf
(69 pages)
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NXP Semiconductors
LPC11U1X
Product data sheet
7.16.1 Integrated oscillators
7.16 Clocking and power control
The LPC11U1x include three independent oscillators. These are the system oscillator, the
Internal RC oscillator (IRC), and the watchdog oscillator. Each oscillator can be used for
more than one purpose as required in a particular application.
Following reset, the LPC11U1x will operate from the internal RC oscillator until switched
by software. This allows systems to operate without any external crystal and the
bootloader code to operate at a known frequency.
See
Figure 6
for an overview of the LPC11U1x clock generation.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 11 January 2012
32-bit ARM Cortex-M0 microcontroller
LPC11U1x
© NXP B.V. 2012. All rights reserved.
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