LPC11U23FBD48/301, NXP Semiconductors, LPC11U23FBD48/301, Datasheet - Page 22

• Manufacturer Part Number: LPC11U23FBD48/301,
• Description: ARM Microcontrollers - MCU CortexM0 32bit 24KB with USB
• Manufacturer: NXP Semiconductors

Specifications of LPC11U23FBD48/301,

• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: LPC11U2x
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 24 KB
• Data Ram Size: 6 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-48
• Mounting Style: SMD/SMT
• Data Rom Size: 1 KB
• Number Of Programmable I/os: 40
• Number Of Timers: 4
• Factory Pack Quantity: 250

NXP Semiconductors
LPC11U2X
Product data sheet
7.17.1 Integrated oscillators
7.17 Clocking and power control
The LPC11U2x include three independent oscillators: 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 LPC11U2x operates from the internal RC oscillator until software
switches to a different clock source. The IRC allows the system to operate without any
external crystal and the bootloader code to operate at a known frequency.
See
Figure 7
for an overview of the LPC11U2x clock generation.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 January 2012
32-bit ARM Cortex-M0 microcontroller
LPC11U2x
© NXP B.V. 2012. All rights reserved.
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