LPC11A14FBD48/301, NXP Semiconductors, LPC11A14FBD48/301, Datasheet - Page 34

• Manufacturer Part Number: LPC11A14FBD48/301,
• Description: ARM Microcontrollers - MCU CortexM0 32bit 32KB
• Manufacturer: NXP Semiconductors

Specifications of LPC11A14FBD48/301,

• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: LPC11A
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.6 V to 3.6 V
• Package / Case: LQFP-48
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 250

NXP Semiconductors
LPC11AXX
Product data sheet
7.22.1 Crystal and internal oscillators
7.22 Clocking and power control
The LPC11Axx include four independent oscillators.
Each oscillator, except the WDOsc, can be used for more than one purpose as required in
a particular application.
Following reset, the LPC11Axx will operate from the IRC until switched by software. This
allows systems to operate without any external crystal and the bootloader code to operate
at a known frequency.
See
1. The crystal oscillator (SysOsc) operating at frequencies between 1 MHz and 25 MHz.
2. The internal RC Oscillator (IRC) with a fixed frequency of 12 MHz, trimmed to 1%
3. The internal low-power, Low-Frequency Oscillator (LFOsc) with a programmable
4. The dedicated Watchdog Oscillator (WDOsc) with a programmable nominal
•
•
•
•
Flag to indicate watchdog reset.
Programmable 24-bit timer with internal prescaler.
Selectable time period from (T
multiples of T
The Watchdog Clock (WDCLK) source can be selected from the internal RC oscillator
(IRC), or the dedicated watchdog oscillator (WDOsc). This gives a wide range of
potential timing choices of watchdog operation under different power conditions.
accuracy.
nominal frequency between 9.4 kHz and 2.3 MHz with 40% accuracy.
frequency between 9.4 kHz and 2.3 MHz with 40% accuracy.
Figure 10
for an overview of the LPC11Axx clock generation.
All information provided in this document is subject to legal disclaimers.
cy(WDCLK)
Rev. 4 — 30 October 2012
 4.
cy(WDCLK)
 256  4) to (T
32-bit ARM Cortex-M0 microcontroller
cy(WDCLK)
LPC11Axx
 2
© NXP B.V. 2012. All rights reserved.
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 4) in
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