LPC1111FHN33/102'5 NXP Semiconductors, LPC1111FHN33/102'5 Datasheet - Page 20

• Manufacturer Part Number: LPC1111FHN33/102'5
• Description: ARM Microcontrollers - MCU CORTEX-M0 8 KB FL 4 KB SRAM
• Manufacturer: NXP Semiconductors

Specifications of LPC1111FHN33/102'5

• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: LPC1111
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.6 V
• Operating Temperature Range: - 65 C to + 150 C
• Mounting Style: SMD/SMT
• Interface Type: I2C, SPI, UART
• Number Of Programmable I/os: 42
• Number Of Timers: 4
• Program Memory Type: Flash
• Factory Pack Quantity: 4000

NXP Semiconductors
3.4 Clock generation
UM10398
User manual
Table 6.
See
The LPC111x/LPC11Cxx 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 LPC111x/LPC11Cxx 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.
The SYSAHBCLKCTRL register gates the system clock to the various peripherals and
memories. UART, the WDT, and SPI0/1 have individual clock dividers to derive peripheral
clocks from the main clock.
The main clock and the clock outputs from the IRC, the system oscillator, and the
watchdog oscillator can be observed directly on the CLKOUT pin.
For details on power control see
Pin name
CLKOUT
PIO0_0 to PIO0_11
PIO1_0
Figure 8
Pin summary
for an overview of the LPC111x/LPC11Cxx Clock Generation Unit (CGU).
All information provided in this document is subject to legal disclaimers.
Rev. 12 — 24 September 2012
Chapter 3: LPC111x/LPC11Cxx System configuration (SYSCON)
Pin direction
O
I
I
Section
3.9.
Pin description
Clockout pin
Start logic wake-up pins port 0
Start logic wake-up pin port 1
UM10398
© NXP B.V. 2012. All rights reserved.
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