LPC11C22FBD48/301,151 NXP Semiconductors, LPC11C22FBD48/301,151 Datasheet - Page 23
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LPC11C22FBD48/301,151
Manufacturer Part Number
LPC11C22FBD48/301,151
Description
Microcontrollers (MCU) CAN Transceiver MCU 16K Flash
Manufacturer
NXP Semiconductors
Datasheet
1.LPC11C22FBD48301151.pdf
(62 pages)
Specifications of LPC11C22FBD48/301,151
Processor Series
LPC11Cx2
Core
ARM Cortex-M0
Data Bus Width
32 bit
Program Memory Type
Flash
Program Memory Size
16 KB
Data Ram Size
8 KB
Interface Type
CAN, I2C, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
36
Number Of Timers
4
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
OM13012,598
Minimum Operating Temperature
- 40 C
Lead Free Status / Rohs Status
Details
Other names
935294284151
NXP Semiconductors
LPC11CX2_CX4
Product data sheet
Fig 5.
watchdog oscillator
system oscillator
IRC oscillator
IRC oscillator
LPC11Cx2/Cx4 clock generation block diagram
(system PLL clock select)
7.16.1.1 Internal RC oscillator
7.16.1.2 System oscillator
SYSPLLCLKSEL
The IRC may be used as the clock source for the WDT, and/or as the clock that drives the
PLL and subsequently the CPU. The nominal IRC frequency is 12 MHz. The IRC is
trimmed to 1 % accuracy over the entire voltage and temperature range.
Upon power-up or any chip reset, the LPC11Cx2/Cx4 use the IRC as the clock source.
Software may later switch to one of the other available clock sources.
The system oscillator can be used as the clock source for the CPU, with or without using
the PLL.
The system oscillator operates at frequencies of 1 MHz to 25 MHz. This frequency can be
boosted to a higher frequency, up to the maximum CPU operating frequency, by the
system PLL.
SYSTEM PLL
(main clock select)
MAINCLKSEL
All information provided in this document is subject to legal disclaimers.
main clock
Rev. 3 — 27 June 2011
watchdog oscillator
watchdog oscillator
system oscillator
SYSTEM CLOCK
IRC oscillator
IRC oscillator
DIVIDER
(WDT clock update enable)
(CLKOUT update enable)
CLKOUTUEN
WDTUEN
system clock
32-bit ARM Cortex-M0 microcontroller
SYSAHBCLKCTRL[1:18]
(AHB clock enable)
CLKOUT PIN CLOCK
UART PERIPHERAL
LPC11Cx2/Cx4
SPI0 PERIPHERAL
SPI1 PERIPHERAL
CLOCK DIVIDER
CLOCK DIVIDER
CLOCK DIVIDER
18
WDT CLOCK
DIVIDER
DIVIDER
© NXP B.V. 2011. All rights reserved.
AHB clocks 1 to 18
(memories
and peripherals)
AHB clock 0
(system)
SPI0
UART
SPI1
WDT
CLKOUT pin
002aae514
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