LPC11CX2 datasheet(2/62 Pages) NXP

2 / 62 page

LPC11CX2_CX4

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Product data sheet

Rev. 3 — 27 June 2011

2 of 62

NXP Semiconductors

LPC11Cx2/Cx4

32-bit ARM Cortex-M0 microcontroller

 Programmable WatchDog Timer (WDT).

 Analog peripherals:

 10-bit ADC with input multiplexing among 8 pins.

 Serial interfaces:

 UART with fractional baud rate generation, internal FIFO, and RS-485 support.

 Two SPI controllers with SSP features and with FIFO and multi-protocol

capabilities.

 I2C-bus interface supporting full I2C-bus specification and Fast-mode Plus with a

data rate of 1 Mbit/s with multiple address recognition and monitor mode.

 C_CAN controller. On-chip C_CAN and CANopen drivers included.

 On-chip, high-speed CAN transceiver (parts LPC11C22/C24 only).

 Clock generation:

 12 MHz internal RC oscillator trimmed to 1 % accuracy that can optionally be used

as a system clock.

 Crystal oscillator with an operating range of 1 MHz to 25 MHz.

 Programmable watchdog oscillator with a frequency range of 7.8 kHz to 1.8 MHz.

 PLL allows CPU operation up to the maximum CPU rate without the need for a

high-frequency crystal. May be run from the system oscillator or the internal RC

oscillator.

 Clock output function with divider that can reflect the system oscillator, IRC, CPU

clock, or the Watchdog clock.

 Power control:

 Integrated PMU (Power Management Unit) to minimize power consumption during

Sleep, Deep-sleep, and Deep power-down modes.

 Three reduced power modes: Sleep, Deep-sleep, and Deep power-down.

 Processor wake-up from Deep-sleep mode via a dedicated start logic using 13 of

the GPIO pins.

 Power-On Reset (POR).

 Brownout detect with four separate thresholds for interrupt and forced reset.

 Unique device serial number for identification.

 Single 3.3 V power supply (1.8 V to 3.6 V).

 Available as 48-pin LQFP package.

Applications

 eMetering

 Industrial and sensor based networks

 Elevator systems

 White goods

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