Datasheet

LPC11U3X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 2.2 — 11 March 2014 2 of 77
NXP Semiconductors
LPC11U3x
32-bit ARM Cortex-M0 microcontroller
 16 kB boot ROM.
 In-System Programming (ISP) and In-Application Programming (IAP) via on-chip
bootloader software.
 ROM-based USB drivers. Flash updates via USB supported.
 ROM-based 32-bit integer division routines.
 Debug options:
 Standard JTAG (Joint Test Action Group) test interface for BSDL (Boundary Scan
Description Language).
 Serial Wire Debug.
 Digital peripherals:
 Up to 54 General Purpose I/O (GPIO) pins with configurable pull-up/pull-down
resistors, repeater mode, and open-drain mode.
 Up to 8 GPIO pins can be selected as edge and level sensitive interrupt sources.
 Two GPIO grouped interrupt modules enable an interrupt based on a
programmable pattern of input states of a group of GPIO pins.
 High-current source output driver (20 mA) on one pin.
 High-current sink driver (20 mA) on true open-drain pins.
 Four general purpose counter/timers with a total of up to 8 capture inputs and 13
match outputs.
 Programmable Windowed WatchDog Timer (WWDT) with a dedicated, internal
low-power WatchDog Oscillator (WDO).
 Analog peripherals:
 10-bit ADC with input multiplexing among eight pins.
 Serial interfaces:
 USB 2.0 full-speed device controller.
 USART with fractional baud rate generation, internal FIFO, a full modem control
handshake interface, and support for RS-485/9-bit mode and synchronous mode.
USART supports an asynchronous smart card interface (ISO 7816-3).
 Two SSP controllers with FIFO and multi-protocol capabilities.
 I
2
C-bus interface supporting the full I
2
C-bus specification and Fast-mode Plus with
a data rate of up to 1 Mbit/s with multiple address recognition and monitor mode.
 I/O Handler for hardware emulation of serial interfaces and DMA; supported through
software libraries. (LPC11U37HFBD64/401 only.)
 Clock generation:
 Crystal Oscillator with an operating range of 1 MHz to 25 MHz (system oscillator).
 12 MHz high-frequency Internal RC oscillator (IRC) that can optionally be used as
a system clock.
 Internal low-power, low-frequency WatchDog Oscillator (WDO) with programmable
frequency output.
 PLL allows CPU operation up to the maximum CPU rate with the system oscillator
or the IRC as clock sources.
 A second, dedicated PLL is provided for USB.
 Clock output function with divider that can reflect the crystal oscillator, the main
clock, the IRC, or the watchdog oscillator.
 Power control: