Datasheet

LPC81XM All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4.3 — 22 April 2014 2 of 76
NXP Semiconductors
LPC81xM
32-bit ARM Cortex-M0+ microcontroller
 State Configurable Timer/PWM (SCTimer/PWM) with input and output functions
(including capture and match) assigned to pins through the switch matrix.
 Multiple-channel multi-rate timer (MRT) for repetitive interrupt generation at up to
four programmable, fixed rates.
 Self Wake-up Timer (WKT) clocked from either the IRC or a low-power,
low-frequency internal oscillator.
 CRC engine.
 Windowed Watchdog timer (WWDT).
 Analog peripherals:
 Comparator with internal and external voltage references with pin functions
assigned or enabled through the switch matrix.
 Serial interfaces:
 Three USART interfaces with pin functions assigned through the switch matrix.
 Two SPI controllers with pin functions assigned through the switch matrix.
 One I
2
C-bus interface with pin functions assigned through the switch matrix.
 Clock generation:
 12 MHz internal RC oscillator trimmed to 1.5 % 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 9.4 kHz to 2.3 MHz.
 10 kHz low-power oscillator for the WKT.
 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, the external clock
input CLKIN, or the internal RC oscillator.
 Clock output function with divider that can reflect the crystal oscillator, the main
clock, the IRC, or the watchdog oscillator.
 Power control:
 Integrated PMU (Power Management Unit) to minimize power consumption.
 Reduced power modes: Sleep mode, Deep-sleep mode, Power-down mode, and
Deep power-down mode.
 Wake-up from Deep-sleep and Power-down modes on activity on USART, SPI, and
I2C peripherals.
 Timer-controlled self wake-up from Deep power-down mode.
 Power-On Reset (POR).
 Brownout detect.
 Unique device serial number for identification.
 Single power supply.
 Operating temperature range 40 °C to 105 °C except for the DIP8 package, which is
available for a temperature range of 40 °C to 85 °C.
 Available as DIP8, TSSOP16, SO20, TSSOP20, and XSON16 package.
3. Applications
 8/16-bit applications  Lighting
 Consumer  Motor control
 Climate control  Fire and security applications