LPC81XM datasheet(2/78 Pages) NXP

2 / 78 page

LPC81XM

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Product data sheet

Rev. 4.6 — 4 April 2018

2 of 78

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 I2C-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.

Applications

 8/16-bit applications

 Lighting

 Consumer

 Motor control

 Climate control

 Fire and security applications

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