Eachmicrocontrollerisalsoequippedwithuptotwo10-bit

A/Dconvertersanda10-bitD/Aconverter.

Multipleserialcommunicationsinterfacesincreasedesign

flexibility,providelargerbuffersize,anddeliverhigher

processingpower.Therearetwo16C550UARTs,twoFast

capabilitiesforbufferingandvariabledatalength).

Therearetwo32-bittimers(eachwithfourcaptureand

comparechannels),aPWMunitwithsixoutputs,areal-time

clock,andaWatchdogtimer.

Fordebugging,eachdevicesupportsreal-timeemulation

andembeddedtracesupportandhasanintegratedvectored

interruptcontroller(VIC).Also,forcompatibilitywithexisting

tools,eachdeviceusesthestandardARMtest/debugJTAG

interface.

Otherfeaturesinclude45FastI/Opins(5-Vtolerant)with

switchingupto15MHz,andanoperatingtemperaturerange

of-40to85°C.

Third-Party Development Tools

Throughthird-partysuppliers,weofferarangeof

developmenttoolsforourmicrocontrollers.Forthemost

currentlisting,pleasevisitwww.nxp.com/microcontrollers.

Up to 512 KB of

128-bit-wide ISP/IAP Flash

Up to 40 KB of SRAM

Two 32-bit timers

(four capture/

compare channels each)

E-ICE/RT interface and

embedded-trace macrocell

60-MHz, 32-bit ARM7TDMI-S core

with AHB and APB interfaces

Power management, 3.3-V supply,

real-time clock, Watchdog timer, PLL

PWM unit

(six outputs)

USB 2.0 full-speed

(12 Mbps device)

Up to two 10-bit A/D converters

(up to 14 channels each)

Available 10-bit D/A converter

(one channel)

SPI, SSP

45 I/O ports

UART0

UART1

Vectored

interrupt controller

LPC214x block diagram

Type

Memory

Serial interfaces

ADC/DAC options

Package

Flash (KB)

SRAM (KB)

USB 2.0

(12 Mbps)

USB

DMA

UART

SPI/SSP

ADC channels

(10-bit)

DAC channels

(10-bit)

LPC2141

32

8

1

2

2

2

6

LQFP64

LPC2142

64

16

1

2

2

2

6

1

LQFP64

LPC2144

128

16

1

2

2

2

14

1

LQFP64

LPC2146

256

40

1

1

2

2

2

14

1

LQFP64

LPC2148

512

40

1

1

2

2

2

14

1

LQFP64

LPC214x selection guide

www.nxp.com

© 2007 NXP N.V.

All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The

information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and

may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof

does not convey nor imply any license under patent- or other industrial or intellectual property rights.

Date of release: January 2007

Document order number: 9397 750 15816

Printed in the USA