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1.1 Introduction
The LPC2131/32/34/36/38 microcontrollers are based on a 16/32 bit ARM7TDMI-S™
CPU with real-time emulation and embedded trace support, that combines the
microcontroller with 32 kB, 64 kB, 128 kB, 256 kB and 512 kB of embedded high speed
Flash memory. A 128-bit wide memory interface and a unique accelerator architecture
enable 32-bit code execution at maximum clock rate. For critical code size applications,
the alternative 16-bit Thumb® Mode reduces code by more than 30 % with minimal
performance penalty.
Due to their tiny size and low power consumption, these microcontrollers are ideal for
applications where miniaturization is a key requirement, such as access control and
point-of-sale. With a wide range of serial communications interfaces and on-chip SRAM
options of 8/16/32 kB, they are very well suited for communication gateways and protocol
converters, soft modems, voice recognition and low end imaging, providing both large
buffer size and high processing power. Various 32-bit timers, single or dual 10-bit
8 channel ADC(s), 10-bit DAC, PWM channels and 47 GPIO lines with up to nine edge or
level sensitive external interrupt pins make these microcontrollers particularly suitable for
industrial control and medical systems.
1.2 Features
User manual
UM10120
Chapter 1: General information
Rev. 01 — 24 June 2005
•
16/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package
•
8/16/32 kB of on-chip static RAM and 32/64/128/256/512 kB of on-chip Flash program
memory. 128 bit wide interface/accelerator enables high speed 60 MHz operation.
•
In-System/In-Application Programming (ISP/IAP) via on-chip boot-loader software.
Single Flash sector or full chip erase in 400 ms and 256 bytes programming in 1 ms.
•
®
EmbeddedICE
and Embedded Trace interfaces offer real-time debugging with the
on-chip RealMonitor™ software and high speed tracing of instruction execution.
•
One (LPC2131/2) or two (LPC2134/6/8) 8 channel 10-bit A/D converters provide(s) a
total of up to 16 analog inputs, with conversion times as low as 2.44 µs per channel.
•
Single 10-bit D/A converter provides variable analog output. (LPC2132/4/6/8 only).
•
Two 32-bit timers/external event counters (with four capture and four compare
channels each), PWM unit (six outputs) and watchdog.
•
Low power Real-time clock with independent power and dedicated 32 kHz clock input.
•
Multiple serial interfaces including two UARTs (16C550), two Fast I
SPI™ and SSP with buffering and variable data length capabilities.
•
Vectored interrupt controller with configurable priorities and vector addresses.
Rev. 01 — 24 June 2005
User manual
2
C (400 kbit/s),
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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