The LPC2101/02/03 microcontrollers are based on a 16-bit/32-bit ARM7TDMI-S CPU with real-time emulation that combines the microcontroller with 8 kB, 16 kB or 32 kB of embedded high-speed flash memory. A 128-bit wide memory interface and a unique accelerator architecture enable 32-bit code execution at the maximum clock rate. For critical performance in interrupt service routines and DSP algorithms, this increases performance up to 30 pct over Thumb mode. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30 pct with minimal performance penalty. Due to their tiny size and low power consumption, the LPC2101/02/03 are ideal for applications where miniaturization is a key requirement. A blend of serial communications interfaces ranging from multiple UARTs, SPI to SSP and two I²C-buses, combined with on-chip SRAM of 2 kB/4 kB/8 kB, make these devices very well suited for communication gateways and protocol converters. The superior performance also makes these devices suitable for use as math coprocessors. Various 32-bit and 16-bit timers, an improved 10-bit ADC, PWM features through output match on all timers, and 32 fast GPIO lines with up to nine edge or level sensitive external interrupt pins make these microcontrollers particularly suitable for industrial control and medical systems.
Enhanced features are available in parts LPC2101/02/03labelled Revision A and higher:
Deep power-down mode with option to retain SRAM memory and/or RTC.
Three levels of flash Code Read Protection (CRP) implemented.
16-bit/32-bit ARM7TDMI-S microcontroller in tiny LQFP48 and HVQFN48packages.
2 kB/4 kB/8 kB of on-chip static RAM and 8 kB/16 kB/32 kB of on-chip flashprogram memory. 128-bit wide interface/accelerator enables high-speed 70 MHzoperation.
ISP/IAP via on-chip bootloader software. Single flash sector or full chip erasein 100 ms and programming of 256 bytes in 1 ms.
EmbeddedICE-RT offers real-time debugging with the on-chip RealMonitorsoftware.
The 10-bit ADC provides eight analog inputs, with conversion times as low as2.44 us per channel and dedicated result registers to minimize interruptoverhead.
Two 32-bit timers/external event counters with combined seven capture and sevencompare channels.
Two 16-bit timers/external event counters with combined three capture and sevencompare channels.
Low power Real-Time Clock (RTC) with independent power and dedicated 32 kHzclock input.
Multiple serial interfaces including two UARTs (16C550), two Fast I²C-buses (400kbit/s), SPI and SSP with buffering and variable data lengthcapabilities.
Vectored interrupt controller with configurable priorities and vectoraddresses.
Up to thirty-two, 5 V tolerant fast general purpose I/O pins.
Up to 13 edge or level sensitive external interrupt pins available.
70 MHz maximum CPU clock available from programmable on-chip PLL with a possibleinput frequency of 10 MHz to 25 MHz and a settling time of 100 us.
On-chip integrated oscillator operates with an external crystal in the rangefrom 1 MHz to 25 MHz.
Power saving modes include Idle mode, Power-down mode with RTC active, andPower-down mode.
Individual enable/disable of peripheral functions as well as peripheral clockscaling for additional power optimization.
Processor wake-up from Power-down and Deep power-down (Revision A and higher)mode via external interrupt or RTC.