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    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 combine 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 pct 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 kB, 16 kB, and 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.


    • Enhancements brought by LPC213x/01 devices
      • Fast GPIO ports enable port pin toggling up to 3.5 times faster than the original LPC213x. They also allow for a port pin to be read at any time regardless of its function.
      • Dedicated result registers for ADC(s) reduce interrupt overhead.
      • Additional BOD control enables further reduction of power consumption.
    • Key features common for LPC213x and LPC213x/01
      • 16/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 or HVQFN 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 Programming/In-Application Programming (ISP/IAP) via on-chip bootloader software. Single flash sector or full chip erase in 400 ms and programming of 256 B in 1 ms.
      • One (LPC2131/32) or two (LPC2134/36/38) 8-channel 10-bit ADCs provide a total of up to 16 analog inputs, with conversion times as low as 2.44 us per channel.
      • Single 10-bit DAC provides variable analog output (LPC2132/34/36/38).
      • 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.
      • Vectored interrupt controller with configurable priorities and vector addresses.
      • Up to forty-seven 5 V tolerant general purpose I/O pins in tiny LQFP64 or HVQFN package
      • Up to nine edge or level sensitive external interrupt pins available.
      • 60 MHz maximum CPU clock available from programmable on-chip PLL with settling time of 100 us.
      • Power saving modes include Idle and Power-down.
      • Processor wake-up from Power-down mode via external interrupt or BOD.
      • Single power supply chip with POR and BOD circuits:
        • CPU operating voltage range of 3.0 V to 3.6 V (3.3 V +- 10 pct) with 5 V tolerant I/O pads.