The LPC1756 is a Cortex-M3 microcontroller for embedded applications featuring a high level of integration and low power consumption at frequencies of 100 MHz. Features include 256 kB of flash memory, 32 kB of data memory, USB Device/Host/OTG, 8-channel DMA controller, 4 UARTs, 2 CAN channels, 2 SSP, 1 SPI, 2 I2C, I2S, 8-channel 12-bit ADC, DAC, motor control PWM, Quadrature Encoder interface, 4 general purpose timers, 6-output general purpose PWM, ultra-low power Real-Time Clock with separate battery supply, and up to 52 general purpose I/O pins.
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## Features
* ARM Cortex-M3 processor, running at frequencies of up to 100 MHz
* ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC)
* Up to 256 kB on-chip flash programming memory
* Up to 32 kB of SRAM
* In-System Programming (ISP) and In-Application Programming (IAP)
* Eight channel General Purpose DMA controller (GPDMA)
* Multilayer AHB matrix interconnect provides a separate bus for each AHB master
* Split APB bus allows high throughput with few stalls between the CPU and DMA
* USB 2.0 full-speed device/Host/OTG controller with dedicated DMA controller
* Four UARTs with fractional baud rate generation
* CAN 2.0B controller with two channels
* SPI controller with synchronous, serial, full duplex communication
* Two SSP controllers with FIFO and multi-protocol capabilities
* Two I2C-bus interfaces supporting fast mode with a data rate of 400 kbit/s
* I2S (Inter-IC Sound) interface for digital audio input or output
* 52 General Purpose I/O (GPIO) pins with configurable pull-up/down resistors
* 12-bit Analog-to-Digital Converter (ADC) with conversion rates up to 200 kHz
* 10-bit Digital-to-Analog Converter (DAC)
* Four general purpose timers/counters
* One motor control PWM with support for three-phase motor control
* Quadrature encoder interface that can monitor one external quadrature encoder
* One standard PWM/timer block with external count input
* Real-Time Clock (RTC)
* WatchDog Timer (WDT)
* ARM Cortex-M3 system tick timer, including an external clock input option
* Standard JTAG test/debug interface. Boundary scan Description Language (BSDL) is not available for this device
* Integrated PMU (Power Management Unit)
* Four reduced power modes
* Single 3.3 V power supply (2.4 V to 3.6 V)
* One external interrupt input configurable as edge/level sensitive
* Non-maskable Interrupt (NMI) input
* Wakeup Interrupt Controller (WIC)
* Processor wake-up from Power-down mode via any interrupt
* Brownout detect with separate threshold for interrupt and forced reset
* Power-On Reset (POR)
* Crystal oscillator with an operating range of 1 MHz to 25 MHz
