General description
The LPC15xx are ARM Cortex-M3 based microcontrollers for embedded applications featuring a rich peripheral set with very low power consumption. The ARM Cortex-M3 is a next generation core that offers system enhancements such as enhanced debug features and a higher level of support block integration.
The LPC15xx operate at CPU frequencies of up to 72 MHz. The ARM Cortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture with separate local instruction and data buses as well as a third bus for peripherals. The ARM Cortex-M3 CPU also includes an internal prefetch unit that supports speculative branching.
The LPC15xx includes up to 256 kB of flash memory, 32 kB of ROM, a 4 kB EEPROM, and up to 36 kB of SRAM. The peripheral complement includes one full-speed USB 2.0 device, two SPI interfaces, three USARTs, one Fast-mode Plus I2C-bus interface, one C_CAN module, PWM/timer subsystem with four configurable, multi-purpose State Configurable Timers (SCTimer/PWM) with input pre-processing unit, a Real-time clock module with independent power supply and a dedicated oscillator, two 12-channel/12-bit, 2 Msamples/s ADCs, one 12-bit, 500 kSamples/s DAC, four voltage comparators with internal voltage reference, and a temperature sensor. A DMA engine can service most peripherals.
For additional documentation related to the LPC15xx parts, see Section 17 “References”.

Features and benefits
■ System:
   ◆ ARM Cortex-M3 processor (version r2p1), running at frequencies of up to 72 MHz.
   ◆ ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC).
   ◆ System tick timer.
   ◆ Serial Wire Debug (SWD) with four breakpoints and two watchpoints.
   ◆ Single-cycle multiplier supported.
   ◆ Memory Protection Unit (MPU) included.
■ Memory:
   ◆ Up to 256 kB on-chip flash programming memory with 256 Byte page write and erase.
   ◆ Up to 36 kB SRAM.
   ◆ 4 kB EEPROM.
■ ROM API support:
   ◆ Boot loader with boot options from flash or external source via USART, C_CAN, or USB
   ◆ USB drivers
   ◆ ADC drivers
   ◆ SPI drivers
   ◆ USART drivers
   ◆ I2C drivers
   ◆ Power profiles and power mode configuration with low-power mode configuration option
   ◆ DMA drivers
   ◆ C_CAN drivers
   ◆ Flash In-Application Programming (IAP) and In-System Programming (ISP).
■ Digital peripherals:
   ◆ Simple DMA engine with 18 channels and 20 programmable input triggers.
   ◆ High-speed GPIO interface with up to 76 General-Purpose I/O (GPIO) pins
      with configurable pull-up/pull-down resistors, open-drain mode,
      input inverter, and programmable digital glitch filter.
   ◆ GPIO interrupt generation capability with boolean pattern-matching
      feature on eight external inputs.
   ◆ Two GPIO grouped port interrupts.
   ◆ Switch matrix for flexible configuration of each I/O pin function.
   ◆ CRC engine.
   ◆ Quadrature Encoder Interface (QEI).
■ Configurable PWM/timer/motor control subsystem:
◆ Up to four 32-bit counter/timers or up to eight 16-bit counter/timers
   or combinations of 16-bit and 32-bit timers.
◆ Up to 28 match outputs and 22 configurable capture inputs with input multiplexer.
◆ Up to 28 PWM outputs total.
◆ Dither engine for improved average resolution of pulse edges.
◆ Four State Configurable Timers (SCTimers) for highly flexible,
   event-driven timing and PWM applications.
◆ SCT Input Pre-processor Unit (SCTIPU) for processing timer inputs
   and immediate handling of abort situations.
◆ Integrated with ADC threshold compare interrupts, temperature sensor,
   and analog comparator outputs for motor control feedback using analog signals.
■ Special-application and simple timers:
◆ 24-bit, four-channel, multi-rate timer (MRT) for repetitive interrupt
   generation at up to four programmable, fixed rates.
◆ Repetitive interrupt timer for general purpose use.
◆ Windowed Watchdog timer (WWDT).
◆ High-resolution 32-bit Real-time clock (RTC) with selectable 1 s or 1 ms time
   resolution running in the always-on power domain. RTC can be used for wake-up
   from all low power modes including Deep power-down. (Continue ...)

Applications
■ Motor control
■ Motion drives
■ Digital power supplies
■ Industrial and medical
■ Solar inverters
■ Home appliances
■ Building and factory automation