General description
The LPC435X_3X_2X_1X are ARM Cortex-M4 based microcontrollers with Floating Point Unit (FPU) for embedded applications which include an ARM Cortex-M0 coprocessor, up to 1 MB of flash and 136 kB of on-chip SRAM, 16 kB of EEPROM memory, two high-speed USB controllers, Ethernet, LCD, an external memory controller, a quad SPI Flash Interface (SPIFI) that supports execute-in-place, advanced configurable peripherals such as the State Configurable Timer (SCTimer/PWM) and the Serial General Purpose I/O (SGPIO) interface, and multiple digital and analog peripherals. The LPC435X_3X_2X_1X operate at CPU frequencies of up to 204 MHz.
The ARM Cortex-M4 is a 32-bit core that offers system enhancements such as low power consumption, enhanced debug features, and a high level of support block integration. The ARM Cortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture with separate local instruction and data buses as well as a third bus for peripherals, and includes an internal prefetch unit that supports speculative branching. The ARM Cortex-M4 supports single-cycle digital signal processing and SIMD instructions. A hardware floating-point processor is integrated into the core.
The ARM Cortex-M0 coprocessor is an energy-efficient and easy-to-use 32-bit core, which is upward code- and tool-compatible with the Cortex-M4 core. It is ideal for handling control or peripheral handling to free up the Cortex-M4 for real-time processing. The Cortex-M0 coprocessor offers up to 204 MHz performance with a simple instruction set and reduced code size. In LPC43xx, the Cortex-M0 coprocessor hardware multiply is implemented as a 32-cycle iterative multiplier.

FEATUREs and benefits
■ Cortex-M4 Processor core
   ♦ ARM Cortex-M4 processor (version r0p1), running at frequencies of up to 204 MHz.
   ♦ Built-in Memory Protection Unit (MPU) supporting eight regions.
   ♦ Built-in Nested Vectored Interrupt Controller (NVIC).
   ♦ Hardware floating-point unit.
   ♦ Non-maskable Interrupt (NMI) input.
   ♦ JTAG and Serial Wire Debug (SWD), serial trace, eight breakpoints, and four watch points.
   ♦ Enhanced Trace Module (ETM) and Enhanced Trace Buffer (ETB) support.
   ♦ System tick timer.
  
■ Cortex-M0 Processor core
   ♦ ARM Cortex-M0 co-processor (version r0p0) capable of off-loading the main ARM Cortex-M4 application processor.
   ♦ Running at frequencies of up to 204 MHz.
   ♦ JTAG
   ♦ Built-in NVIC.
■ On-chip memory
   ♦ Up to 1 MB on-chip dual bank flash memory with flash accelerator.
   ♦ 16 kB on-chip EEPROM data memory.
   ♦ 136 kB SRAM for code and data use.
   ♦ Multiple SRAM blocks with separate bus access. Two SRAM blocks can be powered down individually.
   ♦ 64 kB ROM containing boot code and on-chip software drivers.
   ♦ 64 bit+ 256 bit of One-Time Programmable (OTP) memory for general-purpose use.
■ Configurable digital peripherals
   ♦ Serial GPIO (SGPIO) interface.
   ♦ State Configurable Timer (SCTimer/PWM) subsystem on AHB.
   ♦ Global Input Multiplexer Array (GIMA) allows to cross-connect multiple inputs and outputs to event driven peripherals like the timers, SCTimer/PWM, and ADC0/1.
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APPLICATIONs
■ Motor control 
■ Embedded audio applications
■ Power management 
■ Industrial automation
■ White goods 
■ e-metering
■ RFID readers