General description
The LPC1759/58/56/54/52/51 are ARM Cortex-M3 based microcontrollers for embedded
applications featuring a high level of integration and 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 LPC1758/56/57/54/52/51 operate at CPU frequencies of up to 100 MHz. The
LPC1759 operates at CPU frequencies of up to 120 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 peripheral complement of the LPC1759/58/56/54/52/51 includes up to 512 kB of flash
memory, up to 64 kB of data memory, Ethernet MAC, USB Device/Host/OTG interface,
8-channel general purpose DMA controller, 4 UARTs, 2 CAN channels, 2 SSP controllers,
SPI interface, 2 I2C-bus interfaces, 2-input plus 2-output I2S-bus interface, 6 channel
12-bit ADC, 10-bit DAC, motor control PWM, Quadrature Encoder interface, 4 general
purpose timers, 6-output general purpose PWM, ultra-low power Real-Time Clock (RTC)
with separate battery supply, and up to 52 general purpose I/O pins.
For additional documentation, see Section 19 “References”.
Features and benefits
 ARM Cortex-M3 processor, running at frequencies of up to 100 MHz
(LPC1758/56/57/54/52/51) or of up to 120 MHz (LPC1759). A Memory Protection Unit
(MPU) supporting eight regions is included.
 ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC).
 Up to 512 kB on-chip flash programming memory. Enhanced flash memory accelerator
enables high-speed 120 MHz operation with zero wait states.
 In-System Programming (ISP) and In-Application Programming (IAP) via on-chip
bootloader software.
 On-chip SRAM includes:
 Up to 32 kB of SRAM on the CPU with local code/data bus for high-performance
CPU access.
 Two/one 16 kB SRAM blocks with separate access paths for higher throughput.
These SRAM blocks may be used for Ethernet (LPC1758 only), USB, and DMA
memory, as well as for general purpose CPU instruction and data storage.
Applications
 eMetering
 Lighting
 Industrial networking
 Alarm systems
 White goods
 Motor control