General description
The LPC1769/68/67/66/65/64/63 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 LPC1768/67/66/65/64/63 operate at CPU frequencies of up to 100 MHz. The
LPC1769 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 LPC1769/68/67/66/65/64/63 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, 3 I2C-bus interfaces, 2-input plus 2-output I2S-bus interface,
8-channel 12-bit ADC, 10-bit DAC, motor control PWM, Quadrature Encoder interface,
four general purpose timers, 6-output general purpose PWM, ultra-low power Real-Time
Clock (RTC) with separate battery supply, and up to 70 general purpose I/O pins.
The LPC1769/68/67/66/65/64/63 are pin-compatible to the 100-pin LPC236x Arm7-based
microcontroller series.
For additional documentation, see Section 19 “References”.
Features and benefits
 Arm Cortex-M3 processor, running at frequencies of up to 100 MHz
(LPC1768/67/66/65/64/63) or of up to 120 MHz (LPC1769). 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:
 32/16 kB of SRAM on the CPU with local code/data bus for high-performance CPU
access.
Applications
 eMetering  Alarm systems
 Lighting  White goods
 Industrial networking  Motor control