32-bit ARM Cortex-M3 MCU; up to 1 MB flash and 136 kB
SRAM; Ethernet, two High-speed USB, LCD, EMC
Rev. 4 — 31 October 2012
Preliminary data sheet
1. General description
The LPC185x/3x/2x/1x are ARM Cortex-M3 based microcontrollers for embedded
applications. The ARM Cortex-M3 is a next generation core that offers system
enhancements such as low power consumption, enhanced debug features, and a high
level of support block integration.
The LPC185x/3x/2x/1x operate at CPU frequencies of up to 180 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
The LPC185x/3x/2x/1x include up to 1 MB of flash and 136 kB of on-chip SRAM, 16 kB of
EEPROM memory, a quad SPI Flash Interface (SPIFI), a State Configurable Timer (SCT)
subsystem, two High-speed USB controllers, Ethernet, LCD, an external memory
controller, and multiple digital and analog peripherals.
2. Features and benefits
ARM Cortex-M3 processor, running at CPU frequencies of up to 180 MHz.
ARM Cortex-M3 built-in Memory Protection Unit (MPU) supporting eight regions.
ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC).
Non-maskable Interrupt (NMI) input.
JTAG and Serial Wire Debug, serial trace, eight breakpoints, and four watch points.
Enhanced Trace Module (ETM) and Enhanced Trace Buffer (ETB) support.
System tick timer.
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.
64 kB ROM containing boot code and on-chip software drivers.
64 bit of One-Time Programmable (OTP) memory for general-purpose use.
Clock generation unit
Crystal oscillator with an operating range of 1 MHz to 25 MHz.
12 MHz internal RC oscillator trimmed to 2 % accuracy over temperature and
voltage (1 % accuracy for Tamb = 0 °C to 85 °C).
Datasheet pdf - http://www.DataSheet4U.co.kr/