LPC122X datasheet(1/60 Pages) NXP

Part #	LPC122X

Description	32-bit ARM Cortex-M0 microcontroller; up to 128 kB flash and 8 kB SRAM

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Manufacturer	NXP [NXP Semiconductors]

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1.

General description

The LPC122x extend NXP's 32-bit ARM microcontroller continuum and target a wide

range of industrial applications in the areas of factory and home automation. Benefitting

from the ARM Cortex-M0 Thumb instruction set, the LPC122x have up to 50 % higher

code density compared to common 8/16-bit microcontroller performing typical tasks. The

LPC122x also feature an optimized ROM-based divide library for Cortex-M0, which offers

several times the arithmetic performance of software-based libraries, as well as highly

deterministic cycle time combined with reduced flash code size. The ARM Cortex-M0

efficiency also helps the LPC122x achieve lower average power for similar applications.

The LPC122x operate at CPU frequencies of up to 45 MHz.They offer a wide range of

flash memory options, from 32 kB to 128 kB. The small 512-byte page erase of the flash

memory brings multiple design benefits, such as finer EEPROM emulation, boot-load

support from any serial interface and ease of in-field programming with reduced on-chip

RAM buffer requirements.

The peripheral complement of the LPC122x includes a 10-bit ADC, two comparators with

output feedback loop, two UARTs, one SSP/SPI interface, one I2C-bus interface with

Fast-mode Plus features, a Windowed Watchdog Timer, a DMA controller, a CRC engine,

four general purpose timers, a 32-bit RTC, a 1 % internal oscillator for baud rate

generation, and up to 55 General Purpose I/O (GPIO) pins.

2.

Features and benefits

 Processor core

 ARM Cortex-M0 processor, running at frequencies of up to 45 MHz (one wait state

from flash) or 30 MHz (zero wait states from flash). The LPC122x have a high

score of over 45 in CoreMark CPU performance benchmark testing, equivalent to

1.51/MHz.

 ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC).

 Serial Wire Debug (SWD).

 System tick timer.

 Memory

 Up to 8 kB SRAM.

 Up to 128 kB on-chip flash programming memory.

 In-System Programming (ISP) and In-Application Programming (IAP) via on-chip

bootloader software.

 Includes ROM-based 32-bit integer division routines.

 Clock generation unit

LPC122x

32-bit ARM Cortex-M0 microcontroller; up to 128 kB flash and

8 kB SRAM

Rev. 1.1 — 21 February 2011

Objective data sheet

Similar Part No. - LPC122X

Manufacturer	Part #	Datasheet	Description
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