Low-Cost Microcontrollers (MCUs) based on Arm® Cortex®-M0+ Core

LPC8N04

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LPC8N04 is a cost-effective MCU which serves as an entry-level connectivity solution for embedded applications with integrated NFC connectivity. The LPC8N04 MCU contains multiple features, including several power-down modes and a selectable CPU frequency of up to 8 MHz for ultra-low power consumption. The peripheral complement of the LPC8N04 MCU includes 32 kB of flash memory, 8 kB of SRAM, 4 kB of EEPROM, one I2C, one SPI/SSP, and up to 12 general purposes I/O pins.

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Block Diagram

LPC8N04 MCU

LPC8N04 MCU
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Features

System

  • Arm® Cortex®-M0+ core running at frequencies of up to 8 MHz
  • Nested Vectored Interrupt Controller (NVIC)
  • Arm Serial Wire Debug (SWD)
  • System tick timer
  • IC reset input

Memory

  • 32 kB on-chip flash programming memory
  • 8 kB SRAM
  • 4 kB on-chip EEPROM

Digital peripherals

  • Up to 12 General-Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors and repeater mode
  • GPIO pins which can be used as edge and level sensitive interrupt sources
  • High-current drivers/sinks (20 mA) on four GPIO pins
  • High-current drivers/sinks (20 mA) on two I2C-bus pins
  • Programmable Watchdog Timer (WDT)
  • Real-Time Clock (RTC) Timer

Communication interfaces

  • NFC/RFID ISO 14443 type A interface
  • Serial I2C-bus supporting full I2C-bus specification and Fast-mode with a data rate of 400 kbit/s, with multiple address recognition and monitor mode
  • SPI/SSP interface

Clock generation

  • 8 MHz internal RC oscillator, trimmed to 2% accuracy, which is used for the system clock
  • Timer oscillator operating at 32 kHz linked to the RTC timer unit

Power control

  • Support for 1.72 V to 3.6 V external voltages
  • The LPC8N04 can also be powered from the NFC field
  • Activation via NFC
  • Integrated Power Management Unit (PMU) for versatile control of power consumption
  • Four reduced power modes for Arm Cortex-M0+: sleep, deep-sleep, deep power-down and battery-off
  • Power gating for each analog peripheral for ultra-low power operation
  • < 50 nA IC current consumption in Battery-off mode at 3.0 V
  • Power-On Reset (POR)

Additional features

  • Temperature sensor with +/- 1.5°C accuracy from
    - 40°C to 85°C
  • Unique device serial number for identification

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