Entry-level 32-bit Microcontroller (MCU) based on Arm® Cortex®-M3 Core



  • Arm Cortex-M3 r2p1 processor, running at frequencies of up to 72 MHz
  • Arm Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC).
  • Non Maskable Interrupt (NMI) input selectable from several input sources
  • System tick timer
  • 64 kB on-chip flash program memory with a 256 byte page erase function
  • In-System Programming (ISP) and In-Application Programming (IAP)
  • 4 kB on-chip EEPROM data memory with on-chip API support
  • 12 kB SRAM data memory
  • 16 kB boot ROM with API support
  • Standard JTAG test interface for BSDL
  • Serial Wire Debug
  • Support for ETM Arm Cortex-M3 debug time stamping
  • 26 General Purpose I/O (GPIO) pins
  • 8 GPIO pins can be selected as edge and level sensitive interrupt sources
  • Two GPIO grouped interrupt modules
  • High-current source output driver (20 mA) on one pin (P0_7)
  • High-current sink driver (20 mA) on true open-drain pins (P0_4 and P0_5)
  • Four general purpose counter/timers
  • Programmable Windowed WatchDog Timer (WWDT)
  • Repetitive Interrupt Timer (RI Timer)
  • 12-bit ADC with eight input channels and sampling rates of up to 500 kSamples/s
  • USB 2.0 full-speed device controller
  • USART with fractional baud rate generation
  • Two SSP controllers with FIFO and multi-protocol capabilities
  • I2C-bus interface supporting the full I2C-bus specification and Fast-mode Plus
  • Crystal Oscillator with an operating range of 1 MHz to 25 MHz
  • 12 MHz high-frequency Internal RC oscillator (IRC) trimmed to 1 % accuracy
  • Internal low-power, low-frequency WatchDog Oscillator (WDO)
  • PLL allows CPU operation up to the maximum CPU rate
  • A second, dedicated PLL is provided for USB
  • Clock output function with divider
  • Four reduced power modes
  • Power profiles residing in boot ROM
  • Processor wake-up
  • Integrated PMU (Power Management Unit)
  • Power-On Reset (POR)
  • Brownout detect with four separate thresholds for interrupt and forced reset
  • Unique device serial number for identification
  • Single 3.3 V power supply (2.0 V to 3.6 V)

Target Applications

  • Consumer peripherals
  • Medical
  • Industrial control
  • Handheld scanners
  • USB audio devices

部品番号: LPC1347FHN33.


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