描述 Description

The LPC2377 is an Arm7 microcontroller for embedded applications featuring a high level of integration and low power consumption at frequencies of 72 MHz. Features include 512 kB of flash memory, 58 kB of SRAM, Ethernet MAC, DMA controller, 4 UARTs, 2 SSP, 1 SPI, 3 I2C, I2S, 8-channel 10-bit ADC, 10-bit DAC,PWM, 4 general purpose timers, low power RealTime Clock with separate battery supply, and up to 104 general purpose I/O pins. The LPC2377 is pin-compatible to the LPC176x Cortex-M3 MCU series.

特性 Features

? Arm7TDMI-S? processor, running at up to 72 MHz
? Up to 512 kB on-chip flash program memory
? 32 kB of SRAM on the Arm local bus for high performance CPU access
? 16 kB SRAM for Ethernet interface
? 8 kB SRAM for general purpose DMA use
? Dual Advanced High-performance Bus (AHB) system
? EMC provides support for static devices
? Advanced Vectored Interrupt Controller (VIC)
? General Purpose DMA controller (GPDMA) on AHB
? Ethernet MAC with associated DMA controller
? Four UARTs with fractional baud rate generation
? SPI controller
? Two SSP controllers with FIFO and multi-protocol capabilities
? Three I2C-bus interfaces
? I2S (Inter-IC Sound) interface for digital audio input or output
? SD/MMC memory card interface
? 104 General purpose I/O pins with configurable pull-up/down resistors
? 10-bit ADC with input multiplexing among 8 pins
? 10-bit DAC
? Four general purpose timers/counters
? One PWM/timer block with support for three-phase motor control
? Real-Time Clock (RTC)
? 2 kB SRAM powered from the RTC power pin
? WatchDog Timer (WDT)
? Standard Arm test/debug interface for compatibility with existing tools
? Emulation trace module supports real-time trace
? Single 3.3 V power supply (3.0 V to 3.6 V)
? Four reduced power modes: idle, sleep, power-down, and deep power-down
? Four external interrupt inputs configurable as edge/level sensitive
? Processor wake-up from Power-down mode
? Two independent power domains allow fine-tuning of power consumption
? Each peripheral has its own clock divider for further power saving
? Brownout detect with separate thresholds for interrupt and forced reset
? On-chip power-on reset
? On-chip crystal oscillator with an operating range of 1 MHz to 25 MHz
? 4 MHz internal RC oscillator trimmed to 1 % accuracy
? On-chip PLL allows CPU operation up to the maximum CPU rate
? Boundary scan for simplified board testing

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