Описание
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.
- 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
