描述：The LPC2144FBD64 is a 16-/32-bit Microcontroller based on ARM7TDMI-S CPU with real-time emulation and embedded trace support. A 128-bit wide memory interface and an unique accelerator architecture enable 32-bit code execution at maximum clock rate. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30 % with minimal performance penalty. The device incorporates 128kB embedded high speed flash, 16kB on-chip SRAM, 16-channel 10-bit A/D converter, 10-bit D/A converter, three 32-bit timers, PWM channels and 45 general-purpose I/O pins. . In-system programming/In-application programming (ISP/IAP) . EmbeddedICE RT and embedded trace interfaces . USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM . Single 10-bit DAC provides variable analog output . Two 32-bit Timers/external event counters, PWM unit and watchdog . Low power real-time clock (RTC) with independent power and 32kHz clock input . Multiple serial interfaces including two UARTs (16C550), two Fast I2C-bus (400 Kbit/s), SPI and SSP . Vectored interrupt controller (VIC) with configurable priorities and vector addresses . Up to 45 of 5V tolerant fast general purpose I/O pins . Up to 21 external interrupt pins available . 60MHz Maximum CPU clock available from programmable on-chip PLL . On-chip integrated oscillator operates with an external crystal from 1MHz to 25MHz . Power saving modes include Idle and power-down . Individual enable/disable of peripheral functions as well as peripheral clock scaling . Processor wake-up from Power-down mode via external interrupt or BOD . Single power supply chip with POR and BOD circuits