LPC1346FBD48中文资料基于ARM® Cortex®-M3内核的入门级32位微控制器(MCU)数据手册恩XP规格书

描述 Description

The LPC1346FBD48 is an Arm Cortex-M3 based microcontroller for embedded applications featuring a high level of integration and low power consumption. The Arm Cortex-M3 is a next generation core that offers system enhancements such as enhanced debug features and a higher level of support block integration. The LPC1346FBD48 operates at CPU frequencies of up to 72 MHz. The Arm Cortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture with separate local instruction and data buses as well as a third bus for peripherals. The Arm Cortex-M3 CPU also includes an internal prefetch unit that supports speculative branching.

特性 Features

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
48 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
10 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
40 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)

应用 Application

消费电子外设
医疗设备
工业控制
手持式扫描仪
USB音频设备