參數(shù)資料
型號(hào)： LPC2378FBD144
廠商： NXP Semiconductors N.V.
元件分類(lèi)： 數(shù)學(xué)處理器
英文描述： Single-chip 16-bit-32-bit microcontrollers; 512 kB flash with ISP-IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC-DAC
封裝： LPC2377FBD144<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486-1.html<1<Always Pb-free,;LPC2378FBD144<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486-1.htm
文件頁(yè)數(shù)： 30/68頁(yè)
文件大小： 1443K
代理商： LPC2378FBD144
LPC2377_78
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 5 — 17 June 2010
30 of 68
NXP Semiconductors
LPC2377/78
Single-chip 16-bit/32-bit microcontrollers
7.23 Watchdog timer
The purpose of the watchdog is to reset the microcontroller within a reasonable amount of
time if it enters an erroneous state. When enabled, the watchdog will generate a system
reset if the user program fails to ‘feed’ (or reload) the watchdog within a predetermined
amount of time.
7.23.1
Features
Internally resets chip if not periodically reloaded.
Debug mode.
Enabled by software but requires a hardware reset or a watchdog reset/interrupt to be
disabled.
Incorrect/Incomplete feed sequence causes reset/interrupt if enabled.
Flag to indicate watchdog reset.
Programmable 32-bit timer with internal prescaler.
Selectable time period from (T
cy(WDCLK)
×
256
×
4) to (T
cy(WDCLK)
×
2
32
×
4) in
multiples of T
cy(WDCLK)
×
4.
The Watchdog Clock (WDCLK) source can be selected from the RTC clock, the
Internal RC oscillator (IRC), or the APB peripheral clock. This gives a wide range of
potential timing choices of Watchdog operation under different power reduction
conditions. It also provides the ability to run the WDT from an entirely internal source
that is not dependent on an external crystal and its associated components and
wiring, for increased reliability.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC2378FBD144,551 功能描述:ARM微控制器 - MCU ARM7 512KF/USB/ENET RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
LPC2378FBD144/CP32 制造商:NXP Semiconductors 功能描述:- Trays
LPC2378FBD144/CP3E 制造商:NXP Semiconductors 功能描述:
LPC2378FBD144551 制造商:NXP Semiconductors 功能描述:IC 32BIT MCU ARM7 72MHZ LQFP-144
LPC2378-STK 功能描述:開(kāi)發(fā)板和工具包 - ARM DEV BRD FOR LPC2378 512KB FLASH 16KB RAM RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評(píng)估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類(lèi)型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
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