57416-S /57C416

57416-S /57C416

：（同号）/，

大量现货，价格合理，当天打款，当天顺丰，即日到货。
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8、台港澳地区（包括中国台湾、香港、澳门）。
 
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介绍

Dallas Semiconductor基于8051的微控制器类产品中，许多型号都支持通过通用RS-232串口实现在系统编程。在系统编程意味着程序和/或数据存储器能够在不用拆解嵌入式系统来替换存储器的情况下进行修改。这种特性强调易使用性和多功能性，在所有嵌入式设计中增加了许多非常重要的特性:

允许硬件在工厂组装和存放，而在出厂前才进行软件定制， 
需要进行软件升级时，消除了在现场拆解器件的高昂代价， 
允许对位置不可达的应用进行软件升级， 
访问配置与状态寄存器，以及使用存储器加密的方式把软件加载到安全微控制器。

具有这种特性的器件包括：

DS2250, DS2250T, DS2251T, DS2252T, DS5000, DS5000T 安全微控制器 DS5000FP,DS5001FP, DS5002FP, DS5002FPM 安全微处理器 DS5240, DS5250 高速安全微处理器DS80C400 网络微处理器DS89C420, DS89C430, DS89C440, DS89C450 超高速闪存微控制器

通过将器件的一个或多个外部引脚设置为某特定状态来激活引导加载程序。器件启动后，开始执行位于器件内部ROM的加载程序。一旦收到一个回车符号，串口就执行自动波特率功能并与主机的波特率同步。主机（通常为PC）和目标板之间的通讯是通过大多数PC上常见的通用RS-232接口完成的，而不需要昂贵的硬件。引导加载程序使用的协议简单，由一个或多个带有相关状态消息和文件传送程序的ASCII字符命令组成。可以使用Dallas Semiconductor免费提供的微控制器工具包通讯软件或任何串口通讯工具软件来完成通讯。57416-S /57C416

大部分此类器件也支持在应用编程，允许器件在应用软件的控制下修改程序存储器。这种方式下，系统能够在仍然履行其主要功能的情况下完成在线软件升级。详细情况在相关器件的数据手册或用户指南中给出。

此文档是对相关器件的数据手册以及使用指南中所提供信息的补充。阅读此应用笔记时，请根据需要参考这些文档。

物理连接

引导加载程序是通过将器件的一个或多个外部引脚置为如表1所示的特定状态来激活的。此时终止执行应用软件，并且将程序控制权交给内部引导ROM。一定要查阅正确的勘误表，以确定是否有与激活引导加载程序相关的任何勘误信息。  

Wang Freestyle Pen and Tablet (TAB-0201-PC2)

Digital Equipment DEC 8-Port Network Hub (DELNI-BA)

Dell Slot 1 System Board (0002909T)

In Socket 8 System Board, ATX from Gateway G6-200 (AA649415-405)

HP System Board LH3r Server - 5183-2480 (D5000-60001)

Apple LC II System Board (820-0327)

HP AT System Board (45945-60044)

In Slot 1 System Board (AA688747-304)

IBM System Board PC 730/750 (96G3712)

IBM System Board - 52G6950-226 (52G6950)

Dell New Logo PS/2 Keyboard GYUR05SK (AT101R)

Compaq 350W Hotplug Power Supply PS4040 (224207-001)

Zenith Memory Expansion Board 181-6860-2 (85-3260-02)

Western Digital 16bit ISA Dual EGA/VGA Card (WD90C11)

Matsushita 360 KB 5.25" HH FDD Vintage Drive (JA-551-045)

Spectra Physics Scale Display for POS System 4683 - RJ11 (960RD)

Micronics 8 Bit ISA Memory Board 47-0019-001 (08-001-201)

Acer EGA/VGA 16bit ISA Video Card (M3125)

Heath Corp. 8 Bit ISA Enhanced Graphics Card Long Vintage (150-280-3)

Probe & Test DAS-4 803349 Gold Fingered DAS Device (C48-1VHT)

In Pentium IV P4 1.6 Ghz/265/400/1.7?5V Socket 423 CPU (SL5UL)

Teapo Electronic Power Supply (TP345B Rev. A)

In PIII Processor RB80526PY500256 (SL3Q9)

In PIII Celeron 600/128/66/1.7V (SL4NX)

In Slot 1 PIII 500Mhz Processor (SL3CD)

In PIII Processor 866Mhz/133/265/?1.7V Processor (SL4MD)

In PIII Processor 933/256/133/1.7?5V (SL5DW)

In Slot 1 PIII 667Mhz 256 Cache Processor 667/256/133 (SL3KW)

QF Stainless Steel Vacuum Pump Flex Hose 10 Inches (2 1/8")

Polycom SoundStation Premier (2201-01900-001?)

Toshiba Toshiba Multimedia Port Replicator w/CD (PA2662U)

IBM 335W Power Supply - Delta SMP-332AB (92F0051)

Cisco 2500 Series ENET Token Ring Serial Router (Cisco2513)

Compaq 24x10x40x CD-RW (260625-B22)

Zebra Transportable System (PS2122)

3M Franklin ecom 44 Magnum Internal Tape Drive (84-9801-6012-5?)

Linksys EtherFast 10/100 Auto-Sensing 24-Port Hub (EFAH24)

Cal Com Smart Modem (AT-1496 SA)

Humboldt Mfg Instrument Stand (21235)

Canon Toner Cartridge Black for NP-6050 (NPG-10)

Dodge Sheave 1A6.6/B7.0-2517 Taper Lock Bush (118340)

Compaq Docking Station for PP2000/PP2010 (PP200SA)

Kidde Fire Extinguisher (XL 5 TCZ)

Dell Port Replicator Latitude PDS - C/Port (84795)

Electro Switch Corp Detent Action Rotary Switch Series 31 (Cat 31204A.S)

Sun 1.2GB 5.25" FH SCSI Hard Drive - Seagate PA4F2A (3701378-01)

Mountain External Tape Drive (01-30523-01)

Cisco Catalyst 2900 XL 24 port - 10/100 Switch (WS-C2924-XL-EN?)

ASCO 8262G080 2-Way Solenoid Valve 1/4" Pipe 500 PSI 10.6W Red-Hat

Power One Component Type Custom Rectifier Power Supply (HN24-3.6-A)

Zenith Power supply for ZFX-0248 Desktop Computer (234-850)

Zenith Power supply for ZFX-0248 Desktop Computer (234-859)

IBM 6 Base Networking Hub 8222 (60G2534)

NEC 2x External Multispin CD-ROM Drive (CDR-300)

SMC Drain catch (AMG150)

Allen-Bradley Power Supply - Bulletin 1771 (1771-P2)

Hewlett Packard OmniBook 6000 Port Replicator (F1451A)

Emulex LightPulse PCI Host Adapter w/ manuals (FC1020017-07B)

IBM MCA POS Expansion Card (73G2758)

Everex MCA Tape Controller (PWA-00246) (EV-815)

Warren Rupp Filter Regulator 1.0MPa 145 PSIG Max (020-046-000)

Samsung Electronics Motherboard 6LXA-31A rev 1 (BA41-10022Y)

Mitsubishi 12 Volt Alternator from Truck (TVG)

GCC Technologies Inc ColorTone Printer Ink Ribbon (SH 4320)

Power Controls ephone Power Supply (550005)

Cable DB50 Male to 7 DB25 Female Cable Set (Mixed)

Anatec Tower Computer Case - Aluminum (Silver)

Compaq 20.0GB 3.5" IDE Hard Drive - Quantum 20.4AT (201721-001)

IBM Add On Paper Tray (Laser Printer 6)

APC Back 8 Outlet UPS - No Battery (BE500R)

Mitsubishi Transceiver (FA-1500)

Elpac AC Adapter WRI 3014S for IBM 4683 POS System (80061797)

Delta Electronics Power supply 100 Watt (DPS-145PB-78)

LW Controller (Editing)

Synoptics 58000 Centillion 5000 Ethernet Switch Base Board (58000)

Allied esyn CentreCOM Ethernet Switch (FS716E)

Sun Power Supply (300-1301-03)

Symbol Keyboard Wedge Hand Held Barcode Scanner Kit (LT-1880 I100A)

APW 8 Port 1U Rackmount LMS Switch Keyboard Video Mouse Controller (CSW18)

C.S.I. AT Power Supply 150 Watts (150W)

PREH Commander Keyboard PC-POS Junior w/Cable (90314-000)

CalComp Sketch Pad (10120A)

Dell 180W Power Supply - HP-U1806F3 (1N405)

Quasar ephone Answering System with Facsimile - Missin (PAX600H)

Phoenix Photofile Case of 4"x6" Photograph Organizers 10 per case (46100)

Systems Magnetic Co. Linear Actuator (67600978001)

Cambridge Filter Corp. Air Filter (4780581)

Dell Advanced Port Replicator - PRX - DELL LBL P/N 1978 (MX-02E599)

Browning Sheave (BK115H)

Bay Networks BayStacker 16 Port Autosense Switch (Bay Stack 350T)

Delta Electronics Heavy Duty AT Style Vintage Power Supply (DPS-200EB Rev.B7)

BTC AT Keyboard (BTC-5339)

HP LaserJet 4000/4050/4100 - LGL 500 Sheet Paper Tray (C8056A)

Apple Apple Power Supply MAC SE - Sony CR-44 (699-5047)

In 2400EX MNP Class 5 Modem (New) (PCEM7424)

Compaq 400W Power Supply Hot Plug (194989-001)

HP Dual Processor Board 6/200-512K (D4311-60002)

HP Dual Processor Board 6/200-512K (D4311-60005)

LCT Technology 234W AT Power supply (235W)

Toshiba Tecra 8000 Port Replicator (PA2724U)

Dodge Sheave (121095 BK100H)

Cashco stainless steel pressure reducing regulator (8903)

Hitachi 0A31605 40.0GB 3.5" ATA/IDE HDS728080PLAT20 Deskstar Hard Drive

Signamax 24-Port CAT 5E patch panel (24458MD-C5E)

Honeywell Grad-U-Stat Thermostat - 80 to 120 F - New (LP900A 1066)

HP Toner Cartridge Magenta for LJ 4500,4550 (C4193A)

HP SCSI Interface Board (C5175-66519)

Anchor Signalman Lightning 24 External Modem (MK24)

IBM ThinkPad 24x10x CD-ROM (05K9122)

Adaptec Dual Channel SCSI Card (AHA-3960 CPQ02)

Chromalox Cartridge Heater (CIR-1012)

Dial Electronics Counter - 5 Pack (H507-6A)

Linak Linear Actuator Housing (LS 22-50)

Gateway Solo 5300 Laptop Heatsink and Cooling Fan (8004661)

Gateway Solo 5300 Laptop Heatsink and Cooling Fan (8005428)

IBM Thinkpad 8x4x2x CD-RW Drive (08K9569)

Wyse Technology Video Card - 990435-05 Rev D1 (840720-19)

Sigma Instruments Instrument Motor (20-2220BD-2817?8)

Dell Inspiron 5100 32MB ATI Video Card (09U768)

Keithley Operator's Manual (Model 236/237/238 Source Measure Unit)

Fuji Electric 15 AMP 600 Volt AC 3 Pole Circuit Breaker (BU-ESB3015)

Browning Sheave (AK89X1)

Cyclone HP Deskjet 1200 1000 Replacement Ink Jet Cartridge (51640/44/50M)

Whang, Sung H/ DasGupta A publication of the Minerals, Metals And Material

Goto, E/ Wada, Y/ Loe, F.K. World Scientific Publishing Co. 1992

M&T Harbormaster Instruction Manual & Parts List (Model N6)

Gateway 20.5GB 3.5" IDE Hard Drive - Quantum 20.5AT (5501431)

Dell 250W AT Power Supply - HP-P2507F3C (0N380)

Power Tronic 145W SwitchingPower Supply (PK-6145DT3)

BTC AT Keyboard (BTC-5339SX)

AST AST Advantage ISA Memory Card (202051)

Compaq Wireless Keyboard Mouse Receiver - Grey (300403-008)

Zenith ZDS Power Supply (234-1187)

IBM 3174 TMA Card Feature card 3103 61X4649 9172 (53F5392)

Toshiba Toshiba T2400 T2450CT Port Replicator (PA2704U)

Extended Systems Sharespool XL Print Buffer mn ESI-2249A (ESI-2249A)

IDATA A-S ida FLEX Box, IBM Twinax/Coax Converter (940003)

Lapper Polishing Weight Outside Diameter 106mm (10.25 lb.)

Dynacom 24 port Patch Panel (CAT 5e)

Colorado Jumbo 1400 Internal Tape Drive (6000-0035)

M A systems 25 pin parallel 9 pin serial with memory Card 9000 (900014)

Mylex ISA 8 Bit Parallel Port/DB 9F (010256)

Generic Das Device (110-117c Rev G)

Generic Das Device (110-117c)

Dell 9.1GB 3.5" IDE Hard Drive - Maxtor 90913D4 (2151P)

IBM 14.4GB 3.5" IDE Hard Drive (00K4071)

Seagate 10.0GB 3.5" IDE Hard Drive (ST310211A)

Compaq 6.4GB 3.5" IDE Hard Drive - Fujitsu MPC3064AT- 38 (166973-001)

IBM 342MB 3.5" IDE Hard Drive - H3342-A4 92F0404 (92F0404)

Samsung 1.27GB 3.5 IDE Hard Drive (PLS-31274A)

Fujitsu 1.6GB 3.5" IDE Hard Drive (M1614TAU)

TriGem 8.4GB 3.5" IDE Hard Drive (SV0844D/TGE)

Toshiba 340MB Laptop Hard Drive (MK2326FC)

Seagate 10.2GB 3.5" IDE Hard Drive (ST310232A)

Samsung 560MB 3.5" IDE Hard Drive (SHD-30560A)

Seagate 261MB 3.5" IDE Hard Drve (ST3391A)

IBM 2.7GB 3.5" IDE Hard Drive (76H0961)

IBM 4.5GB 3.5" SCSI Hard Drive 68 Pin (76H2697)

Dell 10.2GB 3.5" IDE Hard Drive - Maxtor 51023H2 (68UHE)

Western Digital 1.0GB 3.5" IDE Hard Drive (WDAC21000)

IBM 635MB 3.5" IDE Hard Drive - WDAC2635 (06H9063)

Conner 1.0GB 3.5" SCSI Hard Drive 80 Pin (CFP1060S)

IBM 30.0GB 3.5" IDE Hard Drive - Fujitsu MPG3307AH (19K1567)

HP 4.5GB 3.5" SCSI Hard Drive 68 Pin - Quantum 4.550W (D5095-63001)

HP 9.1GB 3.5" SCSI Hard Drive 80 Pin (D6107-63001)

IBM 4.3GB 3.5" IDE Hard Drive - Maxtor 90430D3 (12J3143)

Hitachi 61.4GB 3.5" IDE Hard Drive (14R9210)

Seagate 3.2GB 3.5" IDE Hard Drive (ST33210A)

Fujitsu 5.2GB 3.5" IDE Hard Drive (MPA3052AT)

Western Digital 1.6GB 3.5" IDE Hard Drive (WDAC21600)

Compaq 3.2GB 3.5" IDE Hard Drive - AC13200 (166873-001)

Fujitsu 3.2GB 3.5" IDE Hard Drive (MPA3035AT)

Western Digital 1.2GB 3.5" IDE Hard Drive (WDAC31200)

IBM 1.7GB 3.5" IDE Hard Drive (06H8728)

Western Digital 3.2GB 3.5" IDE Hard Drive (AC13200)

Sun Microsystems 1.08GB 3.5 " SCSI Hard Drive 80 Pin - CFP108 E (3701964-03)

Dell 4.3GB 3.5" IDE Hard Drive - Western Digital AC243 (8038C)

Seagate 4.3GB 3.5" IDE Hard Drive (ST34342A)

Maxtor 10.8GB 3.5" IDE Hard Drive (91080D5)

Fujitsu 2.6GB 3.5" IDE Hard Drive (MPA3026AT)

Western Digital 4.3GB 3.5" IDE Hard Drive (Ac24300)

HP 3.2GB 3.5" IDE Hard Drive - Quantum 2550AT (D2678-60101)

Conner 635MB 3.5" IDE Hard Drive (CFS635A)

Seagate 428MB 3.5" Hard Drive (ST3491A)

Fujitsu 3.2GB 3.5" IDE Hard Drive (MPB3032AT)

Western Digital 20.5GB 3.5" IDE Hard Drive (WD205BA)

Seagate Barracuda 7200.7 40GB IDE HDD 3.5" 9W2005-032 ST340014A

Lapper Polishing Weight Outside Diameter 106mm (7.75 lb.)

Lapper Weight (7.9 lb.)

Epson Cut Sheet Feeder (7334A)

Computer Accessories Transient Voltage Surge Suppressor (P 15)

SMC High-Precision Digital Pressure Switch (ISE30-C6L-25-M?)