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1、控制存储器（contmlMemory）用来存放各机器指令对应的微程序。译码器用来形成机器指令对应的微程序的入口地址。当将一条机器指令对应的微程序的各条微指令逐条取出，并送到微指令寄存器时，其微操作命令也就按事先的设计发出，因而也就完成了一条机器指令的功能。对每一条机器指令都是如此。
2、微指令的宽度直接决定了微程序控制器的宽度。为了简化控制存储器，可采取一些措施来缩短微指令的宽度。如采用字段译码法一级分段译码。显然，微指令的控制字段将大大缩短。，一些要同时产生的微操作命令不能安排在同一个字段中。为了进一步缩短控制字段，还可以将字段译码设计成两级或多级。

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MEASUREX 05345500 VPU TERMINATION PCB CIRCUIT BOARD REV C D327299

SQUARE D 52046-117-62 THYRISTOR SCR POWER ASSEMBLY D471349

NEW ASHCROFT B464B XCHLE PRESSURE 60PSI 4KG/CM2 125/250/480V-AC SWITCH B477950

ASHCROFT B424S XCHJKLE PRESSURE 100PSI 7KG/CM2 125/250/480V-AC SWITCH B477922

NEW FERRAZ 67563 3P POLE INTERMEDIATE PDB BLOCK TERMINAL 600V-AC B302092

NEW ALLEN BRADLEY 1485R-P1R5-C DEVICENET CORDSET MICRO CABLE-WIRE SER A B342280

NEW TEXAS INSTRUMENTS 500-5001 50/60HZ INPUT MODULE 85-132V-AC 20MA B234595

NEW BALLUFF BOS0012 BOS 12M-PS-1YA-S4-C PHOTOELECTRIC SENSOR 10-30V-DC D284476

ELAN TESZ 1102/30 TYPE 5 12 13 ENCLOSURE HINGED INTERLOCK SAFETY SWITCH B417482

NEW MICRO SWITCH V3L-1108-D8 250V-AC 1/3HP 10A AMP LIMIT SWITCH D474438

MEASUREX 05321100 HONEYWELL THERMAL PREDICTOR A PCB CIRCUIT BOARD B424552

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NEW ALLEN BRADLEY 800H-PRT16 GREEN PUSHBUTTON SER F 120V-AC D324026

NEW BANNER 16126 BR-2 RELAY 250V-AC 10A AMP B266721

NEW SUNX CN-74-C2 4 UCN74C2 WIRE AMPLIFIER CONNECTION CABLE-WIRE D254717

NEW CUTLER HAMMER E51DP5 PHOTOELECTRIC HEAD SENSOR 15FT SER B4 D214950

NEW ALLEN BRADLEY 1784KTX COMMUNICATION CARD INTERFACE MODULE SER B D309109

NEW SQUARE D 8030 DOM-221 SY/MAX SER B 120V-AC 2A OUTPUT MODULE D401346

L-RON LT1-180-K66 SOLID STATE RELAY 0.1-180SEC SECONDS TIMER 120V-AC 10A B295461

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HONEYWELL 30754922-501 OUTPUT PRINTED CIRCUIT BOARD MODULE DR4500 B224648

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NEW ICORE ACUREX 43420-010 ASSEMBLY 110V-AC POWER SUPPLY B474306

NEW ALLEN BRADLEY 1746-IA8 SLC500 INPUT MODULE SER A 85-132V-AC D321682

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ABB 3BSE013230R1 COMPACT MTU MODULE TERMINAL BASE CONNECTOR CONTROL D205098

NEW FOX METER F161-307 600V-AC METER D431153

NEW I 515.95 V PROXIMITY 20-250V-AC SENSOR B421941

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NEW ALLEN BRADLEY 1203-GD2 COMMUNICATION MODULE SER B FRN 2.04 240V AC D225921

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NEW SQUARE D 9007C062 CLASS LIMIT TYPE 6P SERIES A 600V-AC SWITCH D384965

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NEW TIME ELECTRONICS DBU-25P-FO 21000370 ITT CANNON D-SUB CONNECTOR D444444

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GE FANUC IC3600EPZU1A PCB CIRCUIT BOARD CONTROL D205104

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NEW LEAF TECHNOLOGY LTPF-120VAC CARD 120V-AC 24V-DC 5MA INTERFACE MODULE D376600

WESTRONICS CB100281-01 PCB CIRCUIT BOARD REV C D465588

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ERIEZ FT 26 VIBRATOR CONTROL 115V-AC 2A AMP CONTROLLER B375297

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SCHNEIDER 140XBP01600 16-SLOT BACKPLANE CHASSIS RACK D456026

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NEW ABB CO-9 OVERCURRENT 264C901A05 HILO OVERCURRENT 1-12A AMP RELAY B481340

LA-11H PCB CIRCUIT BOARD D466428

GENERAL ELECTRIC GE 12IAC53A3A TIME OVERCURRENT 0.5-2A AMP RELAY B474889

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NEW PANDUIT PN14-14F-C PAN-TERM WIRE SIZE 14-18 TERMINAL CONNECTOR D337227

NEW CUTLER HAMMER 8161B-1X2 PHOTOELECTRIC MODULE OPCON CONTROLLER B212868

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NEW IFM EFECTOR E10901 90DEG ANGLE CONNECTOR CABLE ASSEMBLY D421317

NEW IFM EFECTOR E18018 CABLE-WIRE 300V-AC/DC D227303

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GENERAL ELECTRIC GE 12HFA51B42 TYPE HFA DC 125V-AC AUXILIARY RELAY B396702

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RED LION APLID400 DC 4DIGIT CURRENT METER 115V-AC D385517

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WOODHEAD 1300060996 4P MALE STRAIGHT 6FT PVC CORDSET CABLE-WIRE B408721

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COMPAQ 004009-001 X03L06922 2 SLOT POWER INPUT MODULE B300791

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