Digital Electronics: Principles, Devices and Applications

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Logic Gates and Related Devices 77AB(a)Y=A+BA0011B0101(b)Y0110A0000000011111111B0000111100001111C0011001100110011D0101010101010101Y0110100110010110(c)Figure 4.12 (a) Circuit symbol of a two-input EXCLUSIVE-OR gate, (b) the truth table of a two-inputEXCLUSIVE-OR gate and (c) the truth table of a four-input EXCLUSIVE-OR gateExample 4.5How do you implement three-input and four-input EX-OR logic functions with the help of two-inputEX-OR gates?SolutionFigures 4.13(a) and (b) show the implementation of a three-input EX-OR logic function and a four-inputEX-OR logic function using two-input logic gates:• For Fig. 4.13(a), the output Y 1 is given by A ⊕ B. The final output Y is given by Y = Y 1 ⊕ C =A ⊕ B ⊕ C = A ⊕ B ⊕ C.• Figure 4.13(b) can be explained on similar lines.
78 Digital ElectronicsAY1BCY(a)ABCDY1Y2Y(b)Figure 4.13(a) Three-input EX-OR gate and (b) a four-input EX-OR gate.Example 4.6How can you implement a NOT circuit using a two-input EX-OR gate?SolutionRefer to the truth table of a two-input EX-OR gate reproduced in Fig. 4.14(a). It is clear from the truthtable that, if one of the inputs of the gate is permanently tied to logic ‘1’ level, then the other inputand output perform the function of a NOT circuit. Figure 4.14(b) shows the implementation.A0011B0101Y0110(a)'1'InputOutput(b)Figure 4.14Implementation of a NOT circuit using an EX-OR gate.
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Digital ElectronicsDigital Electron
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Copyright © 2007John Wiley & Sons
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ContentsPrefacexxi1 Number Systems
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ContentsixReview Questions 67Proble
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Contentsxi6.3.8 Theorem 8 1966.3.9
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Contentsxiii9.11.3 Verilog 3399.11.
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Contentsxv12.2.5 Nonlinearity and D
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Contentsxvii13.10.3 80286 Microproc
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ContentsxixReview Questions 650Prob
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PrefaceDigital electronics is essen
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Prefacexxiiilogic analysers, freque
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Number Systems 3The value or magnit
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Number Systems 5The 1’s complemen
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Number Systems 7• The fractional
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Number Systems 9• The octal equiv
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Number Systems 11Solution• The gi
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Number Systems 13Hexadecimal system
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Number Systems 15Byte-1 Byte-2 Byte
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Number Systems 17Therefore, the exp
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2Binary CodesThe present chapter is
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Binary Codes 212.1.3 Higher-Density
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Binary Codes 23Fractional part = .7
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128 Digital Electronics4K 1301.6KVC
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138 Digital ElectronicsVCCR 137KR 2
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140 Digital Electronicsfeatures of
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142 Digital ElectronicsFigure 5.24H
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144 Digital Electronics+VCC+VCCR1IO
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148 Digital Electronics5.4.1.2 MECL
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150 Digital ElectronicsFigure 5.33E
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152 Digital Electronicsfunctions as
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154 Digital ElectronicsVDDAQ1BQ 2Y=
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166 Digital Electronicslogic status
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6Boolean Algebra andSimplification
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Boolean Algebra and Simplification
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292 Digital Electronics(a) Since bo
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298 Digital ElectronicsFurther Read
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300 Digital Electronicslogic functi
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302 Digital Electronics3. In the ca
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304 Digital ElectronicsD C B AProgr
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306 Digital Electronicsa GAL device
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308 Digital Electronicslarge memory
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310 Digital ElectronicsA B C D EHar
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312 Digital ElectronicsSolution(a)
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314 Digital ElectronicsInputs(n)(k)
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316 Digital ElectronicsABCiSCoFigur
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318 Digital ElectronicsAA 1 0B1B000
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320 Digital ElectronicsA1A0B1B0O/P-
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322 Digital ElectronicsProgrammable
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324 Digital ElectronicsCDAB00 01 11
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326 Digital ElectronicsABCDP Q R SF
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328 Digital ElectronicsFigures 9.23
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330 Digital ElectronicsInputsGlobal
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332 Digital ElectronicsDQO/P4-input
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334 Digital Electronicsthat have ev
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338 Digital ElectronicsDesign Entry
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340 Digital Electronicsbraces to de
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342 Digital ElectronicsCLK120VccI02
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348 Digital ElectronicsCentral Swit
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350 Digital ElectronicsTable 9.6Sal
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352 Digital ElectronicsQSA1A2A3A4A5
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354 Digital Electronics3. Determine
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10Flip-Flops and Related DevicesHav
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11Counters and RegistersCounters an
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Counters and Registers 415Table 11.
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Q 00Counters and Registers 4171JQ 0
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Counters and Registers 421'1'JPrQ A
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Counters and Registers 42311.5 Sync
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Counters and Registers 427Presettab
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Counters and Registers 429Clk(D)Q 0
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Counters and Registers 431Input AAO
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Counters and Registers 433ClockA-Ou
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Counters and Registers 435PLP3 P2 P
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Counters and Registers 437+V CCGNDU
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Counters and Registers 441The circu
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Counters and Registers 445CX (C) 1B
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Counters and Registers 447Figure 11
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Counters and Registers 449to the dr
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Figure 11.43 Logic diagram of IC 74
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Counters and Registers 45911.13 Shi
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Counters and Registers 461Clock-Inp
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Counters and Registers 4631JFClockC
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Counters and Registers 465R0(1)R0(2
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Counters and Registers 467(9)CLK C1
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Counters and Registers 4711OutputCJ
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12Data Conversion Circuits - D/Aand
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Data Conversion Circuits - D/A and
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{Data Conversion Circuits - D/A and
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526 Digital ElectronicsAddress BusM
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528 Digital Electronicsyear 1973. I
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530 Digital Electronicsto the addre
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532 Digital ElectronicsDemultiplexe
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534 Digital Electronicscounter and
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536 Digital ElectronicsOperationReg
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538 Digital Electronics13.6.1.2 Pow
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540 Digital Electronics13.7 Program
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542 Digital ElectronicsX1X2RESET OU
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544 Digital ElectronicsTable 13.3Si
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{{546 Digital ElectronicsSystem Dat
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{548 Digital ElectronicsBus Interfa
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550 Digital ElectronicsData Registe
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552 Digital ElectronicsBarrelShifte
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554 Digital ElectronicsSequencer an
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556 Digital Electronics64-bit inter
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558 Digital Electronicsfrom the Pen
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560 Digital ElectronicsPentium bran
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562 Digital Electronicsfor microcom
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564 Digital Electronics4. Briefly d
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566 Digital ElectronicsROMEEPROMRAM
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568 Digital ElectronicsFromSensorsT
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570 Digital ElectronicsThe digital-
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572 Digital Electronicsare embedded
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574 Digital Electronicscomprises on
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576 Digital Electronics14.3.2 Mappi
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578 Digital ElectronicsRegister-1Re
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580 Digital ElectronicsYet another
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582 Digital ElectronicsT2/P1.0T2EX/
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584 Digital Electronics14.5.1.8 68H
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586 Digital ElectronicsPA7/PAI/OC1P
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588 Digital ElectronicsPeripheral-r
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*590 Digital ElectronicsPP3/PW3PP4P
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592 Digital Electronicssignal-proce
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594 Digital ElectronicsV CCMicrocon
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596 Digital ElectronicsV CCI/O PinI
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598 Digital Electronicsdp1234567abc
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600 Digital ElectronicsV CC3V CC2Mi
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602 Digital ElectronicsReview Quest
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15Computer FundamentalsThis chapter
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Computer Fundamentals 607Secondary
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Computer Fundamentals 60915.3.3 Cla
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Computer Fundamentals 611CPURegiste
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Computer Fundamentals 613SelectData
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Computer Fundamentals 615DataInputI
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Computer Fundamentals 619as in the
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Computer Fundamentals 6211MUX1RAS1C
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Computer Fundamentals 623CLKCentral
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Computer Fundamentals 6251AddressIn
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Computer Fundamentals 627Row-0+V CC
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Computer Fundamentals 629erasabilit
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Computer Fundamentals 631code conve
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Computer Fundamentals 633AB 3Addres
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Computer Fundamentals 635and RAM-2
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Computer Fundamentals 637A 0 A 1 A
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Computer Fundamentals 63912 34 5678
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Computer Fundamentals 64115.8.2.1 I
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Computer Fundamentals 64315.9.1 Inp
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Computer Fundamentals 645The plasma
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Computer Fundamentals 647the disk s
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Computer Fundamentals 649The read o
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Computer Fundamentals 6512. A certa
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654 Digital ElectronicsFault detect
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656 Digital Electronics16.1.2.1 Ope
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658 Digital ElectronicsI 1456I 2121
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660 Digital ElectronicsClk-11Clk1D1
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662 Digital Electronicsthe clock si
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664 Digital ElectronicsSolution•
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666 Digital Electronics16.6.1 Advan
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670 Digital ElectronicsTriggerFigur
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672 Digital ElectronicsSignalSADC M
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674 Digital Electronics16.12.1.2 Ve
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678 Digital ElectronicsProbe BodyOs
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680 Digital ElectronicsTime BaseOsc
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682 Digital ElectronicsThe resoluti
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684 Digital ElectronicsI/PSamplerLP
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686 Digital ElectronicsReferenceOsc
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688 Digital ElectronicsFrequencyCon
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690 Digital Electronicssynthesizer
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692 Digital Electronicsto indicate
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694 Digital Electronics16.17.2.4 Cl
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696 Digital Electronicshaving a sam
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698 Digital Electronicsthe monitor
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700 Digital Electronicsetc., are th
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704 Digital Electronics(c) accuracy
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Index1’s complement 5, 610’s co
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Index 709A/D converter terminology
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Index 711Binary-to-hex conversion 1
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Index 713CoolRunner 347-8Counter ty
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Index 715Encoder 280-3EPROM 612, 62
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Index 717Hybrid computer 608Hystere
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Index 719Logic gates (Continued)NAN
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Index 721Multivibrator 357-71astabl
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Index 723Power supply decoupling 14
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Index 725Serial-in serial-out shift
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Index 727UP/DOWN counters 425-6US A
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