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comparator using 2 xor gates
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Applications of "XOR Gate"Abstract: comparator using 2 xor gates Maxim/Dallas > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS Keywords: comparators, exclusiveOR gates, XOR gates, frequency doublers Aug 27, 2004 APPLICATION NOTE 3327 Simple Circuit Doubles Input Frequency A simple circuit consisting of a comparator and an exclusiveOR gate is sufficient to , , C1, and comparator U1, the delay circuit drives the XOR gate's second input. A resistive divider , , pin 4 of the XOR gate is low but pin 5 is high, due to signal inversion by the comparator. The XOR 
Maxim Integrated Products Original 


74573Abstract: 74574 Bit Magnitude Comparator Quad 2Input XOR Gate Decade Counter 4Bit Binary Counter Monostable Multivibrator , Summary NAND Gates NOR Gates AND Gates OR Gates XOR Gates Buffers Inverters Interface Devices , Input NOR Gate Quad 2Input XOR Gate Octal DType FlipFlop Octal SR Latch 4Bit Binary Full Adder Hex , FlipFlop ( Master / Slave ) BCD to Decimal Decoder 4Bit Binary Counter Quad 2Input XOR Gate 7 , Input NAND Gate Hex Inverter Quad 2Input XOR Gate Quad 2Input OR Gate Dual 4Input OR Gate Triple 3 
 Original 


full subtractor circuit using xor and nand gatesAbstract: full subtractor circuit using nor gates clock & clear 4bit magnitude comparator quad 2input XOR gates 4bit true/complement elements 8 , hard macros (Multiplexors, AND gates, OR gates, XOR gates, etc.) require only one piece of the Logic , example, 3input gates are available with 0, 1, 2, and 3 inversion bubbles). The library also features , three input XOR (exclusiveor) and XNOR (exclusivenor, also known as equivalence) gates. Their names , AND gates and a 3input XOR gate can be packed into a single logic cell. 430 pASIC MACRO 
QuickLogic Original 


full adder circuit using nor gatesAbstract: free transistor equivalent book Design Using FPGAs 1 Example 1 â'" Switches and LEDs 6 Example 2 â'" 2Input Gates 11 Example 3 â , containing six different 2input gates. Example 2a will show the simulation results using Aldec ActiveHDL , ]), .or_(ld[2]), .xnor_(ld[1]), .xor_(ld[0]) ); MultipleInput Gates 15 Example 3 , Detector In this example we will design a 2bit equality detector using two NAND gates and an AND gate , contains over 75 examples including examples of using the VGA and PS/2 ports. Similar books that use VHDL 
Digilent Original 


74684Abstract: Multiplexer 74157 application primitive gates and registers using HDLs or schematics (i.e., create a gatelevel design). Although , logic. By default, the MAX+PLUS II Compiler synthesizes mutually exclusive logic with XOR gates. When , XOR gates that feed combinatorial logic cells, thus decreasing the number of product terms needed by each logic cell. However, XOR gates can create static timing hazards, so you should weigh the tradeoff between logic utilization and XOR gate usage. Figure 2. Figure 2. XOR Synthesis Resources Settings 
Altera Original 


A1020AAbstract: CNT4A Logic M odule Macros (e.g., m ost gates, latches, multiplexors)1 s o li. «0 II 2 CM , odule Macros (e.g., adders, wide Input gates)1 Parameter tpD Output Net Typical FO = 1 6.9 FO = 2 7.0 FO , AND B. 2. O rder of operators in decreasing precedence is: NOT, AND, XOR and OR. 3. Signals expressed , bit identity comparator 2bit magnitude comparator with enable 4bit magnitude comparator with enable 8 , Macros. T 4 6 1909 2lnput Gates (Module Count = 1) AND2 N 1 y 1 B AND2AJ 
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32 bit carry select adder in vhdlAbstract: Design Using FPGAs 1 Example 1 â'" Switches and LEDs 6 Example 2 â'" 2Input Gates 11 Example 3 â , different 2input gates. Example 2a will show the simulation results using Aldec ActiveHDL and Example 2b , multipleinput gates we can write the logic equation as . z , gates we can write the logic equation as . x(1) x(2) x(3) x(4) XOR 17 z Figure 3.5 , bit equality detector By using two XNOR gates and an AND gate we can design a 2bit equality detector as 
Digilent Original 


A1020AAbstract: Equivalent Gates TTL Equivalent Packages 20Pin PAL Equivalent Packages A10M20A 2,000 6,000 50 15 , FADD32 7 120 160 4bit identity comparator 8bit identity comparator 2bit magnitude comparator with enable ICMP4 2 5 JCMP8 MCMPC2 9 9 4bit magnitude comparator with enable , Overview The following illustrations show all the available H ard Macros. 2Input Gates (M odule Count = 1) 3Input Gates (M odule Count = 1, unless Indicated otherwise) (2 ) Indicates 2 
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A1020A 100P 
ATMEL CPLDAbstract: comparator using 2 xor gates can be difficult to fit for any device. By using the @Carry directive this comparator was broken up , Rev. 0805B08/99 1 Figure 1. Selecting the Keep Node Attribute Figure 2. Using the @Carry , either all or certain pins. Especially useful for logic that uses XOR gates such as comparators , design with multiple product terms for the flipflop reset signal(s). The output of the 2 , maximum bit width to use when synthesizing a logic function. For example, Figure 2 shows an ABEL file 
Atmel Original 

ATMEL CPLD comparator using 2 xor gates ATV2500B ATV750B 
21MUXAbstract: 74684 , you can describe that portion with primitive gates and registers using HDLs or schematics (i.e , logic with XOR gates. When the XOR Synthesis logic option is turned on, the MAX+PLUS II Compiler minimizes logic by creating new XOR gates that feed combinatorial logic cells, thus decreasing the number of product terms needed by each logic cell. However, XOR gates can create static timing hazards, so you should weigh the tradeoff between logic utilization and XOR gate usage. Figure 2. Figure 2 
Altera Original 

21MUX 74684 74157 
detail of half adder icAbstract: 2 bit magnitude comparator using 2 xor gates gate as the building block. A bitwise comparison of the two data streams is done using XOR gates and , ,SUM8 Figure 4. Block Diagram of a 12Bit Ripple Carry Adder Using 2Bit Adders A 12bit Ripple , Adder Using a GroupSize of 2 Bits where Gi = (Ai and Bi) and Pi = (Ai or Bi). The values of G i , using the basic elements SUB2WB and SUB2NC (2bit subtracter with no borrowout). This takes three , Bit Full BorrowLookahead Subtracter using 2Bit Subtracters It was mentioned before that we can build 
Cypress Semiconductor Original 

detail of half adder ic 2 bit magnitude comparator using 2 xor gates vhdl code for half adder 32 bit carry select adder code 2bit half adder circuit diagram of half adder FLASH370 
ATMEL CPLDAbstract: ATV2500B comparator was broken up into a chain of four 2bit comparators consisting of 16 product terms. CPLD , 8115 Figure 1. Selecting the Keep Node Attribute Figure 2. Using the @Carry Directive cific , for logic that uses XOR gates such as comparators, arithmetic logic Enable of you want to use the , (s). The output of the 2to1 multiplexer (net labeled MUX) is connected to the RST input of a 4 , directive indicates the maximum bit width to use when synthesizing a logic function. For example, Figure 2 
Atmel Original 

ATF1500 
vhdl code for 4 bit ripple carry adderAbstract: VHDL code for 16 bit ripple carry adder Note: P can be (A xor B ), but `OR' is easier to im 2 3 and G ) or (P 2 2 and P and P , , SUM0, and C2 are generated in Using a GroupSize of 2 Bits the first pass. All the other , building block. A15.8 A bitwise comparison of the two data EQCOMP8 streams is done using XOR , from. This variety provides the designer with are built using the concepts and final implementa , can be built n ADD components. All the 2n input bits are using to the MSB. A and B are the 
Cypress Semiconductor Original 

vhdl code for 4 bit ripple carry adder VHDL code for 16 bit ripple carry adder B9 datasheet diode r4 transistor b11 vhdl code for full adder 22V10 
IC of XNOR GATEAbstract: IC of XOR GATE (with 1inverted input) 2input NOR 2input NOR (with 1inverted input) 2input XOR 2input XOR , + VINPUT Figure 2. The inputs of the configurable logic gates have Schmitt trigger inputs with , AND8408/D Pulse Generation and Signal Conditioning Circuits Using Configurable Multifunction Logic Gates http://onsemi.com Prepared by: Jim Lepkowski ON Semiconductor APPLICATION NOTE , generation and signal conditioning circuits. Configurable logic gates are a low cost flexible IC that can 
ON Semiconductor Original 

IC of XNOR GATE IC of XOR GATE AND8408 ULLGA8 Package XOR schmitt trigger create pulse 
uses of magnitude comparatorAbstract: 2 bit subtracter true table bitwise comparison of the two data streams is done using XOR gates and each of the individual results , 12Bit Ripple Carry Adder Using 2Bit Adders A 12bit Ripple carry adder built using the ADD2WC , can implement the nbit adder using the 3bit group adder (ADD3WC) as opposed to a 2bit group adder , : 12Bit Full CarryLookahead Adder Using a GroupSize of 2 Bits The Cypress CPLD can access up to 16 , archsub2wb; FB2SUB12: 12Bit Full BorrowLookahead Subtracter using 2Bit Subtracters The block diagram 
Cypress Semiconductor Original 

uses of magnitude comparator 2 bit subtracter true table work.std_arith.all vhdl code for 8bit adder 37000TM 
32 bit carry select adder codeAbstract: 2 bit magnitude comparator using 2 xor gates the two data streams is done using XOR gates and each of the individual results are ORed together to , ,SUM8 Figure 4. Block Diagram of a 12Bit Ripple Carry Adder Using 2Bit Adders A 12bit Ripple , Bit Full CarryLookahead Adder Using a GroupSize of 2 Bits The Cypress CPLD can access up to 16 PTs for , FC2ADD12 and is shown in Figure 12. The FB2SUB12 is built using the basic elements SUB2WB and SUB2NC (2 , Adders/Subtracters Table 2 discusses the resource utilization for 24bit and 32bit adders using 2 
Cypress Semiconductor Original 

16 bit ripple adder 32 bit carry adder vhdl code 16 bit carry select adder 32 bit adder 32 bit carry select adder in vhdl circuit diagram of full adder 
vhdl code for 4 bit ripple carry adderAbstract: VHDL code for 16 bit ripple carry adder the two data streams is done using XOR gates and each of the individual results are ORed together to , ,SUM8 Figure 4. Block Diagram of a 12Bit Ripple Carry Adder Using 2Bit Adders A 12bit Ripple , Bit Full CarryLookahead Adder Using a GroupSize of 2 Bits The Cypress CPLD can access up to 16 PTs for , FC2ADD12 and is shown in Figure 12. The FB2SUB12 is built using the basic elements SUB2WB and SUB2NC (2 , Adders/Subtracters Table 2 discusses the resource utilization for 24bit and 32bit adders using 2 
Cypress Semiconductor Original 

32 bit ripple carry adder vhdl code vhdl code of ripple carry adder vhdl code comparator EQCOMP12 
Actel A1020Abstract: A1020 Y '"46â'"19â'"11 Single Logic Module Macros (e.g., most gates, latches, multiplexors)1 Parameter Output Net FO = 1 FO = 2 , Dual Logic Module Macros (e.g., adders, wide Input gates)1 Parameter Output Net FO = 1 FO = 2 FO = 3 FO , fast adder 7 Comparators ICMP4 5 4 bit identity comparator 2 ICMP8 9 8 bit identity comparator 3 MCMP16 93 16 bit magnitude comparator 5 MCMPC2 9 2 bit magnitude comparator with enables 3 MCMPC4 18 4 , the available Hard Macros. 2lnput Gates (Module Count = 1) T4619ÃÃ > anc and: ki *c and: NAND2 
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Actel A1020 A1020 Y Actel A1020A DLM8 C3254 A1010 A1010/A1010A A1020/A1020A GG00214 
pn sequence generator using d flip flopAbstract: pn sequence generator using jk flip flop . AT40K FPGAs range in size from 5,000 to 50,000 usable gates, with 2,048 to 18,432 bits of 4 , .27 Comparator , .70 Logic Gates , .76 Component Generators Handbook 1 0373f.fm Page 2 Tuesday, May 25, 1999 8:59 AM Table , .112 2 Component Generators Handbook 0373f.fm Page 3 Tuesday, May 25, 1999 8:59 AM 
Atmel Original 

pn sequence generator using d flip flop pn sequence generator using jk flip flop FULL SUBTRACTOR using 41 MUX full subtractor circuit using xor and nand gates verilog code for 16 bit carry select adder verilog code pipeline ripple carry adder 
3input xnorAbstract: 32 data input multiplexer explanation NAND Gates AND Gates OR 2 PSLI Macro Library 2448A12/01 PSLI Macro Library , input OR with 4 inputs inverted 1x1 XO2 2input XOR 1x1 XO3 3input XOR 1x1 XO4 4input XOR 1x1 XN2 2input XNOR 1x1 XN3 3input XNOR 1x1 XN4 4 , Gates NOR Gates XOR Inverters INV Constants Multiplexers Latches LD 3 2448A12/01 , Programmable System Level Integrated (PSLI) library of components can be divided into 2 types of macros 
Atmel Original 

AT40KAL AT94K 3input xnor 32 data input multiplexer explanation 1 bit full adder 1INPUT NAND SCHMITT TRIGGER 
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