ScienTECH DB15 Operating Manual Download Page 8 | Manualshive

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DB14

Scientech Technologies Pvt. Ltd.

8

Truth Table

Figure 5

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Summary of Contents for DB15

Page 1: ...15 Operating Manual Ver 1 1 An ISO 9001 2000 company 94 101 Electronic Complex Pardesipura Indore 452010 India Tel 91 731 2570301 02 4211100 Fax 91 731 2555643 e mail info scientech bz Website www scientech bz Toll free 1800 103 5050 ...

Page 2: ...DB14 Scientech Technologies Pvt Ltd 2 ...

Page 3: ...nvironment Friendly It is mandatory that service engineers use lead free solder wire and use the soldering irons upto 25 W that reach a temperature of 450 C at the tip as the melting temperature of the unleaded solder is higher than the leaded solder BCD to Seven Segment Decoder DB15 Table of Contents 1 Introduction 4 2 Theory 5 3 Experiment 7 Study of BCD to 7 segment Decoder Using IC 74LS47 4 Da...

Page 4: ... Gates DB02 Universal Gate NAND NOR DB03 EX OR Gate Implementation DB04 Demorgan s Theorem DB05 EX OR Gate Application DB06 Code Conversion Binary to Gray Gray to Binary DB07 Code Conversion BCD to Excess 3 code DB08 Binary Adder Subtractor DB09 Encoder Decoder DB10 Multiplexer Demultiplexer DB11 Flip Flops R S D J K T DB12 Shift Register 4 bit SIPO DB13 4 Bit Synchronous Binary Counter DB16 Digit...

Page 5: ... their positions The weights in the BCD codes are 8 4 2 1 For example the bit assignment 0110 can be interpreted by the weights to represent the decimal digit 6 because 0 8 1 4 1 2 0 1 6 A seven segment decoder driver is an IC decoder that can be used to drive a seven segment indicator There are two types of decoder drivers corresponding to common anode and common cathode indicators Each decoder d...

Page 6: ...gardless of the level of any other input It must be at high logic or open to get functions for 0000 to 1111 RBO BI Ripple Blanking Input The ripple blanking input must be open or high if blanking of a decimal zero is not desired If it is low it will blink decimal zero LT Lamp Test When blanking input ripple blanking output RBO BI is open or held high and a low is applied to this input all segment ...

Page 7: ...f BCD to 7 Segment Decoder using IC 74LS47 Equipments Needed 1 Digital board DB15 2 DC Power Supply 5V from external source or ST2611 Digital Lab 3 Digital Multimeter or Digital Lab ST2611 Logic Diagram Truth Table Logic 1 5V Logic 0 Gnd 74LS47 Logic Diagram Figure 4 ...

Page 8: ...DB14 Scientech Technologies Pvt Ltd 8 Truth Table Figure 5 ...

Page 9: ...ch on the Power Supply 2 Observe decimal output on common anode display given on the experiment board Outputs of individual pins can be seen on logic probe or on LED display of Digital Lab ST2611 or on multi meter 3 Connect different combination of inputs as shown in truth table and prove truth table 4 Connect logic 0 to BI RBO input logic 1 to RBI and LT input 5 Repeat step 5 6 and observe the re...

Page 10: ...ies Pvt Ltd 10 Data Sheet Pinout Diagram Pin 16 Vcc 5V A B C D BCD Inputs RBI Ripple Blanking Input or LT Lamp Test Input RBO BI Blanking Input or Ripple Blanking Output a to g Outputs Numerical Designations Resultant Displays ...

Page 11: ...DB14 Scientech Technologies Pvt Ltd 11 Logic diagram of IC Truth Table ...

Page 12: ...ther party d Any attempt is made to service and modify the instrument 3 The non working of the product is to be communicated to us immediately giving full details of the complaints and defects noticed specifically mentioning the type serial number of the product and date of purchase etc 4 The repair work will be carried out provided the product is dispatched securely packed and insured The transpo...

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