digital ic tester-ppt
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Transcript of digital ic tester-ppt
![Page 1: digital ic tester-ppt](https://reader034.fdocuments.us/reader034/viewer/2022050615/55167da9497959f5148b4ac0/html5/thumbnails/1.jpg)
DIGITAL IC TESTER AND RECOGNIZER
A Mini Project Report on :
CHRIS MANOJ Prof. K. SUBBA RAO07N71A0412 Head , Dept. of E.C.E.
By : Under the esteemed guidance of :
DRK-IST. DRK-IST.
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Objective
• This project intends to test a, IC under consideration, is in a working condition or not.
• This makes the task of debugging the faulty circuit easier rather than checking the circuit on the whole .
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INPUTS AND OUTPUTS
• INPUTSPower SupplyIC to be Tested. Keypad Entry.
• OUTPUTSLiquid Crystal Display.
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HARDWARE
• Components for a regulated power supply.• Microcontroller AT89S52.• Liquid Crystal Display.• IC to be Tested (Base).• Keypad.
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Components for a Regulated Power Supply
• Transformer
• Rectifier
• Filter
• Voltage Regulator
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Software Used:
• Keil Compiler : Front end
• Pro-load
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Design Requirements
• Input pins to take data from IC• Output pins to display data on LCD• Logic Unit and ALU -> Control Unit• Program Memory(ROM)• RAM• Timers .To have all these in one socket we go for a microcontroller
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Which Microcontroller ?
• To select a Microcontroller we have to think of the following factors :
SpeedPower ConsumptionCostEfficiency So, we go for AT89S52
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Features of AT89s52• 8K Bytes of Re-programmable Flash Memory. • RAM is 256 bytes.• 4.0V to 5.5V Operating Range.• Fully Static Operation: 0 Hz to 33 MHz’s• 32 Programmable I/O Lines.• Three 16-bit Timer/Counters.• Eight Interrupt Sources.• Full Duplex UART Serial Channel.• Low-power Idle and Power-down Modes.• Interrupt recovery from power down mode.• Fast programming time.• Flexible ISP programming (byte and page mode).
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PIN DIAGRAM of AT89s52
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LIQUID CRYSTAL DISPLAY
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LCD INTERFACE WITH MICROCONTROLLER
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INTERFACING THE KEYPAD TO MICROCONTROLLER
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BLOCK DIAGRAM
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IC that were TESTED
• 74LS00- QUAD 2-INPUT NAND GATE
• 74LS02- QUAD 2-INPUT NOR GATE
• 74LS09 QUAD -2 INPUT AND GATE
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74LS00- QUAD 2-INPUT NAND GATE
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74LS02- QUAD 2-INPUT NOR GATES
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74LS09 QUAD -2 INPUT AND GATE
INPUT INPUT OUTPU
T
A B AB
L L L
L H L
H L L
H H H
Function Table :
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SCHEMATIC DIAGRAM
DIGITAL IC TESTER AND RECOGNIZER :
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CODING PART
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DUMPING THE HEX FILE INTO THE MICROCONTROLLER
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FUTURE SCOPE
• The project can be extended to work for more 16 pin ICs by changing some hardware and coding.
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ICs that can be tested and recognized:
• 4070- Quad 2-Input Exclusive OR Gate • 7266- Quad 2-Input Exclusive NOR Gate • 4073- Triple 3-Input AND Gate • 4075- Triple 3-Input OR Gate •4082- Dual 4 input And gate • 4052- 4 X 2 Multiplexer • 4051- 8 X 1 Multiplexer • 4053- 2x1 Multiplexer • 7485- 4 bit binary comparator • 74194- 4 bit bidirectional Shift Register
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THANK YOU - CHRIS MANOJ