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20 - EE200 DIGITAL LOGIC CIRCUIT DESIGN Class Notes CLASS...

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EE200(class EE200(class 9-2&3 2&3 2&3) Prof. M.M. Prof. M.M. Dawoud Dawoud Dawoud 92 EE200 DIGITAL LOGIC CIRCUIT DESIGN Class Notes CLASS 9-2&3 The material covered in this class will be as follows: Programmable logic devices. Read Only Memory (ROM). Programmable Logic Array (PLA). Programmable Array Logic (PAL). Programmable Logic Devices (PLD’s) Introduction: Integrated circuits ; MSI and PLD packages. 1. As studied before, Integrated circuit categories are: SSI, MSI, LSI, and VLSI. MSI devices have a complexity of approximately 10 to 1000 gates in a single package. 2. Several combinational circuits are available in MSI form, e.g. adders, subtractors, comparators, decoders, encoders, multiplexers,… etc. 3. Programmable Logic Devices are IC's with internal logic gates (arrays of AND gates and OR agates) connected through fuses to establish a pattern of connections. 4. Three types of PLD's are studied here: a. Programmable Read Only Memeory (PROM) b. Programmable Logic Array (PLA) c. Programmable Array Logic
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