Introductory Digital Concept n Digital and Analog Quantities

Introductory Digital Concept n. Digital and Analog Quantities n. Binary Digits, Logic Levels, and Digital Waveforms n. Basic Logic Operations n. Basic Logic Functions n. Digital Integrated Circuits n. Testing and Troubleshooting Instruments

Logic Levels Example VH(max) VH(min) High (binary 1) qชวงของ High valuesคอ 5โวลท Uncertain VL(max) VL(min) Low (binary 0) qชวง Low values คอ 00. 8โวลท qถาแรงดน 3. 5 โวลท แสดงวาเปน High แทนดวย 2 -

Digital Waveforms The Pulse Rise time Fall time Amplitude Pulse width

A Digital Waveform Carries Binary Information Timing diagrams ����� digital waveform ���������� waveform������ � ������������ 1 0 0 1 1

Basic Logic Operation NOT AND OR Exclusive-OR ��������� 1

The Arithmetic Function n Adder ����������� 2 ������

The Data Selection Function

The Storage Function n The Storage Function

Digital Integrated Circuits Integrated Circuit (IC)���������������������� ������� 1

Digital Integrated Circuits IC Packages Dual-in-Line Package (DIP) Small-outline IC (SOIC)

Digital Integrated Circuits IC Packages SOIC PLCC LCCC Flat pack

Pin Numbering

Testing and Troubleshooting Instruments Oscilloscope n Logic Analyzer n Logic probe n Power Supply n Function Generator n Digital Multi-meter n

Logic Probe

End

DIP Package