DIGITAL ELECTRONICS LABORATORY

Transcription

1 Modular Digital Electronics Training System is a modular course covering the fundamentals, concepts, theory and applications of digital electronics. It is designed as a starter course to provide new students with a good solid grounding in this area, before going on to specialized studies. The digital electronics training program is ideal for basic and intermediate advance studies in this field. The courseware is the compilation of the experiments from various good reference books version. The training system consists of a digital lab trainer (digital electronics lab base unit) and the plug-in modular boards that match the experiments. Hundreds over experiments are provided which cover fundamental digital electronics theory, combinational digital electronics, sequential digital electronics, A/D, D/A and etc. The digital electronics lab base unit provides the power supplies, basic instrumentation and accessories that are required to support the training module boards. Modular Digital Electronics Training System consists of : Digital Lab Trainer (Digital Electronics Lab Base Unit), MDETS-BS Digital Electronics Experiments Modules Boards, MDETS-EXP MODULAR DIGITAL ELECTRONICS EXPERI- MENTS SETUP DIGITAL LAB TRAINER MDETS-BS + DIGITAL ELECTRONICS EXPERI- MENTS MOD BOARDS MDETS-EXP PLACE THE MOD BOARDS ON THE BASE UNIT OVER HUNDREDS OF DIGITAL ELECTRONICS EXPERIMENTS CAN BE CARRIED OUT.

2 DIGITAL LAB TRAINER (DIGITAL ELECTRON- ICS LAB BASE UNIT), MDETS-BS 15. Built-in Digital Multimeter: Display: 3.5 digit LCD DC Voltage: 200 mv / 2000 mv / 20V / 200V / 1000V DC Current: 200μA/2000μA/200mA/10A 16. Overload protection with fuse 17. Input supply: 240VAC/50Hz or 110VAC/60Hz DIGITAL ELECTRONICS EXPERIMENTS MOD- S, MDETS-EXP SERIES SPECIFICATIONS 1. Solderless Breadboard Interconnected nickel plated contact with1680 tie-points (removable type) 2. DC Power Supply: Variable ±1.5~ ±15VDC/500mA Fixed +5VDC/1A Fixed -5VDC/1A Fixed ±12V/500mA 3. Sixteen (16) Bits Buffered Output LEDs 4. Sixteen (16) Bits Data Input Switches with debounced circuit 5. Two (2) Pulse Switches with debounced circuit 6. Pulse/Clock Signal Generator (Variable) : Frequency Range: 1Hz ~ 1MHz ( 6 ranges) Amplitude: TTL levels Fan Out: 10 TTL Load 7. Four(4) toggle data switches 8. RC configurable timer output (on-board) 9. Intelligent Logic Probe with 7 Segment Indicator 10. Connectors Type: Standard single core jumper sockets (turn-pins) 2mm sockets 11. Solid portable brief case 12. Four (4) digits 7-segment LED display with BCD decoder drivers. 13. Built-in 8-Ohm Speaker 14. Variable Resistor (Potentiometer): 1KΩ / 100KΩ / 1MΩ The Digital Electronics Experiments Modules are fitted to the Digital Lab Trainer to carry out various experiments. The modules allow students to investigate a range of analog electronics topics. Students investigate each topic with hands on experimentation, circuit construction and evaluation tasks which are provided in the Digital Electronics Experiments Modules Student Workbook. Users are able to perform hands-on practical exercises on every module with reference to the accompanied experiment workbook & instructor s guide. Faults switches are incorporated on the experiment modules for faults simulation & troubleshooting/fault-finding practices. FUNDAMENTAL OF DIGITAL LOGIC 1 MOD- NOT Gate To understand the meaning of TTL compatible. To learn how to interpret data sheet specifications. To recognize the electronic representation of a binary state and observe the proper operation of an inverter.

3 OR Gates & AND Gates To verify experimentally the proper operation of an OR gate. To verify experimentally the proper operation of an AND gate. NOR Gates To verify experimentally the expected operation of a NOR gate. To use a NOR gate as an inverter. To demonstrate that the NOR gate is an universal gate. NAND Gates To verify experimentally the expected operation of a NAND gate. To utilize a NAND gate as an inverter. To demonstrate that the NAND gate is an universal gate. Exclusive-OR Gates To investigate the logical properties of the exclusive-or function. To implement a number of different logic functions by means of exclusive-or gates Exclusive- OR Gates Boolean Algebra Fundamental Operations To utilize the fundamental operations of boolean algebra in logic-circuit measurements. To investigate the equivalence of boolean expressions experimentally. Boolean Algebra Theorems To verify some of the laws and theorems of boolean algebra by measurement. To use laws an theorems from boolean algebra to simplify boolean expressions. K-map Simplification To simplify and realize the logical expression using K-map. COMBINATIONAL OF DIGITAL LOGIC 1 MOD- Adders To investigate the logical properties of a halfadder. To investigate the logical properties of a fulladder. To construct a full-adder using half-adders. To use exclusive-or gates for the implementation of half-adders and full-adders. Adder-Subtracter To use a dual 4-input multiplexer to construct a full-adder. To use a dual 4-input multiplexer as a subtracter. COMBINATIONAL OF DIGITAL LOGIC 2 MOD- Digital Comparator To study the digital comparator circuit Parity Generator / Checker To study parity Generator / checker circuit Binary Numbers To learn the binary number system. To learn binary-to-decimal number conversions. To learn decimal-to-binary number conversions. Binary-to-Gray / Gray-to-Binary Converter To study the binary-to-gray / gray-to-binary converter circuit Octal-to-Binary Encoder To study the octal-to-binary Encoder circuit. COMBINATIONAL OF DIGITAL LOGIC 3 MOD- 4-Input Multiplexer To observe the proper operation of a multiplexer. To verify the use of a multiplexer as a function generator. 1-Of-4 Decoder To verify the operation of a 1-of-4 decoder. To use a 1-of-4 decoder as a demultiplexer. To determine the effect of an open input. Priority Encoders To verify the operation of an 8-input encoder. To verify the operation of a 10-input (decimal) encoder. To learn the significance of priority. To determine the effect of an open input. Seven-Segment LEDs and Decoder Drivers To verify experimentally the characteristics of a seven-segment LED array. To properly connect a BCD-to-seven-segment decoder driver to a seven-segment LED array. 4-Bit Arithmetic Logic Unit To verify the logic capabilities of an MSI arithmetic logic unit. To use an arithmetic logic unit to perform binary addition and subtraction. To use an arithmetic logic unit for comparison. Decimal to BCD Encoder To study the proper operation of a decimal-to- BCD Encoder (74147) BCD-to-Decimal Decoder / Driver To study the proper operation of an 8421 BCDto-decimal decoder.

4 SEQUENTIAL OF DIGITAL LOGIC 1 MOD Flip-Flops To construct an RS flip-flop using NAND gates. To verify by experiment the logical properties of a JK master-slave flip-flop. Digital-Clock Oscillator To construct a crystal oscillator suitable for use as a digital clock. 4 - Phase Clock To learn how to use a '139 to generate nonoverlapping clock pulses. To verify that the clock waveforms generated using '139 are "glitch" free. SEQUENTIAL OF DIGITAL LOGIC 2 MOD Shift Registers To construct a shift register using flip-flops. To shift data into register serially. To shift data into register in parallel. To demonstrate the shift-right and shift-left functions of an MSI universal shift register. Ring Counter To use an MSI shift register to construct a ring counter. To use a power on reset circuit to parallel-load any desired number into a shift register. Binary Counters To construct fundamental binary counters. To use AND gates for binary-counter decoding. To use an MSI decoder-driver. SEQUENTIAL OF DIGITAL LOGIC 3 MOD Up-Down Counters To demonstrate the proper connections for a binary up counter. To demonstrate the proper connections for a binary down counter. To connect and operate an MSI up-down counter. Presettable Counters To construct a presettable counter using an MSI up-down counter. To demonstrate the presettable up count sequence. To demonstrate the presettable down count sequence. Shift Counters To construct a three-flip-flop shift counter. To observe the illegal count sequence in a mod-5 and a mod-6 shift counter. To construct decoding gates for a three-flip-flop shift counter. Random Access Memory (RAM) To learn memory addressing. To write data into a RAM. To read data from a RAM. TIMING OF DIGITAL LOGIC 1 MOD Astable Multivibrator To learn the operating characteristics of an astable multivibrator. To verify experimentally the operating characteristics of a 555 timer used in the astable mode. Monostable Multivibrators To learn the operating characteristics of a monostable multivibrator. To verify experimentally the operating characteristics of a commercially available IC monostable multivibrator. Schmitt Trigger To study the proper operation of the Schmitt trigger circuit using Schmitt trigger ICs. DATA CONVERSIONS 1 MOD Analog-to-Digital Conversion To study the analog-to-digital conversion of analog input signal and display on the LEDs. Digital-to-Analog Conversion To study the digital-to-analog conversion of the digital input to display the analog signal. FAULT SWITCHES

5 COURSEWARE A set of student laboratory manuals consists of student workbooks and instructor s guide are provided, whereby the student workbook provides supporting theory and experiments covering the full range of Digital Electronics Experiment Modules and the instructor s guide provides the answers to the experiments and technical information. COMPUTER AIDED LEARNING SOFTWARE PACK- AGE With the addition of a PC to a student workstation, the CAL software package can be installed, where the student can learn the theory and examples from the PC. These software package support the studies of students as they work through the Experiment Modules. Each CAL software package comprises theory, examples and applications of the related topics. Screenshot for shift register COURSEWARE AND ACCESSORIES 2mm Connecting Leads Set. Student Workbook. Instructor s Guide. Computer Aided Learning Software IC Data Sheet in CD Power Cord Screenshot for shift register Screenshot for combinational logic Subject to change without notice.