MR280E Digital Electronics Experiment Box Educational Equipment for Schools Instructional Package Electrical Installation Lab Product introduction: Digital electric circuit learning machine provide various signal source, front side print character wiring, reverse side install the component, all the signal source frequency meter are constituted by CPLD chip and double-side board, all the component adapt high quality product, improve the whole machine quality. Because the component are installed on the reserve side, so it can reduce and avoid the possibility of man-made damage. Product characteristic: easy to operation, durable, experiment project flexible, it easy to carry out various the digital simulation experiment. This product is suitable for the electronic technique teaching of institutions of higher learning and various vocational-technical school. System content 1. Power supply: AC input: 220V±10% , 50HZ DC output: ±12V/200mA, 5V/2A 2.Manual monopulse electric circuit two group: it can output the positive and negative pulsed in the meantime, pulse amplitudes is TTL electrical level. 3.Continuous pulses one group: output is TTL electrical level. Fixed frequency impulse source: 1HZ,1KHZ,10KHZ,100KHZ,1MHZ 4. Six- bit high accuracy digital frequency meter, measuring range: 0-9.9999MHZ error<1HZ ( design by CPLD chip ) 5. The output and display of logic level. A Eight- bit independent logic level switch: it can output “0”,“1” electrical level ( it is positive logic. B The logic electrical level constituted by eight- bit red LED and drive electric circuit 6. Nixie tube display A Four-bit BCD code decode display electric circuit constituted by LED nixie tube. B One-bit eight segment nixie tube, pin totally lead out, it used for nixie tube experiment. 7.21 eight core, fourteen core, sixteen core, twenty core, twenty-eight core and other circular hole socket. It can meet various IC chip. 8. Four each resistance value potentiometer 9. 30 Regular size resistance-capacitance Recommended experiment project 1.The parameter testing and using of TTL integrated logic gate 2.The testing of CMOS integrated logic gate 3. The logic function experiment of gate electric circuit 4. Common combinations logic function component testing 5. Half adder, full adder and logical operation experiment 6. Seven people voting circuit and blood type detection electric circuit 7. Trigger function testing 8. JK, D trigger logic function and main parameter testing 9. Three state output trigger and latch 10. Asynchronization binary system counter experiment 11. Synchronization binary system counter experiment 12. Shifting register function testing 13. Count, decode, display electric circuit experiment 14. 555 integrated electric circuit and application 15. Wave generation and monostabillity trigger 16,. The design of sequence detector 17. Manual intervention traffic light controller 18. Digital electronic clock design 19. Digital frequency meter 20. Automobile tail light control experiment