use the following data sheet to answer the following questions: http://www.ti.co
ID: 2989967 • Letter: U
Question
use the following data sheet to answer the following questions:
http://www.ti.com/lit/ds/symlink/sn74hc32.pdf
1. The number of OR gates per package is _________.
2. The gates need an external power source to operate. Most always, pin 7 of the package is defined as (pin identifier) _____ and should be connected to ______ volts.
3. Most always, pin 14 of the package is defined as (pin identifier) _____ and should be connected to ______ volts.
4. Vcc should never exceed ______ volts.
5. The Boolean equation for the OR gate shown in the data sheet is _________.
6. The DeMorgan form is __________________________.
7. The gate output Y should never source more than _________ mA (continuous).
8. The gate output Y should never sink more than _________ mA (continuous).
9. A logic high state is considered when the output Y is _______ volts.
10. A logic low state is considered when the output Y is _______ volts.
11. Examine the switching characteristics table. tPLH = logic low --->? logic high transition time, and tPHL = logic high ---> ? logic low time. The test conditions are given as shown below with a load resistance and load capacitance. RL is fixed, but CL is varied. Predict what would happen to the transition times if the load capacitance was increased to 100pF.
12. Note the package suffix designation such as 74LHC32N. N denotes a ________ package. The space between pin centers is ______ inches.
13. Note the package suffix designation such as 74HC32D. D denotes a ________ package. The space between pin centers is ______ inches.
14. Could the 74HC32D be used in the breadboard? ____. Explain:
Explanation / Answer
1. 4 gates/chip
2. GND, 0V
3. +Vcc, +5V
4. +5V
5. A+B , If inputs are A,B
6. A+B=>(A'.B')'
7. +25mA
8. +50mA
9. +Vcc
10. 0V
11. 115-135 nsec, If CL is connected it is increses.
12. plastic dual in-line package (0.1mm)
13. plastic small outline package (0.05mm)
14. No, beaucse the distance between the pins are not same as the distance between dots on bread board
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