d07hwk4final

d07hwk4final - ECE2022 HOMEWORK # 4 D07 Name : ECE Box...

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Unformatted text preview: ECE2022 HOMEWORK # 4 D07 Name : ECE Box Number: To make the grading easier, please draw a rectangle around each. final answer, where appropriate. Number your solutions just like below! This assignment is due Thursday, April 12, bring to class. Problem 1 u 20 pts Attached to this homework you will find specification sheets for the DM74ALSOO Quadruple 2—lnput NAND gate and the SN7442 4-Line to 10—Line Decoder. In the circuit we are designing, many 7442 inputs will have to connect to each 74ALSOO output and many 74ALSOO inputs will have to connect to each 7442 output. A major influence on our design will be exactly how many inputs can share an output in each case. (a) Find and write down the following important values for the two chips: . DM74ALSOO [OH = . DM74ALSOO 10L = . DM74ALSOO 11H 2 . DMMALSOO 11L = . SN7442 [OH = o SN7442 10L = . SN7442 11H 2 . SN7442 11L 2 (b) Show the computation of the maximum number of SN7442 gate inputs that can be driven High from a single DM74ALSOO. (c) Show the computation of the maximum number of SN7442 gate inputs that can be driven Low from a single DM74ALSOO. (d) What then is the maximum number of SN7442 gate inputs that can be reliably driven by single DM74ALSOO? (e) Show the computation of the maximum number of DM74ALSOO gate inputs that can be driven High from a single SN7442. (f) Show the computation of the maximum number of DM74ALSOO gate inputs that can be driven Low from a single SN7442. (g) What then is the maximum number of DM74ALSOO gate inputs that can be reliably driven by single SN7442? Problem 2 - 25 pts 50 8V 160 Ohms 40 E V ‘_4 out 5 E .5 20 E Q 10 V. In 0 T O 2 4 6 8 10 T Drain to source voltage [V] For the given MOSFET circuit and associated drain current characteristic and a threshold voltage of VTH = IV: (a 5 pts) What is the intercept of the load line with the Drain to Source voltage (X) axis?. (b 5 pts) What is the intercept of the load line with the Drain current (Y) axis?. (0 10 pts) Fill our the following table. V; l/out 0 “T 2 3 3.5 (d 5 pts) Plot Vow vs Vin using the values in your table. Collector Current Characteristic lb = 4011A ib = 30HA ib= 20uA Problem 3 — 20 pts For the given circuit and associated collector current characteristic: (a) From the collector current characteristic, estimate fl when 72;, is between 10 and 20 microamps. (b) From the load line, determine VCC and RC. (c) From the load line, estimate ’Uce when the transistor is fully saturated. (d) Also from the load line, estimate the minimum ib that will make the transistor fully saturated. Collector Current Characteristic 1.0 2.0 3.0 4.0 5.0 vce (V) Problem 4 ~ 20 pts For the given circuit, associated collector current characteristic and assuming Vbe = 0.7V (as is typical for a forward biased base-emitter junction of a silicon transistor): (a) draw a load line. (b) Determine the input current ib. (c) Estimate the collector current ic. (d) Estimate the output voltage. DM74ALSOOA Absolute Maximum RatingS(Note1) Supply Voltage 7V Input Voltage 7V 0 eratin Free Air Tern erature Ran e 0°C to +70°C p g p 9 Note 1: The “Absolute Maximum Ratings" are those values beyond which Storage Temperature Range —65°C to +150°C the safety of the device cannot be guaranteed The device should not be T ical e operated at these limits The parametric values defined in the Electrical yp JA Characteristics tables are not guaranteed at the absolute maximum ratings. N Package 86.5°CNV The “Recommended Operating Conditions" table will define the conditions tor actual device 0 oration. M Package Heme/w p Recommended Operating Conditions Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA : 25°C. Parameter Conditions Input Clamp Voltage HIGH Level Output Voltage LOW Level Output Voltage vCC : 4.5V, lI = —18 mA lOH : —o.4 mA vCC = 4.5V to 5.5V VCC=4.5V |°L=amA Input Current at Maximum vCC : 5.5V, vIH : 7v Input Voltage HIGH Level Input Current LOW Level Input Current Output Drive Current Vcc : 5.5V, VIH : 2.7V Vcc : 5.5V, VIL : 0,4V Vcc = 5.5V Supply Current Outputs HIGH Outputs LOW Switching Characteristics over recommended operating free air temperature range Parameter Conditions Propagation Delay Time LOW»to—HIGH Level Output Propagation Delay Time HIGH-to—LOW Level Output vcc : 4.5V to 5.5V RL : 5009 CL : 50 pF www.fairchi|dsemi.com 2 TYPES SN5442A, SN5443A, SN5444A, SN7442A, SN744‘3A, SN7444A 4-LINE TO 10-LINE DECODERS (1-0F-10) recommended operating conditions SN544ZA SN5443A SN5444A SN7442A SN7443A SW7444A Supply voltage, Vcc High-level output current, IOH Lowrlevel output current, IOL Operating treerair temperature, TA 53N7442A SN5443A EEN7443A SN5444A jiNTMAA MIN Tvpi MAX MIN 2 PARAMETER TEST CONDITIONS' VIH High-level input voltage _< ,. Low-level input voltage VIK Input clamp voltage vcc= MIN, VIH : 2v, v.L = 0.8V, IOH —800 MA VOH High-level output voltage 0.2 0.4 VCCZMIN, V|H=2V, VOL Low~level output voltage v.,_=o.8v, IDL=16mA Input current at maximum input voltage W IIH High-level input current VCC = MAX, V, : 2.4 V 4 ‘IL Low level input current VCC = MAX, VI = 0.4 V IOS Short Circuit output current .i Vcc = MAX 1 VCC = MAX, See Note 2 'For conditions shown as MlN or MAX, use the appropriate values specified under recommended oparatlng conditions. tAn lyptcal values are at vcc : 5 v, TA = 25°C. §Npt more than one output should be shorted at a time NOTE 2 ICC Supply current ICC IS measured wllh all outputs open and all inputs grounded. switching characteristics, vcc = 5 V, TA = 25°C PARAMETER Propagation delay time, hIgh-ttrlow-leuel TEST CONDITIONS l CL :15pF, RL : 400 51, See Note3 PHL output from A, B, C, or 0 through 2 levels ol logic Propagation delay time, hlgh-to-lowvlevel Prepagation delay time, loweto-high-level Propagation delay time, |ow»torhigh-level NOTE 3: See General Information Secunn for load CIrCullS and voltage wavelorms TEXAS ‘9 INSTRUMENTS POST OFFICE BOX 225012 i DALLAS TEXAS 75255 3-187 0.) TTL DEVICES ...
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d07hwk4final - ECE2022 HOMEWORK # 4 D07 Name : ECE Box...

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