Tokheim Digital Electronics Chapter 8 ICs

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

What is the 74192's counting range?

0-9

How many pins is the 7493 DIP?

14 pins

How many pins is the 74192 DIP?

16 or 20 pins

How many 4-bit binary ripple counters are contained in the 74HC393?

2 counters

How many cascade decade counters are contained in the 4553?

3 cascade decade counters

How many bits is the internal wiring of the 7493?

3-bit

How many T flip-flops are contained in each 4-bit counter for the 74HC393?

4 T-flip-flops

How many bits is the 7493?

4-bit

What is the function of the 74HC393 IC?

4-bit binary ripple

What is the function of the 74HC85?

4-bit magnitude comparator

What is the multiplexing rate of the 4553 IC?

40-80 Hz

What IC is the 4543 often paired with?

4553 BCD counter

What are the binary guess pins of the 74HC85?

A inputs

What does a yellow LED mean for the 74HC85?

A is less than B

What does a red LED mean for the 74HC85?

A is too high

What does a green LED mean for the 74HC85

A matches B

Is the MR pin for the 74HC393 asynchronous or synchronous?

Asynchronous

What inputs represent the number the binary guess should match for the 74HC85?

B inputs

What is the function of the 4543?

BCD-to-seven-segment decoder/driver

Is CLR active-HIGH or LOW for the 74192?

CLR = active-HIGH

What is CLK called in the 74HC393?

CP-not

How can longer words be made for comparison for the 74HC85?

Cascade multiple 74HC85 ICs

What must you do to make a 7493 a 4-bit counter?

Connect QA to QB CLK input

What is the function of the 7447 IC?

Decoder/driver

What do the latches feed in the 4553?

Display multiplexer

What must MR be connected to to operate?

Ground

What does the lamp test in the 7447 do?

It activates all outputs

Is the blanking input in the 7447 active-HIGH or LOW?

It is active-HIGH

What does C1 do for the 4553 IC?

It scans the oscillator frequency

What does the blanking input in the 7447 do?

It turns all attached displays off

What is PS called for the 74192 and is it active-HIGH or LOW?

Load = active-LOW

How is PL-not activated for the 74HC193?

NAND gate

What is the triggering of the 7493?

Negative-edge

Is the 4553 IC negative- or positive-edge triggered?

Negative-edge triggered

is the 74HC393 positive-or negative-edge triggered?

Negative-edge triggered

What pin preset the load for the 74HC193?

Parallel load (PL-not)

What pin is GND for the 7493?

Pin 10

What pin is Vcc for the 7493?

Pin 5

Is the 74192 positive- or negative-edge triggered?

Positive-edge triggered

What must the opposite clock be connected to in order to operate in the 74HC193

Power

What is the function of the 74HC193?

Presettable 4-bit up-down counter

What happens when QA is connected to QD of the 7493?

QA becomes the MSD and the counter is biquinary.

What gate resets the 7493 and what are the input names of it?

R0(1) and R0(2) are the inputs to the NAND gate

Is the 7493 ripple or synchronous

Ripple

Is the 74192 asynchronous or synchronous?

Synchronous

What are the BCD outputs of the 4553 fed to?

Three 4-bit transparent latches

What direction can the 7493 count?

Up

Does the 4553 IC contain a pulse shaper?

Yes

Are the BCD outputs for the 4553 IC active-HIGH or LOW?

active-HIGH

Are the Disable clock, master reset, and latch enable inputs active-HIGH or LOW for the 4553?

active-HIGH

Is master reset (MR) for the 74HC193 active-HIGH or LOW?

active-HIGH

Is the MR pin active-HIGH or active-LOW for the 74HC393?

active-HIGH

Are the digit select pins for the 4553 IC active-HIGH or LOW?

active-LOW

Is ripple-blanking in the 7447 active-HIGH or LOW?

active-LOW

Is the lamp test input for the 7447 active-HIGH or LOW?

active-LOW

What direction can the 74192 count?

up and down


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