74S00 Datasheet, 74S00 PDF, 74S00 Data sheet, 74S00 manual, 74S00 pdf, 74S00, datenblatt, Electronics 74S00, alldatasheet, free, datasheet, Datasheets, . An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters . 74S00 – Download as PDF File .pdf), Text File .txt) or read online. Datasheet.

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The part 74z00 for series logic devices often use the following designators:. Analyze the circuits and explain the results. In normal usage a logic-HI is provided by an external pull-up resistor as shown. Several generations of pin-compatible descendants of the original family have since become de facto standard electronic components.

Specific functions are described in a list of series integrated circuits.

Circuito integrado 7400

The 74LS family of ICs is a lower-power version of the 74S family, with slightly higher speed but lower power dissipation than the original 74 family; it became the most popular variant once it was widely available.

To present basic characteristic and limitations of gates. What is the difference between open collector, tri-state and totem-pole outputs? Since open collector is often used where “0” is the active state, this is also called a “wired-OR” connection, referring to an active-low OR function.

What is the minimum and maximum frequency of oscillation? A tri-state buffer or inverting buffer datqsheet like a regular buffer or inverter, except there is an additional “enable” control signal entering the gate.

This is useful for creating a party-line data bus or control bus whereby any one of several circuits may pull the line LO without causing damage to another active output.

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. The only limitation of the 74LS00 family compared to the family is that the 74LS00 family can only source half as much current. Since a regular TTL logic gate sources current for “1” and sinks current for “0,” a signal where neither of these is happening the signal is “off,” like in open collector outputs can actually be thought of as being a third state.


Retrieved 17 March Use a 1K potentiometer to supply a variable input voltage. Often a part from a different 74×00 subfamily could be substituted ” drop-in replacement ” in a circuit, with the same function and pin-out yet more appropriate characteristics for an application perhaps speed or power consumptionwhich was a large part of the appeal of the 74C00 series over the competing CDB series, for example.

What are the criteria for determining the value of the pull-up resistor for an open collector output?


Retrieved 8 June You might signal a logic function to drive its output high or low as the function may determineand then later tell that function to turn off its output so that a different function may drive the signal instead. While designed as a family of digital logic, some TTL chips were used in analogue circuits, such as Schmitt triggers [ citation needed ].

Today, surface-mounted CMOS versions of the series are used in various applications in electronics 74s000 for glue logic in computers and industrial electronics.

A good analogy to this is the pull-cord on a city bus which one pulls when requesting the driver to stop. Additional characters in a part number identify the package and other variations. A number of different technologies were available from the 74z00 Union, datasheey [33] [34] [35] [29] Czechoslovakia, [36] [31] Poland, [29] [31] and East Germany.

A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the datasheeg support device or system, or to affect its safety or effectiveness.

However, this type of circuit suffers from significant harmonic distortion and shortened component life. This method of combining multiple outputs on the same signal path is used heavily in microprocessor circuits, where several different memory or input circuits may be sharing a common set of data signals.

The datasheett is identical to the 74LS except it only counts from 0 through 9 through binary ; the 74LS is similarly identical to the 74LS except for the limited range. Motoroloa Semiconductor Products Inc.


Digital Electronics

Families can be characterized by the relationship between propagation-delay and power. New Product View Product Index. Study the feedback circuits shown and use the oscilloscope to examine the signal at different stages in datashest circuit.

Let us examine the typical totem-pole output once again. The and series were used in many popular minicomputers in the s and early s.

74S00 Datasheet PDF

The 74F family was introduced by Fairchild Semiconductor and adopted by other manufacturers; it is faster datzsheet the 74, 74LS and 74S families. This is called the high impedance or Hi-Z state. Retrieved from ” https: Archived from the original on 28 February Retrieved 31 May What is the minimum and maximum values of R and C?

In other words, when Q3 is closed, Q4 is open. Two-input logic gates The five standard two-input logic gates in the datashewt family are listed in the table below.

In order for outputs to present a logic LO they have to have current-sinking capabilities. Before July the two letters from the functional description were eatasheet after the datasheeh digit of the series. The 74LS00 family improves technically on the family in two key areas: Intypical quantity-one pricing for the SN military grade, in ceramic welded flat-pack was around 22 USD.

Observe here that the circuit elements associated with Q4 in the totem-pole circuit are missing and the collector of Q3 is left open-circuited, hence the name open-collector.

Wikimedia Commons has media related to Series. The 74H dstasheet provided a number of unique devices for CPU designs in the s. Why is 74w00 logic commonly used? Bus drivers with tri-state outputs are connected together to create a bus system.

The quad NAND gate was the first product in the series, introduced by Texas Instruments in a military grade metal flat package W in October The device should not be operated at these limits. Does this input constitute a logic LO or logic HI input?