Posted on: March 13, 2020 Posted by: admin Comments: 0

74138 DECODER PDF

74LS is a member from ’74xx’family of TTL logic gates. The chip is designed for decoding or de-multiplexing applications and comes with 3. The 74LS is a high speed 1-of-8 Decoder/Demultiplexer. This device is ideally suited for high speed bipolar memory chip select address decoding. The. The 74LS is a 3-to-8 Decoder/Demultiplexer designed to be used in high- performance memory decoding or data-routing applications requiring very short.

Author: Daim Moogukinos
Country: Mauritania
Language: English (Spanish)
Genre: Travel
Published (Last): 13 June 2013
Pages: 70
PDF File Size: 14.36 Mb
ePub File Size: 1.34 Mb
ISBN: 613-9-47234-537-7
Downloads: 32307
Price: Free* [*Free Regsitration Required]
Uploader: Sazilkree

The three buttons here represent three input lines for the device. Submitted by admin on 26 October decodef The three enable pins of chip in which Two active-low and one active-high reduce the need for external gates or inverters when expanding. As mentioned earlier the chip is specifically designed to be used in high-performance memory-decoding or data-routing applications which require very short propagation delay times.

Reviews 0 Leave A Review You must be logged in to leave a review. Features and Electrical characteristics of 74LS Decoder Designed specifically for high speed Incorporates three enable pins to simplify cascading De-multiplexing capability Schottky clamped for high performance ESD protection Balanced propagation delays Inputs accept voltages higher than VCC Supply voltage: Choose an option 3.

In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. These devices contain four independent 2-input AND gates.

Also the chip inputs are clamped with high-performance Schottky diodes to suppress line-ringing and simplify system design. This means that the effective system delay introduced by the decoder is negligible to affect the performance. A line decoder can be implemented without external inverters and a line decoder requires only one inverter.

This amplifier exhibit low supply-current drain and input bias and offset currents that is much less than that of the LM Product successfully added to your wishlist! The chip is designed for decoding or de-multiplexing applications and comes with 3 inputs to 8 output setup. An enable input can be used as a data input for demultiplexing applications. This means that the effective system delay introduced by the Eecoder system decoder is negligible.

  EP-9NPA ULTRA MANUAL PDF

Select options Learn More. Choose an option 20 28 Decodre memory unit data exchange rate determines the performance of any application and the delays of any kind are not tolerable there. Add to cart Learn More.

74LS, 3-to-8 Decoder / Demultiplexer – | QQ Online Trading

Features 74ls features include; Designed Specifically for High-Speed: Inputs include clamp diodes. In such applications using 74LS line decoder is ideal because the delay times of this device are less than the typical access time of the memory. The 74lS decode one of eight lines dependent on the conditions at the three binary select inputs decodrr the three enable inputs. TL — Programmable Reference Voltage. All inputs are clamped with high-performance Schottky diodes to suppress line-ringing and to simplify system design.

Here the outputs are connected to LED to show which output pin goes LOW and do remember the outputs of the device are inverted.

Standard frequency crystals — use these crystals to provide a clock input to your microprocessor. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. Description Resources Learn Videos Blog 74ls Schottky-clamped TTL MSI circuits are designed to be used in high-performance memory decoding or data-routing applications requiring very short propagation delay times.

In high performance memory systems these decoders can be used to minimize the effects of system decoding. You must be logged in to leave a review.

Drivers Motors Relay Servos Arduino. A line decoder can be implemented with edcoder external inverters, and a line decoder requires only one inverter.

  2004 IRR OF PD 1096 PDF

Product already added to wishlist! This device is ideally suited for high speed bipolar memory chip select address decoding. It features fully buffered inputs, each of which represents only one normalized load to its driving circuit. As shown in table first three rows the decder pins needed to be connected appropriately or irrespective of input lines all outputs will be high.

After connecting the enable pins as shown in circuit diagram you can use the input line to get the output. This way we can realize all the truth table by toggling the three buttons B1, B2 and B3 Three inputs A0, A1 and A2 and with that we have three input to eight output decoder. This enables the use of current limiting resistors to interface inputs to voltages in excess of V CC.

74LS138, 3-to-8 Decoder / Demultiplexer – 74138

How to use 74LS Decoder For understanding the working of device let us construct a simple application circuit with a few external components as shown below. For understanding the working let us consider the truth table of the device. The design is also made for the chip to be used in high-performance memory-decoding or data-routing applications, requiring very short propagation delay times.

The LM is a quadruple, independent, high-gain, internally compensated operational amplifiers designed to have operating characteristics similar to the LM For understanding the working of device let us construct a simple application circuit with a few external components as shown below.

When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory.

Categories:

Leave a Comment