Lead Small Outline Integrated Circuit (SOIC), JEDEC MS, Narrow. DM74LSSJ. M16D. Lead Small Outline Package (SOP), EIAJ TYPE II. A. ACTIVE. LCCC. FK. 1. TBD. POST-PLATE. N / A for Pkg Type. – 55 to A. SNJ54LS. FK. EA. ACTIVE. 74LS is a high speed 1-of-8 Decoder/ Demultiplexer. Shop/Components & Parts/IC’s/74 SERIES/74LS HD74LSP 3 to 8 Decoder/Demultiplexer.
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As shown in table first three rows the enable pins needed to be connected appropriately or irrespective of input lines i outputs will be high. Features and Electrical characteristics of 74LS Decoder Designed specifically for high speed Incorporates three enable pins to simplify cascading 74318 capability Schottky clamped for high performance ESD protection Balanced propagation delays Inputs accept voltages higher than VCC Supply voltage: It features fully buffered inputs, each of which represents only one normalized load to its driving circuit.
Product already added to wishlist! 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.
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. Reviews 0 Leave A Review You must be logged in to leave a review.
This device is ideally suited for high speed bipolar memory chip select address decoding. The 74lS decode one of eight lines dependent on the conditions at the three binary select inputs and the three enable inputs.
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.
A line decoder can be implemented with no 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 This means that the effective system delay introduced by the decoder is negligible to affect the performance.
Inputs include clamp diodes. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding.
Logic IC 74138
A line decoder can be implemented without external inverters and a line decoder requires only one inverter. TL — Programmable Reference Voltage. This means that the effective system delay introduced by the Schottky-clamped system decoder is negligible. 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.
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.
74LS HD74LSP 3 to 8 Decoder/Demultiplexer | Warefab
An enable input can be used as a data input for demultiplexing applications. Submitted by admin on 26 October Here the outputs are connected to LED to show which output pin goes LOW and do remember the outputs of the device are inverted. The chip is designed for decoding or de-multiplexing applications and comes with 3 inputs to 8 output setup. All of its essential components and connections are illustrated by graphic symbols arranged to describe operations as clearly as possible but without regard to the physical form of the various items, components or connections.
Description Resources Learn Videos Blog 74ls Schottky-clamped Iic MSI circuits are designed to be used in high-performance memory decoding or data-routing applications requiring very short 7438 delay times. For understanding the working of device let us construct a simple application circuit with a few external components as shown below. Choose an option 3.
This enables the use of current limiting resistors to interface inputs to voltages in excess of V CC. You must be logged in to leave a review.
Drivers Motors Relay Servos Arduino. Select options Learn More.
All inputs are clamped with high-performance Schottky diodes to suppress line-ringing and to simplify system design. Also the chip inputs are clamped with high-performance Schottky diodes to suppress line-ringing and simplify system design. The three buttons here represent three input lines for 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.