Allicdata Part #: | SN74ALS857DWRG4-ND |
Manufacturer Part#: |
SN74ALS857DWRG4 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC MULTIPLEXER SINGLE 24SOIC |
More Detail: | Multiplexer 6 x 2:1 24-SOIC |
DataSheet: | SN74ALS857DWRG4 Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | 74ALS |
Packaging: | Tape & Reel (TR) |
Part Status: | Obsolete |
Type: | Multiplexer |
Circuit: | 6 x 2:1 |
Independent Circuits: | 1 |
Current - Output High, Low: | 2.6mA, 24mA |
Voltage Supply Source: | Single Supply |
Voltage - Supply: | 4.5 V ~ 5.5 V |
Operating Temperature: | 0°C ~ 70°C |
Mounting Type: | Surface Mount |
Package / Case: | 24-SOIC (0.295", 7.50mm Width) |
Supplier Device Package: | 24-SOIC |
Base Part Number: | 74ALS857 |
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Logic - Signal Switches, Multiplexers and Decoders
Signal switches, multiplexers and decoders, collectively referred to as MSDs, are essential electronic components in logic circuits. They have a wide range of applications, and are used to select, amplify and route signals. In this article, we\'ll take a look at a particular type of MSD, the SN74ALS857DWRG4, and discuss its application field and working principle.
Application Field of SN74ALS857DWRG4
The SN74ALS857DWRG4 is an 8-bit universal translator that converts TTL/CMOS logic voltage levels to LVTTL levels. It has very low power consumption and can operate from a single 2.7 V to 5.5 V power supply. As such, it is often used in a variety of connectivity and embedded applications in consumer, healthcare and automotive industries, such as SCSI and Fibre Channel bus interfaces, Bluetooth, Ethernet switches, and microprocessors.
It is available in a 24-pin SSOP package and can operate over a wide temperature range of -40 °C to +85 °C. In addition, the SN74ALS857DWRG4 can interface between many existing standards such as TTL, LVTTL, LVDS, LVCMOS and HSTL. Its package size and wide range of functionality make it an ideal choice for many design projects.
Working Principle of SN74ALS857DWRG4
The SN74ALS857DWRG4 consists of two main components: a signal translator and an 8-bit, 3-state buffer. The translator converts signal levels from TTL/CMOS to LVTTL. It also has two 8-bit 3-state buffers, one for input signals and one for output signals. The two 8-bit buffers enable data to be transferred from one system to another without any signal level conversions.
The signal translator uses a two-stage process to convert TTL/CMOS inputs to LVTTL outputs. In the first stage, the input signals are inverted. In the second stage, the signals are level shifted to a voltage level compatible with the LVTTL outputs. The translation is controlled using an input enable signal, which can be either active high or low. If the enable signal is not asserted, all eight output signals assume a high impedance state.
The 3-state buffer allows the input and output signals to be connected or disconnected from each other. The buffer is controlled using the Select pin, which allows the user to select between the two 8-bit buffers. When the Select pin is set to a low logic level, the input signals are connected to the output signals. When it is set to a high logic level, the buffer is disabled, and the input and output signals are disconnected.
The SN74ALS857DWRG4 provides an efficient and cost-effective solution for data translation and signal routing. It is suitable for a variety of applications and can simplify design and reduce power consumption. With its wide compatibility, the SN74ALS857DWRG4 is a popular choice for many design projects.
The specific data is subject to PDF, and the above content is for reference
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