ST491ACDR Allicdata Electronics
Allicdata Part #:

497-2889-2-ND

Manufacturer Part#:

ST491ACDR

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: STMicroelectronics
Short Description: IC TXRX LPWR HS RS485/422 14SOIC
More Detail: 1/1 Transceiver Full RS422, RS485 14-SO
DataSheet: ST491ACDR datasheetST491ACDR Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Part Status: Obsolete
Type: Transceiver
Protocol: RS422, RS485
Number of Drivers/Receivers: 1/1
Duplex: Full
Receiver Hysteresis: 70mV
Data Rate: 50Mbps
Voltage - Supply: 4.5 V ~ 5.5 V
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 14-SO
Base Part Number: ST491A
Description

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Interface components may be divided into several distinct categories, including drivers, receivers, transceivers, and ST491ACDRs. ST491ACDRs, also known as synchronous transceivers, are automatic data-receiving and data-sending devices used to effectively transfer digital data. In addition to acting as a synchronous transceiver, this type of IC can be used as a simplified alternative to a full-function transceiver. ST491ACDRs are used in a wide range of applications, ranging from high-speed computer communications and automotive systems to electro-optics, test and measurement equipment, and telecom systems.

Using ultrasonic energy, the ST491ACDR sends and subsequently receives data signals in both directions. This requires very little power compared to the power required for full-function transceivers. As a result, ST491ACDRs are the preferred alternative for applications requiring high speed and low power.

A typical ST491ACDR application involves sending commands to a slave device and then receiving data from the same device. A common example of this could be in a computer network, where the master device sends commands to a peripheral slave device and then receives data from the device through the ST491ACDR, eliminating the need for two separate transceivers.

In addition to the two signal pins, ST491ACDRs also feature other pins such as ground, power supply and control. The control pin is used to initiate the signal transmission and reception and the ground pin provides a reference voltage against which transmitted and received signals are measured.

An ST491ACDR operates using a synchronization signal sent to it by the master device. Upon receiving the signal, the ST491ACDR will transmit data in both directions. The ST491ACDR then resynchronizes itself and sends a new synchronization signal to the master device when the data transmission is complete.

In addition to automated data-receiving and data-sending, ST491ACDRs are also capable of data filtering and error checking. This is done by performing a digital signal processing algorithm on the received data. If any errors are detected, the ST491ACDR will reject the data and prompt the master device for a retransmission.

The ST491ACDR is an excellent choice for applications requiring reliable and efficient data transfer, low power consumption and a simplified transceiver solution. Its simplification of two-way data transfer, data filtering and error checking is a welcome alternative to the power and complexity of a full-function transceiver.

The specific data is subject to PDF, and the above content is for reference

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