Trade.Information

Product Name: Advanced Bus Interface

Product Description

For a long time, TTL busses have been the standard solution for backplane systems. Different logic families are available to fulfill the requirement for backplane busses and the choice for the appropriate logic strongly depended on the physical characteristics of the bus and the required signal integrity. The main factor affecting signal integrity is the number of receiving and transnitting modules connected into that bus. More cards on the backplane with closer spacing will lower the impedance of the bus due to additional capacitive loading resulting in the need for a higher drive capability of the logic device.

Standard logic devices can be used for either point to point connections or to realize backplane busses, which consists of many drivers and receivers along the bus. Both solutions using standard logic devices are usually set up as parallel busses; up to 36 bits can be switched by one device. The operational frequency can be chosen within a range from a few MHz up to the clock frequency of about 50 MHz, such that the data-throughput per device is in the range of 1 to 2 Gbps. A maximum bus-length is not specified for backplanes; however, in practice, the bus-length of parallel backplanes should not exceed about 50cm.

TI offers a wide selection of Advanced Bus Interface Logic products including ABT (Advanced BiCMOS Technology), ABTE (Advanced BiCMOS Technology/Enhanced Tranceiver Logic), ALVT (Advanced Low-Voltage BiCMOS Technology, FB (FutureBus/Backplane Tranceiver Logic), FCT (Fast CMOS Technology), GTL (Gunning Tranceiver Logic), GTLP (Gunning Tranceiver Logic Plus), LVT (Low-Voltage BiCMOS Technology, and VME.

Company Details

Few companies can match the 75-year record of innovations from the inventive minds at Texas Instruments. These advances include such world-changing innovations as the first integrated circuit and the first electronic handheld calculator.
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