Texas Instruments ETL Bus Transceivers:

SN74ABTE16245 and SN74ABTE16246

Summary of Technical Features

• Increases bus bandwidth of TTL-based backplanes and is backward compatible with TTL systems
• Supports VME64 extensions specification, increasing bandwidth of VME-based systems by approximately 60 percent (40 MHz for ETL; 25 MHz for TTL)
• Narrow switching threshold and larger noise margins minimize electrical noise and signal distortion
• High-drive outputs (-60 to 90 milli-Amps) supports 25-ohm incident-wave switching
• Live insertion of ETL-based boards into live backplanes accomplished with Vcc BIAS pin, which assures precharged outputs between 1.3 and 1.7 V when Vcc not connected
• Bus-hold feature eliminates the need for external pull-up resistors by retaining the last state of the bus
• Operating temperature range from -40 to 85 degrees C
• EPIC-IIB BiCMOS fabrication process used to reduce power dissipation
• Member of TI Widebus logic family
• Packaged in plastic Shrink Small-Outline Packages (SSOP) and Thin Shrink Small-Outline Packages (TSSOP)

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