State-of-the-Art BiCMOS Design
Significantly Reduces ICCZ
Designed to Facilitate Incident-Wave
Switching for Line Impedances of 25 Ω
or Greater
Distributed VCC and GND Pins Minimize
Noise Generated by the Simultaneous
Switching of Outputs
Data Flow-Through Pinout (All Inputs
on Opposite Side From Outputs)
High-Impedance State During Power Up
and Power Down
ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic 300-mil DIPs (NT)

description
The SN64BCT25245 is a 25-Ω octal bus transceiver designed for asynchronous communication between data
buses. It improves both the performance and density of 3-state memory address drivers, clock drivers, and
bus-oriented transceivers.
The device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon
the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the device so that
both buses are effectively isolated.
This transceiver is capable of sinking 188-mA IOL, which facilitates switching 25-Ω transmission lines on the
incident wave. The distributed VCC and GND pins minimize switching noise for more reliable system operation.
The outputs are in a high-impedance state during power up and power down while the supply voltage is less
than approximately 3 V.
The SN64BCT25245 is characterized for operation from −40°C to 85°C and 0°C to 70°C.