SN74BCT25245NT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT25245NT is an octal bus transceiver utilizing state-of-the-art BiCMOS design. It operates on a single 4.5-V to 5.5-V supply and features 24 pins in a plastic DIP package. The device provides non-inverting data transmission between two buses controlled by DIR and OE inputs. It supports low-level output currents up to 188 mA, facilitating incident-wave switching for line impedances of 25 Ω or greater. Propagation delays range from 1.2 ns to 7.2 ns depending on direction and voltage.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Designed for incident-wave switching on transmission lines with impedances of 25 Ω or greater
• Distributed VCC and GND pins minimize noise generated by simultaneous switching of outputs
• ESD protection exceeds 2000 V per MIL-STD-883C Method 3015

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• 3-state memory address drivers
• Clock drivers
• Bus-oriented transceivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific NT suffix indicates the standard plastic DIP package configuration before procurement. Confirm that the operating temperature range aligns with commercial requirements (0°C to 70°C). Ensure input and output voltage ratings are compatible with the system's logic levels to prevent exceeding absolute maximum ratings during operation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high drive capability is required for 25-Ω transmission lines. The BiCMOS technology offers significantly reduced standby current compared to older technologies. Consider the distributed power pin layout if minimizing simultaneous switching noise is critical for system reliability. Verify package availability against board space constraints for through-hole mounting.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments BCT logic family, which combines BiCMOS speed with CMOS power efficiency. The SN74BCT25245 is the commercial grade version of the SN54BCT25245, differing primarily in the specified operating temperature range. It serves as a robust solution for high-density digital systems requiring reliable bidirectional data transfer.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74BCT25245DW

Buffers, Drivers, Receivers, Transceivers FAQ

What is the maximum low-level output current supported by the A port?

The A port can sink up to 188 mA in the low state.

How does the device handle isolation between buses?

Setting the output-enable (OE) input to a high logic level disables the device, effectively isolating both buses.