MC74LVX245DTR2

Overview

The MC74LVX245DTR2 is an octal bus transceiver manufactured by onsemi. It operates within a DC supply voltage range of 2.0 V to 3.6 V and supports inputs up to 5.5 V. The device features balanced propagation delays with typical values of 4.7 ns at 3.3 V and 6.1 ns at 2.7 V. Quiescent supply current is limited to a maximum of 40 µA. It utilizes a TSSOP-20 package and functions across an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Provides two-way asynchronous communication between data buses via bidirectional transmission control.
• Features 5 V-tolerant inputs allowing safe interfacing with higher voltage logic levels.
• Includes power-down protection on inputs to prevent excessive current draw during low-power states.

Applications

• Two-way asynchronous communication between data buses
• Memory address driving applications
• TTL level bus oriented transceiver systems

Procurement Notes

Verify the specific ordering suffix against official documentation, as it determines the physical package type and shipping quantity. Confirm that the component meets RoHS compliance requirements for your assembly process. Ensure input pins are not left floating to maintain stable operation and prevent damage.

Selection Notes

Select this component when designing systems requiring bidirectional data transfer between 2.0 V to 3.6 V buses. It is suitable for applications needing 5 V tolerant inputs without direct 5.0 V to 3.0 V system interfacing due to parasitic diode constraints. Verify that the TSSOP-20 package fits the available PCB footprint.

Part Context

This part belongs to the LVX logic family, designed for low-voltage CMOS applications. It serves as an octal bus transceiver intended for high-speed data transmission. The device is pin and function compatible with other standard logic families, facilitating integration into existing designs requiring bus isolation or direction control.

Replacement Considerations

Check the datasheet for alternative packages such as SOIC-20 (DW suffix) which shares identical electrical characteristics. Ensure any substitute maintains the same 5 V tolerance and bidirectional functionality while fitting the required thermal and mechanical constraints.