SN74LV245APW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LV245APW is an octal bus transceiver manufactured by Texas Instruments, designed for asynchronous bidirectional data communication. It operates within a supply voltage range of 2 V to 5.5 V and features three-state outputs. The device includes direction control (DIR) and output enable (OE) inputs to manage data flow between two buses. It supports mixed-mode operation on all ports, allowing voltages up to 5.5 V on I/O lines while the device is powered down. Key electrical characteristics include a maximum propagation delay of 6.5 ns at 5 V and high electrostatic discharge protection ratings.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports bidirectional data transfer between two independent buses via direction control input
• Enables partial power-down mode through Ioff feature to prevent reverse current during local shutdown
• Provides high electrostatic discharge protection exceeding JESD22 standards for robust signal integrity

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-voltage system data bus interfaces
• Asynchronous bidirectional communication links
• Local shutdown mode applications requiring isolation

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant and revision level against the manufacturer's latest datasheet before procurement. Confirm that the operating environment meets the specified temperature and voltage ranges. Ensure compatibility with existing board layout constraints regarding the TSSOP-20 footprint. Check for any recent product change notifications affecting pinout or electrical specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring wide voltage tolerance and bidirectional data routing. It is suitable for applications needing mixed-mode voltage operation without external level shifters. Consider its propagation delay and ESD ratings relative to signal speed requirements. Evaluate the need for partial power-down capabilities in low-power standby modes.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LV245A family of octal bus transceivers from Texas Instruments. It utilizes CMOS technology optimized for 3.3 V and 5 V operations. The device is part of a broader series of logic ICs designed for high-speed digital communication. It shares functional similarities with other LV-series transceivers but offers specific voltage and performance characteristics defined by its datasheet.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes may include SN74LV245AT or SN74LVC245APWR if pin compatibility and electrical parameters match. Verify that alternative parts support the same 2 V to 5.5 V operating range and three-state output configuration. Ensure the replacement maintains equivalent ESD protection levels and propagation delay specifications.