SN74LVC245AN

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245AN is an octal bus transceiver with 3-state outputs designed for asynchronous communication between data buses. It operates from a supply voltage of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation. The device provides a maximum propagation delay of 6.3 ns at 3.3 V and includes Ioff circuitry to support partial-power-down mode and back drive protection.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing 5-V input/output voltage compatibility with 3.3-V VCC
• Includes Ioff circuitry to disable outputs during power-down, preventing damaging current backflow
• Features high ESD protection performance exceeding JESD 22 specifications

Buffers, Drivers, Receivers, Transceivers Applications

• Cable modem termination systems
• Servers
• LED displays
• Network switches
• I/O expanders

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package type matches the required design constraints, as this component is available in multiple configurations including SSOP, TVSOP, SOIC, TSSOP, VQFN, and PDIP. Confirm the specific suffix indicates the desired packaging format before ordering. Ensure the selected variant meets the thermal and moisture sensitivity requirements for the intended manufacturing process.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing interfaces requiring bidirectional data transfer between buses operating at different voltage levels within the 1.65-V to 3.6-V range. The 5.5-V tolerant inputs make it suitable for translating signals from 5-V logic sources. Consider the PDIP-20 package specifically for through-hole mounting applications where surface-mount options are not feasible.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC245A family of octal bus transceivers manufactured by Texas Instruments. The 'N' suffix identifies the specific PDIP (Plastic Dual In-line) package variant. This family is engineered for low-voltage CMOS applications requiring high drive capability and robust input tolerance for system interconnects.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Ioff feature function?

The Ioff circuit disables the outputs when the device is powered down, preventing damaging current backflow through the device.

What is the maximum input voltage supported?

The inputs can accept voltages up to 5.5 V while the device operates at VCC levels between 1.65 V and 3.6 V.