74AHCT245PW,118

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHCT245PW,118 is an octal bus transceiver with 3-state outputs housed in a TSSOP20 package. It operates within a supply voltage range of 4.5 V to 5.5 V and accepts TTL input levels. The device features balanced propagation delays, Schmitt-trigger action on all inputs, and overvoltage tolerant inputs up to 5.5 V. It provides high noise immunity and CMOS low power dissipation. ESD protection exceeds 2000 V (HBM) and 1000 V (CDM). Latch-up performance complies with JESD 78 Class II Level A standards.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Accepts TTL input levels for compatibility with legacy logic families
• Features overvoltage tolerant inputs allowing operation in mixed voltage environments
• Includes Schmitt-trigger action on all inputs for improved noise immunity

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed 5 V and 3.3 V system interfacing
• High noise immunity signal transmission
• Bus-oriented communications systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the application environment remains within the specified 4.5 V to 5.5 V supply voltage limits. Ensure thermal management accounts for the TSSOP20 package derating characteristics above 100 °C. Validate that input signals do not exceed absolute maximum ratings to prevent permanent damage.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS output drive capabilities. The 74AHCT245 differs from the 74AHC245 by its specific input threshold levels designed for TTL logic families. Verify that the operating temperature range meets the environmental requirements of the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHCT series, which bridges TTL and CMOS technologies. It shares the functional architecture of the 74AHC245 but utilizes different input thresholds. The PW suffix indicates the TSSOP20 plastic thin shrink small outline package. This family supports bidirectional data transfer across eight channels simultaneously.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHC245PW,118 serves as a functional alternative if TTL input compatibility is not strictly required. Other packages such as SO20 or DHVQFN20 offer identical electrical specifications with different physical footprints.