74AHC245D,118

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHC245D,118 is an octal bus transceiver with 3-state outputs housed in a SO20 plastic small outline package (SOT163-1). It operates within a supply voltage range of 2.0 V to 5.5 V and features CMOS input levels. The device includes output enable (OE) and direction control (DIR) inputs for managing data flow between two buses. Inputs are overvoltage tolerant up to 5.5 V, enabling use in mixed-voltage environments. It specifies a maximum propagation delay of 11.9 ns at 5.5 V with a 50 pF load.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides bidirectional data transmission across eight channels with controlled direction via DIR pin
• Features high noise immunity and balanced propagation delays for reliable signal integrity
• Includes Schmitt-trigger action on all inputs to filter noisy signals
• Offers overvoltage tolerant inputs allowing safe interfacing with different voltage domains

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed voltage level translation between different logic families
• Bidirectional data bus buffering and driving
• Memory interface applications requiring 3-state isolation

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'D' corresponds to the SO20 package variant when sourcing. Confirm that the application environment remains within the specified -40 °C to +125 °C temperature range. Ensure supply voltage does not exceed the absolute maximum ratings to prevent permanent damage. Check for RoHS compliance requirements if applicable to the final assembly standards.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an 8-bit wide bus interface is required with CMOS logic compatibility. The AHC series offers lower power consumption compared to standard HC logic while maintaining similar speed. Consider the AHCT variant if TTL input levels are necessary instead of CMOS levels. The SO20 package is suitable for general-purpose PCB layouts where leaded surface-mount technology is preferred.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHC family of high-speed CMOS logic devices manufactured by Nexperia. It is functionally compatible with other industry-standard octal bus transceivers but offers specific performance characteristics defined by Nexperia's manufacturing process. The D suffix indicates the SO20 package type, distinguishing it from TSSOP or QFN variants within the same logical family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT245D,118 serves as a functional alternative if TTL-compatible input thresholds are required instead of CMOS levels. Other manufacturers may offer equivalent parts under different naming conventions, but electrical parameters must be verified against the Nexperia datasheet specifications.