74AHC245PW,118

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHC245PW,118 is an octal bus transceiver with three-state outputs housed in a TSSOP20 package. It operates within a supply voltage range of 2.0 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features balanced propagation delays, Schmitt-trigger inputs, and overvoltage tolerant inputs up to 5.5 V. Static characteristics include low input leakage current and high noise immunity.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides bidirectional data transmission for eight-bit wide buses using direction control signals.
• Features Schmitt-trigger action on all inputs to convert slowly changing signals into sharply defined output pulses.
• Includes overvoltage tolerant inputs allowing interface to voltages exceeding the supply voltage without external components.

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed voltage environments requiring signal translation between different logic levels
• Driving bus lines or buffer memory address registers
• Bidirectional data flow management in complex printed circuit board layouts

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm RoHS compliance status through official manufacturer channels before finalizing procurement orders. Ensure the component version aligns with the latest product data sheet revision to avoid discrepancies in electrical specifications or pin configurations during integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring robust noise immunity and compatibility with CMOS logic families. The wide supply voltage range facilitates operation across various digital logic standards. Verify that the thermal dissipation requirements are met within the specified operating temperature range for the target application environment.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHC series of high-speed CMOS logic devices manufactured by Nexperia. It serves as a standard solution for managing data transfer across multiple parallel lines in digital electronic circuits. The TSSOP20 package provides a compact footprint suitable for space-constrained surface-mount designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT245PW,118 is a compatible alternative within the same family offering TTL-compatible input levels instead of CMOS levels. Designers must verify input voltage thresholds match the source logic family before substituting this part number.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the OE pin function?

A HIGH level on the Output Enable (OE) pin forces all outputs into a high-impedance OFF-state, effectively disconnecting the bus.

What is the purpose of the DIR pin?

The Direction (DIR) pin controls the data flow direction. A LOW level allows data to pass from port A to port B, while a HIGH level directs data from port B to port A.