SN74F245NE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74F245NE4 is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. The device features a propagation delay of up to 7 ns, low-level output current of 64 mA, and high-level output current of -15 mA. It functions in a non-inverting mode across eight channels and is rated for operation between 0°C and +70°C. The component is housed in a 20-pin PDIP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides asynchronous communication between data buses via bidirectional transmission control
• Features three-state outputs that directly drive bus lines while allowing effective isolation when disabled
• Supports standard TTL logic levels for both inputs and outputs

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Bidirectional data transfer on system buses
• Bus line driving applications requiring isolation capabilities

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'E' indicates lead-free composition and RoHS compliance as per Texas Instruments standards. Confirm the package type matches the required 20-pin DIP configuration for your assembly process. Ensure the operating temperature range aligns with your environmental requirements. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and current production status before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal bidirectional data transfer with high drive capability. The F-series logic family offers faster switching speeds compared to HC or HCT variants. Consider the 64 mA low-level output current for driving heavy loads on shared bus architectures. Verify that the 4.5 V to 5.5 V supply voltage range matches your system power rails and that the 0°C to 70°C commercial temperature rating suffices for your application environment.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74F245 series of octal bus transceivers produced by Texas Instruments. It is part of the broader SN54/74F logic family, characterized by fast switching speeds suitable for high-performance digital systems. The NE4 variant specifically denotes the PDIP package option with environmental compliance attributes, distinguishing it from surface-mount alternatives like the DWR or NSR packages within the same functional family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74F245N serves as a direct pin-compatible alternative without the E suffix. SN74F245DBR and SN74F245DWR offer identical functionality in SSOP and SOIC surface-mount packages respectively. SN74F245NSR provides the same electrical characteristics in a small-outline package. All listed substitutes maintain the 20-pin footprint and F-series performance metrics.