SN74F245N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74F245N is an octal bus transceiver from the Texas Instruments SN74F series, designed for asynchronous bidirectional data communication between two buses. It features eight non-inverting channels with three-state outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device utilizes TTL input and output levels, ensuring compatibility with standard logic families. Key electrical characteristics include a propagation delay of 7 ns, a low-level output current capability of 64 mA, and a high-level output current of -15 mA. It is housed in a 20-pin PDIP package and supports an operating temperature range from 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides asynchronous bidirectional data transfer across eight channels controlled by direction and output enable signals.
• Features three-state outputs that effectively isolate the bus when disabled.
• Delivers high drive strength suitable for direct bus line driving or loading multiple TTL devices.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous bidirectional data communication between microprocessors and memory systems.
• I/O port expansion in digital control circuits.
• Data bus buffering and isolation in industrial instrumentation.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm pinout and electrical specifications. Ensure the component meets the required RoHS compliance standards for your region. Confirm the package type matches the PCB footprint requirements before ordering.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed switching (7 ns) and strong drive current are required compared to LS or HC series alternatives. It is suitable for applications needing TTL-compatible inputs and outputs within a standard 5 V supply environment. Consider the PDIP package constraints if surface mount space is limited.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74F family of logic ICs, known for faster performance than standard TTL variants. It serves as a core interface component in digital systems requiring robust data handling. The SN74F245 variant specifically addresses the need for wide-bus data transfer with minimal external timing requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74F245NSR

Buffers, Drivers, Receivers, Transceivers FAQ

What is the maximum low-level output current?

The maximum low-level output current is 64 mA.

Does the device support bidirectional data flow?

Yes, it allows data transmission from A to B or B to A based on the DIR input level.