SN74HCT245N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT245N is an octal bus transceiver with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features eight non-inverting channels in a 20-pin PDIP package. The device supports bidirectional data transfer controlled by direction and output enable inputs. Key electrical specifications include a maximum propagation delay of 22 ns, low-level output current of 6 mA, and high-level output current of -6 mA. It functions reliably across an operating temperature range from -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides asynchronous bidirectional communication between two data buses via dedicated direction control inputs.
• Features three-state outputs that allow effective isolation of the bus when the output enable input is activated.
• Supports direct driving of bus lines or multiple LSTTL loads due to large current drive capabilities.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous bidirectional data communication between microprocessors and memory systems
• Bus-oriented architectures requiring isolated data transmission paths
• Driving capacitive loads on parallel data buses

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific datasheet revision and manufacturing date code upon procurement. Confirm compliance with RoHS directives and MIL-PRF-38535 requirements if applicable for your environment. Ensure the PDIP-20 through-hole package matches your PCB footprint design constraints before finalizing orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when CMOS-to-CMOS or CMOS-to-LSTTL interfacing is required for wide voltage applications. The HC series offers lower power consumption compared to standard TTL logic families. Consider the PDIP-20 package only if through-hole assembly is mandated by mechanical or reliability standards.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HC245 family of octal bus transceivers. It shares functional similarities with other variants like the SN74HCT245N but differs in input threshold characteristics and speed parameters. The HC series is designed for general-purpose digital logic applications requiring high noise immunity and low static power dissipation.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCT245N