SN74LS245M

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS245M is an octal bus transceiver manufactured by Texas Instruments, designed for asynchronous bidirectional communication between data buses. It features three-state outputs and operates within a voltage range of 4.75 V to 5.25 V. The device provides eight bits of data transfer capability with a typical propagation delay of 8 ns at 5 V. It utilizes LS-TTL technology and is housed in a 20-pin Small Outline Package (SOP).

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Enables asynchronous bidirectional data transmission between two 8-bit buses.
• Provides three-state outputs to facilitate direct bus driving and isolation.
• Incorporates PNP inputs to reduce DC loading on the bus lines.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication interfaces between microprocessors and memory modules.
• Bidirectional data buffering in industrial control systems.
• General-purpose digital signal routing in mixed-technology logic circuits.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the component is sourced from authorized channels to ensure authenticity. Confirm the package type matches the required SOP-20 footprint. Check for RoHS compliance status if environmental regulations apply to the specific manufacturing batch. Ensure the operating temperature range meets system requirements.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing between 5V LS-TTL logic families requiring bidirectional data flow. It is suitable for applications needing moderate speed with low input loading characteristics. Consider alternative LVC or HC series devices if lower power consumption or wider voltage ranges are required instead of standard 5V operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4LS245 family of octal bus transceivers. It shares pin compatibility with other 74-series logic devices but is distinct due to its Low-power Schottky TTL technology. The 'M' suffix specifically denotes the plastic small-outline package variant used for surface-mount assembly.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

• SN74LS245N
• SN74LS245NSR