SN74LS645-1NSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS645-1NSR is an octal bus transceiver from the Texas Instruments 74LS series, housed in a 20-pin Small Outline Package (SOP). It features non-inverting logic with three-state outputs. The device operates within a supply voltage range of 4.75V to 5.25V and supports a temperature range of 0°C to 70°C. Electrical characteristics include a maximum low-level output current of 48mA and a high-level output current of -15mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver architecture providing eight bidirectional data paths
• Three-state outputs allowing direct connection to system buses
• Non-inverting signal transmission for logical consistency

Buffers, Drivers, Receivers, Transceivers Applications

• Memory module interfacing
• Microprocessor-based systems
• Control circuits requiring bus isolation

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix '-1' against the manufacturer's package option addendum to confirm the SOP package type and lead finish specifications. Ensure compatibility with standard RoHS requirements if applicable to the manufacturing environment. Confirm that the active production status aligns with long-term availability needs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring non-inverting octal data transfer with three-state control capabilities. The LS logic family provides standard drive strength suitable for general-purpose digital applications. Verify that the operating voltage and temperature ranges meet the specific environmental constraints of the target design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN54LS640 through SN54LS645 family of octal bus transceivers. The '-1' designation typically indicates a specific pinout or functional variation within the broader 74LS64x series. It serves as a catalog product intended for standard commercial electronic applications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LS645NSR is a verified alternative offering identical functionality in the same package configuration.