SN74LS645-1DW

$1.17

Description：IC TXRX NON-INVERT 5.25V 20SOIC
Series：74LS
Mfr：Texas Instruments
Package：Bulk,Tube

SKU:c6fc1900c329 Category: Buffers, Drivers, Receivers, Transceivers Brand: Texas Instruments

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Product introduction

SN74LS645-1DW is listed in the Buffers, Drivers, Receivers, Transceivers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC TXRX NON-INVERT 5.25V 20SOIC. Review the specifications below when checking this part for your BOM.

Buffers, Drivers, Receivers, Transceivers specifications for SN74LS645-1DW

Description：IC TXRX NON-INVERT 5.25V 20SOIC
Series：74LS
Mfr：Texas Instruments
Package：Bulk,Tube
Logic Type：Transceiver, Non-Inverting
Number of Elements：1
Number of Bits per Element：8
Input Type：-
Output Type：3-State
Current - Output High, Low：15mA, 48mA
Voltage - Supply：4.75V ~ 5.25V
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：20-SOIC (0.295", 7.50mm Width)
Supplier Device Package：20-SOIC
Grade：-
Qualification：-

Buffers, Drivers, Receivers, Transceivers datasheet and documents for SN74LS645-1DW

SN74LS645-1DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS645-1DW is an octal bus transceiver from the Texas Instruments SN54LS/74LS series. It features non-inverting logic with three-state outputs and a single direction control input. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range of 0°C to 70°C. It is housed in a 20-pin Small Outline Integrated Circuit (SOIC) package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

Octal bus transceiver architecture providing eight bidirectional data channels
Three-state outputs allowing direct connection to system buses
Single direction control pin manages data flow between ports A and B

Buffers, Drivers, Receivers, Transceivers Applications

Memory and memory-mapped I/O driving
Bus-oriented architectures requiring signal isolation
Two-port communication systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the obsolete production status of this specific SOIC variant before procurement planning. Confirm that the SN74LS645-1DWR tape-and-reel version meets current manufacturing requirements. Ensure compatibility with existing PCB footprints designed for the DW package outline.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when non-inverting octal transfer is required with three-state capability. Verify that the LS logic family characteristics align with the target system's power and speed constraints. Consider the SN74LS645-1DWR as the active alternative if volume packaging is necessary.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN54LS/74LS64x family of octal bus transceivers. The SN74LS645-1DW specifically denotes the commercial grade, non-inverting variant with three-state outputs. It shares functional similarities with other members of the SDLS189 datasheet but differs in output configuration compared to open-collector versions.