SN74LS640N3

$0.37

Description：IC TXRX INVERT 5.25V 20DIP
Series：-
Mfr：Texas Instruments
Package：Bulk

SKU:0594d77d5fac Category: Buffers, Drivers, Receivers, Transceivers Brand: Texas Instruments

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Product introduction

SN74LS640N3 is listed in the Buffers, Drivers, Receivers, Transceivers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC TXRX INVERT 5.25V 20DIP. Review the specifications below when checking this part for your BOM.

Buffers, Drivers, Receivers, Transceivers specifications for SN74LS640N3

Description：IC TXRX INVERT 5.25V 20DIP
Series：-
Mfr：Texas Instruments
Package：Bulk
Logic Type：Transceiver, Inverting
Number of Elements：1
Number of Bits per Element：8
Input Type：-
Output Type：3-State
Current - Output High, Low：15mA, 24mA
Voltage - Supply：4.75V ~ 5.25V
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Through Hole
Package / Case：20-DIP (0.300", 7.62mm)
Supplier Device Package：20-PDIP
Grade：-
Qualification：-

Buffers, Drivers, Receivers, Transceivers datasheet and documents for SN74LS640N3

SN74LS640N3

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS640N3 is an octal bus transceiver from the Texas Instruments 74LS series, housed in a 20-pin PDIP package. It features three-state outputs and operates within a supply voltage range of 4.75 V to 5.25 V. The device supports bidirectional data transfer controlled by a direction input and includes a low-active output enable input. Designed for TTL-compatible inputs and outputs, it functions reliably across an operating temperature range of 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

Octal bus transceiver architecture with three-state outputs
Bidirectional data transfer capability controlled by direction input
Low-active output enable functionality
TTL-compatible input and output levels

Buffers, Drivers, Receivers, Transceivers Applications

Memory mapping control
Bus-oriented architectures
Clock drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific suffix 'N3' corresponds to the standard active production PDIP variant listed as SN74LS640N or SN74LS640-1N in official documentation. Confirm RoHS compliance status and lead finish specifications (NIPDAU) match project requirements before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal bus transceiver with three-state outputs is required for TTL logic systems. Ensure the application environment remains within the specified 0°C to 70°C temperature range and utilizes a 5V power supply compatible with the 4.75V to 5.25V operational limits.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN54LS640 through SN74LS645 family of octal bus transceivers published by Texas Instruments. The datasheet SDLS189 covers multiple variants including non-inverting and open-collector options. The SN74LS640 specifically provides inverting three-state functionality for general-purpose digital applications.