SN74AS645DW

$1.98

Description：IC TXRX NON-INVERT 5.5V 20SOIC
Series：74AS
Mfr：Texas Instruments
Package：Tube,Tube

SKU:d889e2679334 Category: Buffers, Drivers, Receivers, Transceivers Brand: Texas Instruments

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Product introduction

SN74AS645DW 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 5.5V 20SOIC. Review the specifications below when checking this part for your BOM.

Buffers, Drivers, Receivers, Transceivers specifications for SN74AS645DW

Description：IC TXRX NON-INVERT 5.5V 20SOIC
Series：74AS
Mfr：Texas Instruments
Package：Tube,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, 64mA
Voltage - Supply：4.5V ~ 5.5V
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 SN74AS645DW

SN74AS645DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS645DW is an octal bus transceiver manufactured by Texas Instruments, designed for asynchronous two-way communication between data buses. It features true logic and 3-state outputs within a high-density 20-pin Plastic Small-Outline (SOIC) package. The device operates over a recommended supply voltage range of 4.5 V to 5.5 V and supports an operating free-air temperature range from 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

Bidirectional data transmission capability between A and B buses controlled by the DIR input
Output isolation functionality provided by the OE input to effectively disconnect buses
High-speed switching characteristics suitable for demanding digital applications

Buffers, Drivers, Receivers, Transceivers Applications

Asynchronous two-way communication between data buses
Bus-oriented memory and signal interfacing
Clock drivers and buffered oscillators

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's Package Option Addendum to confirm the exact package type and material finish. Ensure that the selected variant matches the required operating temperature range and electrical specifications for your application environment before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed bidirectional data transfer is required in a compact surface-mount form factor. Consider the AS logic series for its superior speed compared to standard ALS variants while maintaining TTL-compatible input levels. Verify that the 20-pin SOIC footprint aligns with your PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AS645 family of octal bus transceivers. It shares functional similarities with the SN74ALS645A but offers faster propagation delays. The DW suffix specifically denotes the Plastic Small-Outline package, distinguishing it from DIP or tape-and-reel variations within the same logical family.