SN74AS640NS

$2.84

Description：IC BUS TRANSCEIVER 8BIT 20SO
Series：*
Mfr：Texas Instruments
Package：Bulk

SKU:706bed5b1c12 Category: Buffers, Drivers, Receivers, Transceivers Brand: Texas Instruments

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Product introduction

SN74AS640NS is listed in the Buffers, Drivers, Receivers, Transceivers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC BUS TRANSCEIVER 8BIT 20SO. Review the specifications below when checking this part for your BOM.

Buffers, Drivers, Receivers, Transceivers specifications for SN74AS640NS

Description：IC BUS TRANSCEIVER 8BIT 20SO
Series：*
Mfr：Texas Instruments
Package：Bulk
Logic Type：-
Number of Elements：-
Number of Bits per Element：-
Input Type：-
Output Type：-
Current - Output High, Low：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

Buffers, Drivers, Receivers, Transceivers datasheet and documents for SN74AS640NS

SN74AS640NS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS640NS is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a commercial temperature range of 0°C to 70°C. The device features inverting logic and bidirectional data transmission between A and B buses controlled by DIR and OE inputs. Propagation delays are specified as 2 ns to 7 ns for high-to-low transitions and 2 ns to 8 ns for low-to-high transitions under standard load conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

Bidirectional octal bus transceiver architecture enabling asynchronous two-way communication
Inverting logic design with dedicated direction control and output enable functions
High-density 20-pin plastic DIP package configuration

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'N' corresponds to the standard plastic DIP-20 package variant. Confirm RoHS compliance status and lead finish details against the latest TI Package Option Addendum, as manufacturing parameters may vary across production lots and regions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed AS-series performance is required for octal data transfer. Ensure the application environment remains within the 0°C to 70°C operating range. Verify that the 3-state output isolation requirements align with the system's bus management strategy.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN54/74AS640 family of octal bus transceivers. It shares functional similarities with the SN74ALS640B but offers faster switching characteristics typical of the Advanced Schottky series. The device is designed for high-density PCB layouts requiring efficient bus arbitration.