SN74ALS1645A

ACTIVE

Octal Bus Transceivers With 3-State Outputs

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Octal Bus Transceivers With 3-State Outputs

SN74ALS1645A

ACTIVE

Product details

Parameters

Technology Family ALS VCC (Min) (V) 4.5 VCC (Max) (V) 5.5 Bits (#) 8 Voltage (Nom) (V) 5 F @ nom voltage (Max) (MHz) 75 ICC @ nom voltage (Max) (mA) 38 Propagation delay (Max) (ns) 13 IOL (Max) (mA) 16 IOH (Max) (mA) -15 Rating Catalog Operating temperature range (C) 0 to 70 open-in-new Find other Standard transceiver

Package | Pins | Size

PDIP (N) 20 229 mm² 24.33 x 9.4 open-in-new Find other Standard transceiver

Features

  • Bidirectional Bus Transceivers in High-Density 20-Pin Packages
  • Lower-Power Versions of SN74ALS640B and SN74ALS645A
  • Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (N) 300-mil DIPs

 

 

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Description

These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending on the level at the direction-control

(DIR) input. The output-enable () input can be used to disable the device so that the buses are effectively isolated. The SN74ALS1640A features inverting logic, while the SN74ALS1645A features noninverting logic.

The SN74ALS1640A and SN74ALS1645A are characterized for operation from 0°C to 70°C.

 

 

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet Octal Bus Transceivers With 3-State Outputs datasheet (Rev. B) Feb. 01, 1997
Selection guides Logic Guide (Rev. AB) Jun. 12, 2017
Application notes Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
User guides LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application notes Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
Application notes TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
Application notes Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) Aug. 01, 1997
Application notes Designing With Logic (Rev. C) Jun. 01, 1997
Application notes Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application notes Live Insertion Oct. 01, 1996
Application notes Advanced Schottky (ALS and AS) Logic Families Aug. 01, 1995

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
10
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices

CAD/CAE symbols

Package Pins Download
PDIP (N) 20 View options

Ordering & quality

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