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SN74ALS1640A

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 DIPsPinoutSpecificationsSupply voltage, VCC . . . . . . . . . . . . . . . . ...

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SeekIC No. : 004498091 Detail

SN74ALS1640A: 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 Stand...

SN74ALS1640A Data Sheet

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Part Number:
SN74ALS1640A
Supply Ability:
5000

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  • 1~5000
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  • 15 Days
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Product Details

Description



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


Pinout

Connection Diagram


Specifications

Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V
Input voltage, VI: All inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Package thermal impedance, qJA (see Note 1): DW package . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages, which
use a trace length of zero.


Description

These SN74ALS1640A and SN74ALS1645A  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 (OE) 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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