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74F640

Features: *High-impedance NPN base inputs for reduced loading (70µA in High and Low states)*Ideal for applications which require high-output drive and minimal bus loading*Inverting version of 74F245*Octal bidirectional bus interface*3-State outputs sink 64mA and source 15mAPinoutSpecificati...

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SeekIC No. : 004249815 Detail

74F640: Features: *High-impedance NPN base inputs for reduced loading (70µA in High and Low states)*Ideal for applications which require high-output drive and minimal bus loading*Inverting version of...

74F640 Data Sheet

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Part Number:
74F640
Supply Ability:
5000

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  • 1~5000
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  • 15 Days
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Upload time: 2024/12/21

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Product Details

Description



Features:

*High-impedance NPN base inputs for reduced loading
  (70µA in High and Low states)
*Ideal for applications which require high-output drive and minimal
  bus loading
*Inverting version of 74F245
*Octal bidirectional bus interface
*3-State outputs sink 64mA and source 15mA


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER RATING UNIT
VCC Supply voltage 0.5 to +7.0 V
VIN Input voltage 0.5 to +7.0 V
IIN Input current 30 to +5 mA
VOUT Voltage applied to output in high output state 0.5 to VCC V
IOUT Current applied to output in low output state A0A7 48 mA
B0B7 128 mA
Tamb Operating free air temperature range 40 to +85 °C
Tstg Storage temperature range 65 to +150 °C



Description

    The 74F640 is an octal transceiver featuring inverting 3-State bus compatible outputs in both transmit and receive directions. The B port outputs are capable of sinking 64mA and sourcing 15mA, providing very good capacitive drive characteristics. The 74F640 features an Output Enable (OE) input for easy cascading and Transmit/Receiver (T/R) input for direction control. The 3-State outputs, B0B7, have been designed to prevent output bus loading if the power is removed from the device.




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