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MC74ACT257

Features: • Multiplexer Expansion by Tying Outputs Together• Noninverting 3-State Outputs• Outputs Source/Sink 24 mA• 'ACT257 Has TTL Compatible InputsPinoutSpecifications Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) 0.5 to ...

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MC74ACT257: Features: • Multiplexer Expansion by Tying Outputs Together• Noninverting 3-State Outputs• Outputs Source/Sink 24 mA• 'ACT257 Has TTL Compatible InputsPinoutSpecifications ...

MC74ACT257 Data Sheet

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Part Number:
MC74ACT257
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Multiplexer Expansion by Tying Outputs Together
• Noninverting 3-State Outputs
• Outputs Source/Sink 24 mA
• 'ACT257 Has TTL Compatible Inputs


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Value
Unit
VCC
 DC Supply Voltage (Referenced to GND)
0.5 to +7.0
V
Vin
 DC Input Voltage (Referenced to GND)
0.5 to VCC +0.5
V
Vout
 DC Output Voltage (Referenced to GND)
0.5 to VCC +0.5
V
Iin
 DC Input Current, per Pin
±20
mA
Iout
 DC Output Sink/Source Current, per Pin
±50
mA
ICC
 DC VCC or GND Current per Output Pin
±50
mA
Tstg
 Storage Temperature
65 to +150
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation
   should be restricted to the Recommended Operating Conditions.


Description

The MC74AC257/74ACT257 is a quad 2-input multiplexer with 3-state outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs of MC74ACT257 present the selected data in true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems.




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