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SN54F257

Features: • 3-State Outputs Interface Directly With System Bus• Provides Bus Interface From Multiple Sources in High-Performance Systems• Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPsPinoutSpecificatio...

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SeekIC No. : 004496793 Detail

SN54F257: Features: • 3-State Outputs Interface Directly With System Bus• Provides Bus Interface From Multiple Sources in High-Performance Systems• Package Options Include Plastic Small-Outl...

SN54F257 Data Sheet

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Part Number:
SN54F257
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• 3-State Outputs Interface Directly With System Bus
• Provides Bus Interface From Multiple Sources in High-Performance Systems
• Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs


Pinout

Connection Diagram


Specifications

Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .  . .0.5 V to 7 V
Input voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 V to 7 V
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..30 mA to 5 mA
Voltage range applied to any output in the disabled or power-off state .. . . . ... .0.5 V to 5.5 V
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . .... . .0.5 V to VCC
Current into any output in the low state: SN54F257 . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .40 mA
                                                                  SN74F257 . . . . . . . . . . . . .. . . . .  . .  . . . . . . . . .48 mA
Operating free-air temperature range: SN54F257 . . . . . . . . . . . . . . .. . . . ..  . .55°C to 125°C
                                                              SN74F257 . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C


Description

The SN54F257 is designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output enable (OE) input is at a high logic level.

The SN54F257 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74F257 is characterized for operation from 0°C to 70°C.




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