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SN74ALS857

Features: • Select True or Complementary Data• Perform AND/NAND (Masking) of A or B Operand• Cascadable to Expand Number of Operands• Detect Zeros on A or B Operands• 3-State Outputs Interface Directly With System Bus• Package Options Include Plastic Small-Outli...

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SeekIC No. : 004498196 Detail

SN74ALS857: Features: • Select True or Complementary Data• Perform AND/NAND (Masking) of A or B Operand• Cascadable to Expand Number of Operands• Detect Zeros on A or B Operands• 3...

SN74ALS857 Data Sheet

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Part Number:
SN74ALS857
Supply Ability:
5000

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

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Upload time: 2025/12/24

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Product Details

Description



Features:

• Select True or Complementary Data
• Perform AND/NAND (Masking) of A or B Operand
• Cascadable to Expand Number of Operands
• Detect Zeros on A or B Operands
• 3-State Outputs Interface Directly With System Bus
• Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs


Pinout

Connection Diagram


Specifications

Supply voltage, VCC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . .7 V
Input voltage, VI  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . 7 V
Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Operating free-air temperature range, TA:SN54ALS857  . . . . . . . . 55°C to 125°C
                                                                   SN74ALS857 . . . . . . . .  . . . 0°C to 70°C
Storage temperature range  . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 65°C to 150°C 


Description

The SN54ALS857 and SN74ALS857 are hextuple 2-line to 1-line multiplexers with 3-state outputs. The SN54ALS857 and SN74ALS857 devices can provide either true (COMP low) or inverted (COMP high) data at the Y outputs. In addition, the 4ALS857 perform the logical AND function (A • B) and the clear function as well. The four modes of operation are:

• Select A-data inputs

• Select B-data inputs

• AND A inputs with B inputs

• Clear

In either of the first two modes, OPER = 0 is high if all the selected A or B inputs are low. The six Y outputs and the OPER = 0 output are all 3-state and rated at 12-mA and 24-mA IOL for the SN54ALS857 and SN74ALS857, respectively. All outputs can be placed in the high-impedance state by applying a high level to the COMP, S0, and S1 inputs simultaneously.

In the SN54ALS857 and SN74ALS857 series, the SN54ALS857 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS857 is characterized for operation from 0°C to 70°C.




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