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SN74ALS843

Features: • 3-State Buffer-Type Outputs Drive Bus Lines Directly• Bus-Structured Pinout• Provides Extra Bus-Driving Latches Necessary for Wider Address/Data Paths or Buses With Parity• Buffered Control Inputs to Reduce dc Loading Effects• Power-Up High-Impedance State...

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SeekIC No. : 004498194 Detail

SN74ALS843: Features: • 3-State Buffer-Type Outputs Drive Bus Lines Directly• Bus-Structured Pinout• Provides Extra Bus-Driving Latches Necessary for Wider Address/Data Paths or Buses With Par...

SN74ALS843 Data Sheet

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Part Number:
SN74ALS843
Supply Ability:
5000

Price Break

  • 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:

• 3-State Buffer-Type Outputs Drive Bus Lines Directly
• Bus-Structured Pinout
• Provides Extra Bus-Driving Latches Necessary for Wider Address/Data Paths or Buses With Parity
• Buffered Control Inputs to Reduce dc Loading Effects
• Power-Up High-Impedance State
• Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (NT) 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 . . . . .  . . .0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . ..65°C to 150°C


Description

This SN74ALS843 9-bit bus-interface D-type latch features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The SN74ALS843 nine latches are transparent D-type latches with noninverting data (D) inputs.

A buffered output-enable (OE) input places the nine outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.OE does not affect the internal operation of the latches. Previously stored data can be retained or new data can be entered while the outputs are off.The SN74ALS843 is characterized for operation from 0°C to 70°C.




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