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SN74AS1843

Features: • Center VCC and GND Configuration Provides Minimum Lead Inductance in High Current Switching Applications• 3-State Buffer-Type Outputs Drive Bus-Lines Directly• Bus-Structured Pinout• Provide Extra Bus Driving Latches Necessary for Wider Address/Data Paths or Bus...

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SeekIC No. : 004498382 Detail

SN74AS1843: Features: • Center VCC and GND Configuration Provides Minimum Lead Inductance in High Current Switching Applications• 3-State Buffer-Type Outputs Drive Bus-Lines Directly• Bus-Stru...

SN74AS1843 Data Sheet

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Part Number:
SN74AS1843
Supply Ability:
5000

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

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Product Details

Description



Features:

• Center VCC and GND Configuration
  Provides Minimum Lead Inductance in High
  Current Switching Applications
• 3-State Buffer-Type Outputs Drive
  Bus-Lines Directly
• Bus-Structured Pinout
• Provide Extra Bus Driving Latches
  Necessary for Wider Address/Data Paths or
  Buses With Parity
• Buffered Control Inputs to Reduce DC Loading
• Power-Up High Impedance
• Package Options Include Plastic DIPs. Use
  the 4AS843 for Plastic and Ceramic Chip
  Carriers and "Small Outline" Package Options
• Dependable Texas Instruments Quality and Reliability


Pinout

Connection Diagram


Specifications

Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7 V
Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7 V
Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C


Description

This SN74AS1843 9-bit latch device features three-state outputsdesigned 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 SN74AS1843 nine latches are transparent D-type and have noninverting data (D) inputs.

A SN74AS1843 buffered output control (OC) input can be used to place the nine outputs in either a normal logic state (high or low 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 the bus lines in a
bus-organized system without need for interface or pullup components.

The SN74AS1843 output control (OC) does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are off.

The SN74AS1843 is characterized for operation from 0°C to 70°C.




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