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74FR25900

Features: *25 series resistors in the port A and B outputs elimi- nate the need for external resistors when driving MOS inputs such as DRAM arrays*9-bit data ports for systems carrying parity bits*Readback capability for system self checks.*Independent control lines for maximum flexibility*Guarant...

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SeekIC No. : 004250621 Detail

74FR25900: Features: *25 series resistors in the port A and B outputs elimi- nate the need for external resistors when driving MOS inputs such as DRAM arrays*9-bit data ports for systems carrying parity bits*R...

74FR25900 Data Sheet

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Part Number:
74FR25900
Supply Ability:
5000

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

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Upload time: 2024/11/23

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Product Details

Description



Features:

*25 series resistors in the port A and B outputs elimi-
  nate the need for external resistors when driving MOS
  inputs such as DRAM arrays
*9-bit data ports for systems carrying parity bits
*Readback capability for system self checks.
*Independent control lines for maximum flexibility
*Guaranteed multiple output switching and 250 pF load delays
*Outputs optimized for dynamic bus drive capability
*PINV parity control facilitates system diagnostics
*74FR900 option available without output series resistors


Pinout

Connection Diagram


Specifications

Storage Temperature.........................−65°C to +150°C
Ambient Temperature under Bias ......−55°C to +125°C
Junction Temperature under Bias.......−55°C to +150°C
VCC Pin Potential to Ground Pin ...............−0.5V to +7.0V
Input Voltage (Note 2) .............................−0.5V to +7.0V
Input Current (Note 2) .......................−30 mA to +5.0 mA
Voltage Applied to Output
   in HIGH State (with VCC = 0V)
   Standard Output ........................................−0.5V to VCC
   3-STATE Output ......................................−0.5V to +5.5V
Current Applied to Output
   in LOW State (Max) ..................Twice the Rated IOL (mA)
ESD Last Passing Voltage (Min) ...............................2000V


Description

    The 74FR25900 is a data bus multiplexer routing any of three 9-bit ports to any other one of the three ports. Read- back of data latched from any port onto itself is also possible. The 74FR25900 maintains separate control of all latch- enable, output enable and select inputs for maximum flexibility. PINV allows inversion of the data from the C8 to A8 or path. This is useful for control of the parity bit in systems B8 diagnostics.

    The 74FR25900 includes 25 resistors in series with A and B Port outputs. Resistors minimize undershoot and ringing which may damage or corrupt sensitive device inputs driven by these ports.




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