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SN74LS181N

Specifications

SKU: 958736

BUY SN74LS181N https://www.utsource.net/itm/p/958736.html
General purpose transistor
Parameter Symbol Min Typical Max Unit Notes
Power Supply Voltage VCC 4.75 5.0 5.25 V
Output High Level VOH - 2.4 3.6 V @ IL = 0.4 mA
Output Low Level VOL 0.0 0.4 0.5 V @ IH = 8 mA
Input High Level VIH 2.0 3.5 - V
Input Low Level VIL - 0.8 1.5 V
Propagation Delay Time (Typ) tpd - 12 15 ns
Power Dissipation Pd - 125 - mW
Operating Temperature Range TA 0 - 70 °C Commercial Grade
Storage Temperature Range TSTG -65 - 150 °C

Instructions for Using SN74LS181N:

  1. Power Supply:

    • Connect the VCC pin to +5V and the GND pin to ground.
    • Ensure the power supply voltage is within the specified range (4.75V to 5.25V).
  2. Input Signals:

    • Apply input signals to the A0-A3 and B0-B3 pins for the two 4-bit binary numbers.
    • Use the M (Mode) pin to select between arithmetic and logic operations:
      • M = 0 for logic functions.
      • M = 1 for arithmetic functions.
  3. Control Inputs:

    • Set the S0-S3 control inputs to select the specific function you want to perform.
    • Refer to the function table in the datasheet for the correct settings of S0-S3.
  4. Carry Inputs:

    • Connect the C0 (carry-in) pin to either ground (for no carry-in) or a logic high level (for carry-in).
    • The C4 (carry-out) pin can be used to chain multiple SN74LS181N devices for wider word lengths.
  5. Output Signals:

    • The F0-F3 pins will provide the 4-bit result of the operation.
    • The G and P outputs can be used for carry-lookahead logic when chaining multiple devices.
  6. Propagation Delay:

    • Account for the propagation delay time (tpd) in your circuit design to ensure proper timing.
  7. Temperature Considerations:

    • Operate the device within the specified temperature range (0°C to 70°C for commercial grade) to avoid damage or unreliable performance.
  8. Storage:

    • Store the device in a dry environment within the storage temperature range (-65°C to 150°C) to prevent damage.
  9. Handling:

    • Handle the device with care to avoid static discharge, which can damage the internal circuits.
    • Use appropriate ESD protection measures during handling and installation.
(For reference only)

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