HD74LS156P

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2-To-4-Line Demultiplexer

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 4.75V to 5.25V.
   • Connect the ground (GND) pin to a stable 0V reference.

2. Input Signals:

   • Input signals should be within the specified input high (V_IH) and input low (V_IL) voltage levels.
   • Avoid applying voltages outside the V_CC and GND range to prevent damage.

3. Output Signals:

   • The output high (V_OH) and output low (V_OL) voltages should meet the specified levels under the given current conditions.
   • Ensure the load connected to the outputs does not exceed the maximum current ratings.

4. Propagation Delay:

   • The propagation delay time (t_pd) is the time it takes for a change in the input signal to affect the output signal. It is typically 22 ns at V_CC = 5V and T_A = 25掳C.

5. Thermal Considerations:

   • The device can operate within an ambient temperature range of -40掳C to 85掳C.
   • Store the device within the storage temperature range of -65掳C to 150掳C to ensure long-term reliability.

6. Power Dissipation:

   • The maximum power dissipation (P_D) is 100 mW. Ensure proper heat sinking or cooling if operating near this limit.

7. Handling:

   • Handle the device with care to avoid static discharge and physical damage.
   • Follow standard ESD (Electrostatic Discharge) precautions when handling the component.

8. Circuit Design:

   • Use decoupling capacitors (typically 0.1 渭F) close to the V_CC and GND pins to filter out noise and provide stable operation.
   • Ensure all unused inputs are tied to either V_CC or GND to prevent floating states.