Details

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BUY DM74LS273WM https://www.utsource.net/itm/p/641594.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc		4.75		5.25	V
Output High Level Voltage	VOH	IOL = -0.4mA	2.4		Vcc-0.5	V
Output Low Level Voltage	VOL	IOH = 8mA			0.5	V
Input Leakage Current	IIH	VI = 2V	-1		1	μA
Input Leakage Current	IIL	VI = 0.8V	-1		1	μA
Propagation Delay Time	tpd	Vcc = 5V, TA = 25°C	9		36	ns
Power Dissipation	PD	Per Package		360		mW

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the specified range of 4.75V to 5.25V.

2. Input Signals:

   • Apply input signals that are compatible with TTL logic levels.
   • Be aware of input leakage currents which should not exceed ±1μA at typical operating conditions.

3. Output Load:

   • When sourcing current (output high), ensure the load does not exceed the maximum output high level voltage.
   • When sinking current (output low), ensure the load keeps the output within the specified low-level voltage range.

4. Timing Considerations:

   • Account for the propagation delay time in your circuit design to avoid timing issues. The typical propagation delay is around 9ns under standard conditions.

5. Thermal Management:

   • Monitor power dissipation to ensure it does not exceed 360mW per package to prevent overheating and potential damage.

6. Handling Precautions:

   • Handle the DM74LS273WM carefully as ESD (Electrostatic Discharge) can damage the device.
   • Avoid exceeding absolute maximum ratings as this can lead to permanent damage.

7. Storage:

   • Store in a dry, cool environment and follow anti-static storage practices to maintain device integrity.

(For reference only)