Details

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BUY SN74LS244N https://www.utsource.net/itm/p/11226661.html
IC BUF NON-INVERT 5.25V 20DIP

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VCC)	Operating supply voltage	4.75	5.0	5.25	V
Output High Level Voltage (VOH)	Output high level voltage at IOL = -0.4 mA	2.4	-	3.4	V
Output Low Level Voltage (VOL)	Output low level voltage at IOL = 8 mA	0.4	-	0.5	V
Input High Level Voltage (VIH)	Input high level voltage	2.0	-	-	V
Input Low Level Voltage (VIL)	Input low level voltage	-	-	0.8	V
Input Current (IIN)	Input current at VIN = 0 V or VCC	-1.0	-	1.0	μA
Output Current (IOL)	Output low level current	-	-	8.0	mA
Output Current (IOH)	Output high level current	-	-	-0.4	mA
Propagation Delay Time (tpd)	Propagation delay time from input to output	9	-	15	ns
Power Dissipation (PD)	Maximum power dissipation	-	-	500	mW

Instructions for Use:

1. Supply Voltage:

   • Ensure that the supply voltage (V_CC) is within the range of 4.75V to 5.25V to avoid damage to the device.

2. Input and Output Levels:

   • The input high level voltage (V_IH) should be at least 2.0V, and the input low level voltage (V_IL) should not exceed 0.8V.
   • The output high level voltage (V_OH) should be between 2.4V and 3.4V when the output is sourcing -0.4mA.
   • The output low level voltage (V_OL) should be between 0.4V and 0.5V when the output is sinking 8mA.

3. Current Ratings:

   • The maximum output low level current (I_OL) is 8mA.
   • The maximum output high level current (I_OH) is -0.4mA.
   • The input current (I_IN) should be between -1.0μA and 1.0μA.

4. Propagation Delay:

   • The propagation delay time (t_pd) from input to output is typically between 9ns and 15ns.

5. Power Dissipation:

   • The maximum power dissipation (P_D) is 500mW. Ensure that the device is not operated beyond this limit to prevent overheating and potential damage.

6. Handling:

   • Handle the SN74LS244N with care to avoid static discharge, which can damage the device.
   • Store the device in a dry environment to prevent moisture damage.

7. Circuit Design:

   • Use appropriate decoupling capacitors near the power supply pins to filter out noise and ensure stable operation.
   • Ensure that all unused inputs are tied to a known logic level (either V_CC or GND) to prevent floating inputs, which can cause unpredictable behavior.

8. Testing:

   • Before finalizing the design, test the circuit under various conditions to ensure reliable operation.
   • Verify that the propagation delay and current ratings are met in your specific application.

(For reference only)