Details

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BUY SN74LS38N https://www.utsource.net/itm/p/11253616.html
IC GATE NAND 4CH 2-INP 14DIP

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Supply Voltage	VCC	4.75	5.0	5.25	V	-
Input Low Voltage	VIL	0.0	0.8	-	V	-
Input High Voltage	VIH	2.0	3.5	-	V	-
Output Low Voltage	VOL	0.0	0.4	0.5	V	-
Output High Voltage	VOH	2.7	3.5	5.0	V	-
Input Current (Low)	IIL	-1.6	-1	-0.4	mA	-
Input Current (High)	I<subIH	40	80	160	μA	-
Output Current (Low)	IOL	-8	-16	-24	mA	-
Output Current (High)	IOH	0.4	0.8	1.6	mA	-
Propagation Delay Time	tpd	9	15	22	ns	-
Power Dissipation	PD	-	-	100	mW	-
Operating Temperature Range	TA	-55	-	125	°C	-

Instructions for Using SN74LS38N:

1. Supply Voltage:

   • Ensure the supply voltage (V_CC) is within the range of 4.75V to 5.25V. Using voltages outside this range can damage the device.

2. Input Levels:

   • For a valid low input, the voltage should be between 0V and 0.8V.
   • For a valid high input, the voltage should be between 2.0V and 5.0V.

3. Output Levels:

   • The output will be considered low if the voltage is between 0V and 0.5V.
   • The output will be considered high if the voltage is between 2.7V and 5.0V.

4. Current Ratings:

   • Ensure that the input current does not exceed the specified limits to avoid damaging the device.
   • The output current should also be within the specified limits to prevent overloading.

5. Propagation Delay:

   • The propagation delay time (t_pd) is the time it takes for a change in input to affect the output. This value is crucial for timing considerations in your circuit.

6. Power Dissipation:

   • The maximum power dissipation (P_D) is 100mW. Ensure that the device is not dissipating more power than this to avoid overheating.

7. Operating Temperature:

   • The device is designed to operate within a temperature range of -55°C to 125°C. Ensure that the operating environment does not exceed these limits.

8. Handling Precautions:

   • Handle the device with care to avoid static discharge, which can damage the internal circuits.
   • Use appropriate decoupling capacitors near the power supply pins to filter out noise and ensure stable operation.

9. Pin Configuration:

   • Refer to the datasheet for the specific pin configuration and function of each pin on the SN74LS38N.

By following these guidelines, you can ensure reliable and efficient operation of the SN74LS38N in your circuit.

(For reference only)