Details

---

BUY SN74S140N https://www.utsource.net/itm/p/11716607.html
IC GATE NAND 2CH 4-INP 14DIP

Parameter	Symbol	Min	Typ	Max	Unit
Operating Supply Voltage	VCC	4.75	-	5.25	V
Input Low Voltage	VIL	0.0	-	0.8	V
Input High Voltage	VIH	2.0	-	5.25	V
Output Low Voltage	VOL	0.0	-	0.5	V
Output High Voltage	VOH	2.4	-	5.25	V
Input Leakage Current	IIL	-100	-	100	μA
Output Sink Current	IOL	-	-	16	mA
Output Source Current	IOH	-	-	-0.4	mA
Propagation Delay Time	tpd	-	15	-	ns
Power Dissipation	PD	-	-	500	mW

Instructions for Use:

1. Supply Voltage:

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

3. Output Levels:

   • The output will be low (V_OL) when it is between 0V and 0.5V.
   • The output will be high (V_OH) when it is between 2.4V and 5.25V.

4. Current Ratings:

   • The maximum sink current (I_OL) the output can handle is 16mA.
   • The maximum source current (I_OH) the output can handle is 0.4mA.

5. Propagation Delay:

   • The typical propagation delay time (t_pd) is 15ns. This is the time it takes for the output to respond to a change in input.

6. Power Dissipation:

   • The maximum power dissipation (P_D) should not exceed 500mW to prevent overheating and potential damage to the device.

7. Handling:

   • Handle the device with care to avoid static discharge which can damage the sensitive components.
   • Store and use the device in a clean, dry environment to prevent contamination and corrosion.

8. Layout Considerations:

   • Ensure proper grounding and decoupling capacitors are used to minimize noise and improve stability.
   • Keep signal traces as short as possible to reduce parasitic inductance and capacitance.

9. Testing:

   • Before integrating the SN74S140N into a circuit, test it with known good signals to verify its functionality.

10. Compliance:

    • Ensure that the device complies with all relevant safety and regulatory standards for your application.

(For reference only)