Details

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BUY SN74HC90N https://www.utsource.net/itm/p/9836254.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	2.0		6.0	V
Input High Voltage	VIH		3.15		Vcc	V
Input Low Voltage	VIL		0		0.8	V
Output High Voltage	VOH	IO = -0.4mA		2.4	Vcc-0.1	V
Output Low Voltage	VOL	IO = 8mA	0		0.1	V
Input Current	IIH	VI = VIL, VIH	-1		20	μA
Output Current	IOH	VO = VOH	-4		-0.4	mA
	IOL	VO = VOL	8		16	mA
Propagation Delay Time	tpd	VCC=4.5V to 5.5V		37		ns
Power Dissipation	PD				500	mW

Instructions for SN74HC90N

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the operating range of 2.0V to 6.0V.

2. Input Signals:

   • Apply input voltages that comply with the specified input high (VIH) and low (VIL) levels.
   • Keep the input current within the specified limits to avoid damage.

3. Output Signals:

   • The output voltages (VOH and VOL) should be within the specified ranges under the given load conditions.
   • Ensure the output current does not exceed the maximum ratings to prevent overheating or damage.

4. Propagation Delay:

   • Account for the propagation delay time in your timing calculations, especially in high-speed applications.

5. Power Dissipation:

   • Do not exceed the maximum power dissipation limit. Consider heat dissipation methods if operating near this limit.

6. Handling:

   • Handle the device carefully to avoid static damage. Use appropriate ESD protection measures.

7. Mounting:

   • Ensure proper mounting and connections to maintain performance and reliability.

8. Storage:

   • Store in a dry environment away from extreme temperatures to preserve functionality.

(For reference only)