Details

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BUY 74HCT648N https://www.utsource.net/itm/p/12607428.html

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Supply Voltage	VCC	2.0	-	5.5	V	-
Input Low Voltage	VIL	-	0.8	-	V	VCC = 5V
Input High Voltage	VIH	-	2.0	-	V	VCC = 5V
Output Low Voltage	VOL	-	0.4	0.5	V	IOL = 16mA
Output High Voltage	VOH	4.5	4.9	-	V	IOH = -4mA, VCC = 5V
Propagation Delay Time	tpd	-	10	18	ns	VCC = 5V, TA = 25掳C
Power Dissipation	Pd	-	-	100	mW	Per Package
Operating Temperature	TA	-40	-	85	掳C	-
Storage Temperature	TSTG	-65	-	150	掳C	-

Instructions for Use:

1. Power Supply:

   • Connect the V_CC pin to a power supply between 2.0V and 5.5V.
   • Ground the GND pin.

2. Input Signals:

   • Ensure input signals are within the specified range (V_IL and V_IH) for reliable operation.
   • Avoid floating inputs; use pull-up or pull-down resistors as needed.

3. Output Loads:

   • Do not exceed the maximum output current ratings (I_OL and I_OH).
   • Ensure the load is within the output voltage specifications (V_OL and V_OH).

4. Propagation Delay:

   • Account for the propagation delay time (t_pd) when designing timing-sensitive circuits.

5. Temperature Considerations:

   • Operate the device within the specified temperature range (T_A) for optimal performance.
   • Store the device within the storage temperature range (T_STG) to prevent damage.

6. Handling:

   • Handle the device with care to avoid static damage.
   • Follow ESD (Electrostatic Discharge) precautions during handling and assembly.

7. Mounting:

   • Ensure proper soldering techniques to avoid thermal stress on the device.
   • Use appropriate PCB layout and grounding techniques to minimize noise and interference.

8. Testing:

   • Test the device under typical operating conditions to ensure it meets the specified parameters.
   • Use a multimeter or oscilloscope to verify voltage levels and signal integrity.

(For reference only)