Details

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BUY 74VHCT244AFT https://www.utsource.net/itm/p/1141582.html
Octal Buffer/Line Driver with 3-STATE Outputs; Package: TSSOP; No of Pins: 20; Container: Rail

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	1.65	-	5.5	V
Input Low Voltage	VIL	-	-	0.8	V	VCC = 3.3V
Input High Voltage	VIH	2.0	-	-	V	VCC = 3.3V
Output Low Voltage	VOL	-	0.1	0.4	V	IOL = 16mA, VCC = 3.3V
Output High Voltage	VOH	2.4	-	-	V	IOH = -4mA, VCC = 3.3V
Input Leakage Current	IIL	-	-	±1	μA	VCC = 3.3V
Output Leakage Current	IOL	-	-	±1	μA	VCC = 3.3V
Propagation Delay Time	tpd	-	2.5	4.5	ns	VCC = 3.3V, TA = 25°C
Power Dissipation	PD	-	-	100	mW	Per Package
Operating Temperature	TA	-40	-	125	°C
Storage Temperature	TSTG	-65	-	150	°C

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 1.65V to 5.5V.
   • Connect the ground (GND) pin to the system ground.

2. Input Signals:

   • Apply input signals within the specified input voltage levels (V_IL and V_IH).
   • Avoid exceeding the maximum input voltage to prevent damage to the device.

3. Output Signals:

   • Ensure the output load does not exceed the maximum current ratings (I_OL and I_OH).
   • Check the output voltage levels (V_OL and V_OH) to ensure proper logic levels.

4. Propagation Delay:

   • Account for the propagation delay time (t_pd) in your timing calculations to ensure reliable operation.

5. Temperature Considerations:

   • Operate the device within the specified operating temperature range (T_A).
   • Store the device within the storage temperature range (T_STG) to avoid damage.

6. Handling:

   • Handle the device with care to avoid static discharge, which can damage the sensitive components.
   • Follow proper ESD (Electrostatic Discharge) precautions during handling and installation.

7. Mounting:

   • Ensure proper soldering techniques to avoid thermal stress on the device.
   • Verify that the device is securely mounted to the PCB to prevent mechanical stress.

8. Testing:

   • Test the device under typical operating conditions to verify its functionality.
   • Use appropriate test equipment to measure the electrical parameters and ensure they meet the specifications.

(For reference only)