Details

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BUY TC74VHC244FK https://www.utsource.net/itm/p/12600012.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	2.0	-	5.5	V
Input Voltage	VI	Relative to GND	-0.5	-	VCC + 0.5	V
Output Voltage (High)	VOH	IOL = -400 渭A	-	-	VCC - 0.1	V
Output Voltage (Low)	VOL	IOH = 16 mA	0.2	-	-	V
Input Leakage Current	IIL	VI = 0 V, VCC = 5 V	-1	-	1	渭A
Output Leakage Current	IOL	VO = 0 V, VCC = 5 V	-1	-	1	渭A
Propagation Delay Time	tpd	VCC = 5 V, TA = 25掳C	4	-	8	ns
Power Dissipation	PD	Continuous	-	-	340	mW
Operating Temperature	TA	Operating	-40	-	85	掳C
Storage Temperature	TSTG	Storage	-65	-	150	掳C

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 2.0 V to 5.5 V.
   • Connect the ground (GND) pin to a stable reference point.

2. Input Handling:

   • The input voltage (V_I) should not exceed V_CC + 0.5 V or go below -0.5 V to avoid damage.
   • Ensure input signals are clean and stable to prevent unintended switching.

3. Output Handling:

   • The output high voltage (V_OH) will be close to V_CC when the output is high, with a typical drop of 0.1 V.
   • The output low voltage (V_OL) will be close to 0 V when the output is low, with a typical rise of 0.2 V.
   • Ensure the load connected to the output does not exceed the maximum current ratings.

4. Timing Considerations:

   • The propagation delay time (t_pd) is the time it takes for a change at the input to appear at the output. It ranges from 4 ns to 8 ns at V_CC = 5 V and 25掳C.

5. Thermal Management:

   • The device can dissipate up to 340 mW continuously. Ensure proper heat sinking if operating near this limit.
   • The operating temperature range is -40掳C to 85掳C. Avoid exceeding these limits to prevent thermal damage.

6. Storage:

   • Store the device in a dry, cool place within the storage temperature range of -65掳C to 150掳C to maintain reliability.

7. Handling Precautions:

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

8. Mounting:

   • Ensure proper mounting to avoid mechanical stress on the pins and package.
   • Use appropriate soldering techniques to ensure reliable connections.

(For reference only)