Details

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BUY SN74AHCT139PW https://www.utsource.net/itm/p/9006931.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	2.0	-	5.5	V
Input Low Voltage	VI(L)	-0.5	-	0.8	V
Input High Voltage	VI(H)	2.0	-	5.5	V
Output Low Voltage	VO(L)	-0.5	-	0.4	V	IO = 4 mA
Output High Voltage	VO(H)	2.4	-	5.5	V	IO = -4 mA
Input Leakage Current	II	-1	-	1	μA	VI = 0V, 5V
Output Leakage Current	IOZ	-10	-	10	μA	VO = 0V, 5V
Propagation Delay Time	tpd	-	9	-	ns	VCC = 4.5V
Power Dissipation	PD	-	-	100	mW	Per Package

Instructions for SN74AHCT139PW

1. Power Supply: Ensure the supply voltage (VCC) is within the range of 2.0V to 5.5V. Avoid exceeding these limits to prevent damage.

2. Input Signals: Apply input signals that are within the specified input voltage levels. For a low signal, keep it between -0.5V and 0.8V; for a high signal, between 2.0V and 5.5V.

3. Output Handling: The output can sink or source current up to the specified limits. Monitor the output currents to avoid exceeding the leakage and propagation specifications.

4. Timing Considerations: Be aware of the propagation delay time when designing circuits. This parameter affects the timing of signal transitions through the device.

5. Thermal Management: Keep power dissipation within safe limits to ensure reliable operation. If necessary, provide adequate heat sinking or cooling.

6. Installation and Handling: Handle with care to avoid electrostatic discharge (ESD) damage. Follow proper installation procedures to ensure all connections are secure and correct.

7. Storage: Store in a dry, cool environment away from direct sunlight and sources of electromagnetic interference.

For detailed application notes and further information, refer to the official datasheet provided by the manufacturer.

(For reference only)