Details

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BUY SN74ALS139NE4 https://www.utsource.net/itm/p/9043386.html

Parameter	Conditions	Min	Typ	Max	Unit
Supply Voltage (Vcc)	Operating	4.75		5.25	V
Propagation Delay Time (tpd)	Vcc = 5V, TA = 25°C		16		ns
Power Dissipation	Continuous		100		mW
Input Leakage Current (IIH)	VI = 2V to Vcc	-1		1	μA
Input Leakage Current (IIL)	VI = 0V to 0.8V	-1		1	μA
Output Leakage Current (IOH)	VO = 2.4V, II = 0.4mA	-0.4		-0.1	mA
Output Leakage Current (IOL)	VO = 0.4V, II = 8mA	1.6		24	mA
Storage Temperature Range		-65		150	°C
Operating Temperature Range		0		70	°C

Instructions for SN74ALS139NE4

1. Power Supply Connection:

   • Connect Vcc to a stable 5V supply within the specified range of 4.75V to 5.25V.
   • Ensure proper decoupling capacitors are placed close to the power pins to minimize noise.

2. Input Signal Levels:

   • Ensure that input signals do not exceed the supply voltage or go below ground to prevent damage.
   • Use appropriate pull-up or pull-down resistors if necessary to maintain signal integrity.

3. Output Load Considerations:

   • The device can drive up to 10LSTTL loads. Ensure that the total current drawn by the load does not exceed the maximum output current ratings.

4. Operating Temperature:

   • Operate the device within the temperature range of 0°C to 70°C for optimal performance and reliability.

5. Storage Handling:

   • Store in an environment where temperatures range from -65°C to 150°C to avoid degradation during non-operational periods.

6. Propagation Delay:

   • Account for the propagation delay of 16ns at typical conditions when designing timing-critical applications.

7. Power Dissipation:

   • Ensure that the power dissipation does not exceed 100mW continuously to avoid overheating. Adequate heat sinking or cooling might be required depending on the application.

(For reference only)