Details

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BUY HD74HC157A https://www.utsource.net/itm/p/9448788.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC		2.0		6.0	V
Input Low Voltage	VIL	IL = 1.0mA		0.8	VCC/2	V
Input High Voltage	V<subIH	IH = -0.4mA	VCC/2	2.0		V
Output Low Voltage	VOL	IOL = 4mA	0.1		0.3	V
Output High Voltage	VOH	IOH = -4mA	2.4		VCC-0.5	V
Propagation Delay Time	tp	VCC = 4.5V, TA = 25掳C	6		9	ns
Power Dissipation	PD				100	mW

Instructions for Use:

1. Power Supply Connection: Connect the V_CC pin to the positive power supply and GND to ground. Ensure the supply voltage is within the specified range (2.0V to 6.0V).

2. Input Signals: Apply input signals to the data select (S) and data input pins (A, B). Ensure that the input voltages comply with the V_IL and V_IH specifications.

3. Output Handling: The output pin (Y) will provide the selected data based on the control signal. Ensure that the load connected to the output does not exceed the current rating and respects the V_OL and V_OH parameters.

4. Propagation Delay Consideration: Account for the propagation delay time in your timing calculations, especially in high-speed applications.

5. Thermal Management: Keep the power dissipation within the limit of 100mW to avoid overheating. If necessary, use appropriate heat sinking or cooling methods.

6. Storage and Handling: Store and handle the device in accordance with anti-static precautions to prevent damage from electrostatic discharge (ESD).

7. Operating Temperature Range: Ensure that the ambient temperature during operation remains within the recommended range specified by the manufacturer.

For detailed application circuits and advanced usage, refer to the datasheet provided by the manufacturer.

(For reference only)