Details

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BUY 74LS321 https://www.utsource.net/itm/p/12536132.html

Parameter	Description	Value
Part Number	Identifies the specific component	74LS321
Function	Quad 2-input OR gates with open-collector outputs
Supply Voltage	Recommended operating supply voltage range	4.75V to 5.25V
Input Voltage	Maximum input voltage	Vcc + 0.5V
Output Current	Maximum output current (per output)	-40mA
Propagation Delay	Time delay from input change to output change	16ns
Power Dissipation	Maximum power dissipation at TA = 25掳C	100mW
Operating Temperature	Range of temperature for operation	0掳C to 70掳C
Storage Temperature	Range of temperature for storage	-65掳C to 150掳C
Mounting Type	Method of mounting on a circuit board	Through-hole

Instructions:

1. Power Supply Connection: Connect the Vcc pin to a power supply within the specified voltage range and GND pin to ground.
2. Signal Inputs: Apply logic signals to the input pins. Ensure that the input voltages do not exceed the supply voltage plus 0.5V.
3. Output Handling: Since the outputs are open-collector, connect pull-up resistors to the supply voltage for proper logic levels.
4. Heat Management: Ensure adequate heat dissipation if operating near maximum power dissipation limits.
5. Environmental Conditions: Operate within specified temperature ranges to ensure reliable performance.
6. Handling Precautions: Handle with care to avoid damage from electrostatic discharge (ESD). Use appropriate ESD protection measures.

(For reference only)