SN74LS490N

BUY SN74LS490N https://www.utsource.net/itm/p/1531346.html
1A, 5V,±4% Tolerance, Negative Voltage Regulator, Ta = 0°C to +125&x0176;C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50

Instructions for Use

1. Supply Voltage:

   • Ensure the supply voltage (V_CC) is within the specified range of 4.75V to 5.25V to avoid damage to the device.

2. Input Levels:

   • Input signals should be within the specified input low (V_IL) and input high (V_IH) voltage ranges to ensure proper operation.

3. Output Levels:

   • The output low (V_OL) and output high (V_OH) voltages should be within the specified limits to ensure reliable interfacing with other logic circuits.

4. Propagation Delay:

   • The propagation delay time (t_p) is crucial for timing considerations in digital circuits. It should be considered when designing the system to avoid timing issues.

5. Power Dissipation:

   • The maximum power dissipation (P_D) should not exceed 100 mW to prevent overheating and potential damage to the device.

6. Temperature Ranges:

   • Operate the device within the specified operating temperature range (T_A) of -40°C to 85°C for commercial applications.
   • Store the device within the storage temperature range (T_STG) of -65°C to 150°C to ensure long-term reliability.

7. Handling:

   • Handle the device with care to avoid static discharge, which can damage the sensitive components. Use proper ESD protection measures.

8. Mounting:

   • Ensure proper mounting and soldering techniques to avoid mechanical stress on the device and ensure good electrical connections.

9. Testing:

   • Test the device under controlled conditions to verify its functionality before integrating it into a larger system.