Details

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BUY SN74LS273NS https://www.utsource.net/itm/p/478382.html
OCTAL, HEX, AND QUAD D-TYPE FLIP-FLOPS WITH ENABLE

Parameter	Conditions	Min	Typ	Max	Unit
Supply Voltage (VCC)		4.75	5	5.25	V
Output High Level (VOH)	IOH = -0.4mA		2.4		V
Output Low Level (VOL)	IOL = 16mA		0.4		V
Input Leakage Current	VI = 0 to VCC	-1		1	渭A
Propagation Delay Time	tPLH, tPHL @ VCC = 5V, TA = 25掳C		24		ns
Power Dissipation	Per Package			500	mW

Instructions for SN74LS273NS:

1. Power Supply Requirements:

   • Ensure the supply voltage (VCC) is within the specified range of 4.75V to 5.25V to prevent damage and ensure reliable operation.

2. Input Handling:

   • Be mindful of input leakage currents; inputs should not be left floating. Use pull-up or pull-down resistors as necessary.

3. Output Load:

   • The output high level (VOH) can drive loads up to a sink current of 0.4mA while maintaining a minimum output voltage of 2.4V.
   • For low-level outputs, the device can source up to 16mA with a maximum output voltage of 0.4V.

4. Timing Considerations:

   • The propagation delay time (tPLH, tPHL) is typically 24ns at room temperature (25掳C). Timing diagrams should be consulted for critical timing applications.

5. Thermal Management:

   • Monitor power dissipation; do not exceed 500mW per package to avoid overheating. Adequate heat sinking may be required in high-power applications.

6. Handling Precautions:

   • This device is sensitive to electrostatic discharge (ESD); use proper ESD precautions during handling and installation.

7. Storage and Operation Temperature:

   • Store and operate the device within recommended temperature ranges to ensure longevity and reliability. Refer to the datasheet for specific temperature limits.

(For reference only)