Details

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BUY DM74LS253N https://www.utsource.net/itm/p/111934.html
Octal D-Type Latch with 3-STATE Outputs

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	4.75	5.0	5.25	V
Input Voltage (High Level)	VIH	VIL = 0.8V, IIH = 20μA	2.0	-	5.25	V
Input Voltage (Low Level)	VIL	VIH = 2.0V, IIL = 0.4mA	0.0	-	0.8	V
Output Voltage (High Level)	VOH	IOL = 0.4mA	2.4	-	5.0	V
Output Voltage (Low Level)	VOL	IOH = 16mA	0.0	-	0.4	V
Propagation Delay Time	tpd	VCC = 5V, TA = 25°C	-	10	-	ns
Power Dissipation	PD	Maximum	-	-	100	mW
Operating Temperature Range	TA	Commercial	0	-	70	°C
Storage Temperature Range	TSTG	-	-65	-	150	°C

Instructions for Use:

1. Power Supply:

   • Ensure that the supply voltage (V_CC) is within the specified range of 4.75V to 5.25V.
   • Connect the ground (GND) pin to a stable 0V reference.

2. Input Signals:

   • Apply input signals (V_IH and V_IL) that meet the high and low level voltage requirements.
   • Avoid exceeding the maximum input current ratings.

3. Output Signals:

   • Ensure that the output loads do not exceed the maximum output current ratings.
   • Monitor the output voltages (V_OH and V_OL) to ensure they are within the specified levels.

4. Propagation Delay:

   • Account for the propagation delay time (t_pd) in your circuit design to ensure proper timing.

5. Temperature Considerations:

   • Operate the device within the specified temperature ranges to avoid damage or performance degradation.
   • Store the device in an environment within the storage temperature range to prevent damage during storage.

6. Handling and Storage:

   • Handle the device with care to avoid static discharge, which can damage the internal components.
   • Store the device in a dry, cool place to prevent moisture damage.

7. Mounting and Soldering:

   • Follow standard soldering practices to ensure reliable connections.
   • Avoid excessive heat during soldering to prevent damage to the device.

8. Testing:

   • Test the device under typical operating conditions to verify its functionality.
   • Use appropriate test equipment and methods to ensure accurate results.

(For reference only)