Details

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BUY SN74LS19AD https://www.utsource.net/itm/p/6402926.html
SCHMITT-TRIGGER POSITIVE-NAND GATES AND INVERTERS WITH TOTEM-POLE OUTPUTS

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC		4.75		5.25	V
Input Voltage (High)	VIH	IIH = 20 μA	2.0		5.25	V
Input Voltage (Low)	VIL	IIL = -0.4 mA	0		0.8	V
Output Voltage (High)	VOH	IOH = -0.4 mA	2.4		5.25	V
Output Voltage (Low)	VOL	IOL = 16 mA	0		0.5	V
Propagation Delay Time	tpd	VCC = 5V, TA = 25°C	9		15	ns
Power Dissipation	PD	Per Package			100	mW
Operating Temperature	TA	Commercial Grade	0		70	°C
Storage Temperature	TSTG		-65		150	°C

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 4.75V to 5.25V.
   • Connect V_CC to the positive power supply and GND to the ground.

2. Input Signals:

   • Apply input signals such that the high level (V_IH) is at least 2.0V and the low level (V_IL) is no more than 0.8V.
   • Ensure the input current does not exceed the specified limits.

3. Output Signals:

   • The output high level (V_OH) should be at least 2.4V when sourcing -0.4mA.
   • The output low level (V_OL) should be no more than 0.5V when sinking 16mA.

4. Propagation Delay:

   • The propagation delay time (t_pd) is the time it takes for a change in the input signal to affect the output signal. It should be between 9ns and 15ns under standard conditions.

5. Thermal Management:

   • Ensure the operating temperature (T_A) is within the commercial grade range of 0°C to 70°C.
   • Store the device in an environment where the storage temperature (T_STG) ranges from -65°C to 150°C.

6. Power Dissipation:

   • The maximum power dissipation per package is 100mW. Ensure adequate heat dissipation if the device is expected to operate near this limit.

7. Handling:

   • Handle the device with care to avoid damage from electrostatic discharge (ESD).
   • Follow proper soldering techniques to prevent thermal shock.

8. Testing:

   • Test the device under the specified conditions to ensure it meets the performance parameters listed in the table.

(For reference only)