Details

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BUY SN74S74N. https://www.utsource.net/itm/p/12609006.html

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Supply Voltage	VCC	4.75	-	5.25	V	Operating Range
Output High Voltage	VOH	-	2.4	3.4	V	IOL = 0.4 mA, VCC = 5V
Output Low Voltage	VOL	0.0	0.4	0.5	V	IOL = 16 mA, VCC = 5V
Input High Voltage	VIH	2.0	-	-	V
Input Low Voltage	VIL	-	-	0.8	V
Propagation Delay Time	tpd	12	-	22	ns	VCC = 5V, TA = 25掳C
Set to Q High	ts	20	-	35	ns	VCC = 5V, TA = 25掳C
Reset to Q Low	tr	20	-	35	ns	VCC = 5V, TA = 25掳C
Minimum Pulse Width	tpw(min)	20	-	35	ns	VCC = 5V, TA = 25掳C
Maximum Clock Frequency	fMAX	-	-	35	MHz	VCC = 5V, TA = 25掳C
Power Dissipation	Pd	-	-	100	mW	Per Package
Operating Temperature	TA	-40	-	85	掳C	Commercial Grade
Storage Temperature	TSTG	-65	-	150	掳C

Instructions for Use:

1. Power Supply:

   • Ensure 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 logic high (V_IH) or low (V_IL) signals to the set (S) and reset (R) inputs as required.
   • Ensure input signals meet the minimum and maximum voltage levels specified.

3. Output Signals:

   • The Q and Q? outputs will reflect the state of the flip-flop based on the set and reset inputs.
   • Ensure the output loads do not exceed the current ratings for V_OH and V_OL.

4. Timing:

   • Pay attention to the propagation delay time (t_pd) to ensure proper timing in your circuit.
   • The minimum pulse width (t_pw(min)) must be observed to avoid metastability issues.

5. Temperature:

   • Operate the device within the specified temperature range to ensure reliable performance.
   • Store the device in the recommended storage temperature range to prevent damage.

6. Handling:

   • Handle the device with care to avoid static discharge, which can damage the internal circuits.
   • Follow standard ESD (Electrostatic Discharge) precautions when handling the device.

7. Mounting:

   • Mount the device on a PCB with appropriate soldering techniques to ensure good electrical connections.
   • Ensure proper heat dissipation if operating at higher power levels or temperatures.

(For reference only)