Details

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BUY 74HCT74 https://www.utsource.net/itm/p/12597163.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	2.0	-	6.0	V	-
Input Low Voltage	VIL	-	-	1.5	V	VCC = 4.5V to 5.5V
Input High Voltage	VIH	3.5	-	-	V	VCC = 4.5V to 5.5V
Output Low Voltage	VOL	-	0.4	0.5	V	IOL = 4mA
Output High Voltage	VOH	4.7	-	-	V	IOH = -0.4mA
Propagation Delay Time	tpd	-	14	-	ns	VCC = 5V, TA = 25掳C
Power Dissipation	PD	-	-	100	mW	Per Package
Operating Temperature	TA	-40	-	85	掳C	-
Storage Temperature	TSTG	-65	-	150	掳C	-

Instructions for Use

1. Power Supply:

   • Connect V_CC to the positive supply (2.0V to 6.0V) and GND to the ground.
   • Ensure the power supply is stable and within the specified range to avoid damage to the device.

2. Input Signals:

   • Apply input signals to the data (D) and clock (CP) pins.
   • The input low voltage (V_IL) should be less than 1.5V, and the input high voltage (V_IH) should be greater than 3.5V for reliable operation.

3. Output Signals:

   • The output low voltage (V_OL) will be less than 0.5V when the output is low, and the output high voltage (V_OH) will be greater than 4.7V when the output is high.
   • Ensure that the load connected to the output does not exceed the maximum current ratings.

4. Propagation Delay:

   • The propagation delay time (t_pd) is typically 14ns at V_CC = 5V and T_A = 25掳C. This is the time it takes for the output to change state after the input changes.

5. Temperature Considerations:

   • The operating temperature range is from -40掳C to 85掳C. Ensure the device operates within this range to maintain reliability.
   • The storage temperature range is from -65掳C to 150掳C, which is important for handling and storage conditions.

6. Handling and Storage:

   • Handle the device with care to avoid static discharge, which can damage the internal circuits.
   • Store the device in a dry, cool place within the specified storage temperature range.

7. Power Dissipation:

   • The maximum power dissipation per package is 100mW. Ensure adequate heat dissipation if the device is operated near its maximum power rating.

8. Pin Configuration:

   • Refer to the datasheet for the specific pin configuration of the 74HCT74 dual D-type flip-flop. Common pins include V_CC, GND, D (Data), CP (Clock), Q (Output), and Q? (Complement Output).

By following these guidelines, you can ensure optimal performance and reliability of the 74HCT74 dual D-type flip-flop in your circuit design.

(For reference only)