Details

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Below is the parameter table and instructions for the SN74HC74PWR dual D-type flip-flop with preset and clear.

Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	2.0	5.0	6.0	V
Input Low Voltage	VIL	0.3	-	-	V	VCC = 4.5V to 5.5V
Input High Voltage	VIH	-	-	2.0	V	VCC = 4.5V to 5.5V
Output Low Voltage	VOL	0.1	0.4	0.5	V	IOL = 4.0 mA, VCC = 4.5V to 5.5V
Output High Voltage	VOH	2.7	3.4	4.4	V	IOH = -0.4 mA, VCC = 4.5V to 5.5V
Input Leakage Current	IIL	-1.0	-0.4	0.4	渭A	VCC = 4.5V to 5.5V
Output Leakage Current	IOL	-1.0	-0.4	0.4	渭A	VCC = 4.5V to 5.5V
Propagation Delay Time (High to Low)	tpdH	8	12	18	ns	VCC = 4.5V to 5.5V, TA = 25掳C
Propagation Delay Time (Low to High)	tpdL	8	12	18	ns	VCC = 4.5V to 5.5V, TA = 25掳C
Maximum Operating Frequency	fMAX	-	-	35	MHz	VCC = 4.5V to 5.5V, TA = 25掳C

Instructions

1. Power Supply:

   • Connect the V_CC pin to the positive supply voltage (2.0V to 6.0V).
   • Connect the GND pin to the ground.

2. Input Signals:

   • Apply the data input (D) to the D pins.
   • Apply the clock signal (CP) to the CP pins.
   • Apply the preset (PR) and clear (CLR) signals to the PR and CLR pins, respectively. These inputs are active low.

3. Output Signals:

   • The Q and Q? outputs will reflect the state of the D input at the rising edge of the clock signal, provided that PR and CLR are both high.
   • If PR is low, the output Q will be set to high regardless of the clock or D input.
   • If CLR is low, the output Q will be set to low regardless of the clock or D input.

4. Operating Conditions:

   • Ensure that the supply voltage is within the specified range (2.0V to 6.0V).
   • Keep the operating temperature within the recommended range (-40掳C to 85掳C).

5. Handling:

   • Handle the device with care to avoid damage from electrostatic discharge (ESD).
   • Use proper grounding and ESD protection when handling the device.

6. Testing:

   • Before using the device in a circuit, test it with a known good setup to ensure proper functionality.
   • Verify the propagation delay and other timing parameters to ensure they meet your application requirements.

By following these instructions and parameters, you can effectively use the SN74HC74PWR dual D-type flip-flop in your designs.

(For reference only)