Details

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BUY 74F74 https://www.utsource.net/itm/p/12609029.html

Parameter	Symbol	Conditions	Min	Typical	Max	Unit
Supply Voltage	VCC	-	4.5	5.0	5.5	V
Output High Voltage	VOH	IO = -0.4 mA, VCC = 5V	2.7	-	3.0	V
Output Low Voltage	VOL	IO = 16 mA, VCC = 5V	0.4	-	0.5	V
Input High Voltage	VIH	-	2.0	-	3.5	V
Input Low Voltage	VIL	-	0.8	-	1.5	V
Propagation Delay Time (High to Low)	tpd(HL)	VCC = 5V, TA = 25掳C	3.5	-	6.0	ns
Propagation Delay Time (Low to High)	tpd(LH)	VCC = 5V, TA = 25掳C	3.5	-	6.0	ns
Setup Time	tsu	VCC = 5V, TA = 25掳C	3.0	-	5.0	ns
Hold Time	thold	VCC = 5V, TA = 25掳C	1.0	-	2.0	ns
Minimum Pulse Width	tpw(min)	VCC = 5V, TA = 25掳C	10	-	20	ns
Operating Temperature Range	TA	-	-40	-	85	掳C
Storage Temperature Range	TSTG	-	-65	-	150	掳C

Instructions for Using 74F74 D Flip-Flop

1. Power Supply:

   • Connect V_CC to +5V and GND to ground.
   • Ensure the supply voltage is within the specified range (4.5V to 5.5V).

2. Input Signals:

   • Data Input (D): Connect the data signal to the D pin.
   • Clock Input (CLK): Connect the clock signal to the CLK pin.
   • Set (S) and Reset (R) Inputs: These are active low inputs. Connect them to logic high (V_CC) when not in use.

3. Output Signals:

   • Q and Q?: These are the complementary outputs of the flip-flop. Q provides the non-inverted output, and Q? provides the inverted output.

4. Operation:

   • The flip-flop will capture the state of the D input on the rising edge of the clock signal (CLK).
   • If S is low, the Q output will be set to high regardless of the D input.
   • If R is low, the Q output will be reset to low regardless of the D input.
   • If both S and R are high, the flip-flop will follow the D input on the rising edge of the clock.

5. Timing Considerations:

   • Ensure that the setup time (t_su) and hold time (t_hold) requirements are met for reliable operation.
   • The minimum pulse width (t_pw(min)) for the clock signal must be observed to ensure proper triggering of the flip-flop.

6. Temperature Range:

   • The device is designed to operate within the temperature range of -40掳C to 85掳C. Store the device within the storage temperature range of -65掳C to 150掳C.

7. Handling:

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

8. Testing:

   • Before integrating the 74F74 into a circuit, test it using a simple test circuit to verify its functionality.

(For reference only)