74F74DC: Top Choice in United States (USA) Utsource Holding Company Limited

Description

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Supply Voltage	V_CC	4.5	5.0	5.5	V
Input High Voltage	V_IH	2.0	-	5.5	V
Input Low Voltage	V_IL	0.0	-	0.8	V
Output High Voltage	V_OH	2.4	-	5.0	V	I_OL = 0.4 mA
Output Low Voltage	V_OL	0.0	-	0.4	V	I_OL = 16 mA
Propagation Delay	t_pd	-	3.5	7.0	ns	V_CC = 5V, T_A = 25°C
Setup Time	t_su	4.0	-	-	ns	V_CC = 5V, T_A = 25°C
Hold Time	t_h	1.0	-	-	ns	V_CC = 5V, T_A = 25°C
Clock Pulse Width	t_pw	10	-	-	ns	V_CC = 5V, T_A = 25°C
Maximum Operating Frequency	f_MAX	-	70	-	MHz	V_CC = 5V, T_A = 25°C

Power Supply:
- Ensure the supply voltage (V_CC) is within the range of 4.5V to 5.5V.
- Connect the ground (GND) pin to a stable 0V reference.
Input Signals:
- Apply input signals (D, CLR, PRE, CLK) with voltages that meet the specified input high (V_IH) and input low (V_IL) levels.
- Ensure the setup time (t_su) and hold time (t_h) requirements are met to avoid metastability issues.
Output Signals:
- The output signals (Q, Q?) will be driven to the specified output high (V_OH) and output low (V_OL) levels.
- Ensure the load current does not exceed the maximum ratings for I_OL and I_OH.
Clock Signal:
- Use a clock pulse width (t_pw) of at least 10 ns to ensure reliable operation.
- The maximum operating frequency (f_MAX) is 70 MHz under standard conditions.
Reset and Set Inputs:
- Active-low reset (CLR) and set (PRE) inputs should be used to initialize the flip-flop state.
- Both CLR and PRE should be held low for at least one clock cycle to ensure proper initialization.
Storage and Handling:
- Store the device in a dry environment to prevent moisture damage.
- Handle the device with care to avoid static discharge, which can damage the internal circuitry.
Testing and Troubleshooting:
- Verify all connections and power supply levels before testing.
- Use a logic analyzer or oscilloscope to check the timing parameters and signal levels.

By following these guidelines, you can ensure the reliable operation of the 74F74DC dual D-type flip-flop.

(For reference only)