Details

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BUY TC74HC423AF. https://www.utsource.net/itm/p/12609660.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	2.0	-	5.5	V
Input Voltage (High)	VIH	-	-	VCC	V	IIH = 10 渭A
Input Voltage (Low)	VIL	0	-	0.8	V	IIL = -10 渭A
Output Voltage (High)	VOH	VCC - 0.1	-	VCC	V	IOH = -100 渭A
Output Voltage (Low)	VOL	0	-	0.1	V	IOL = 100 渭A
Propagation Delay Time	tpd	-	14	-	ns	VCC = 5V, TA = 25掳C
Power Dissipation	PD	-	-	100	mW	TA = 25掳C
Operating Temperature	TOP	-40	-	85	掳C
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 2.0V to 5.5V.
   • Connect the ground (GND) pin to a stable reference potential.

2. Input Signals:

   • Apply input signals that meet the specified high (V_IH) and low (V_IL) voltage levels.
   • Ensure input currents do not exceed the specified limits to avoid damage.

3. Output Signals:

   • The output voltages (V_OH and V_OL) should be within the specified ranges to ensure proper logic levels.
   • Do not exceed the maximum output current ratings to prevent overheating or damage.

4. Propagation Delay:

   • The typical propagation delay time (t_pd) is 14 ns at V_CC = 5V and TA = 25掳C. This can vary with different operating conditions.

5. Temperature Considerations:

   • Operate the device within the specified temperature range (T_OP) to ensure reliable performance.
   • Store the device within the storage temperature range (T_STG) to avoid degradation.

6. Power Dissipation:

   • Ensure the power dissipation (P_D) does not exceed 100 mW at room temperature (25掳C) to prevent thermal issues.

7. Handling and Storage:

   • Handle the device with care to avoid static discharge and physical damage.
   • Store in a dry, cool place to maintain the integrity of the device.

8. Mounting:

   • Follow recommended soldering profiles and mounting guidelines to ensure proper attachment to the PCB.
   • Avoid excessive mechanical stress on the pins during assembly.

9. Testing:

   • Perform initial testing under controlled conditions to verify correct operation.
   • Regularly monitor performance parameters to ensure continued reliability.

(For reference only)