Details

---

BUY CD74HCT109EE4 https://www.utsource.net/itm/p/9011189.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	4.5		5.5	V
Input Low Voltage	VI(L)		0		0.8	V
Input High Voltage	VI(H)		2.0		VCC	V
Output Low Voltage	VO(L)	IO = 4 mA	0	0.1	0.2	V
Output High Voltage	VO(H)	IO = -0.4 mA	VCC-0.2	VCC-0.1	VCC	V
Propagation Delay Time	tpd	VCC = 5V		9		ns
Power Dissipation	PD				500	mW

Instructions for CD74HCT109EE4

1. Power Supply Requirements:

   • Ensure the supply voltage (VCC) is within the specified range of 4.5V to 5.5V.

2. Input Signal Levels:

   • Recognize that a valid low input signal should be less than 0.8V.
   • A valid high input signal should be greater than 2.0V, up to the supply voltage.

3. Output Signal Levels:

   • When sourcing current (output low), the output voltage should not exceed 0.2V.
   • When sinking current (output high), the output voltage should be close to the supply voltage, typically VCC - 0.1V.

4. Propagation Delay:

   • At a supply voltage of 5V, the typical propagation delay time is 9 nanoseconds.

5. Power Management:

   • Do not exceed the maximum power dissipation of 500mW to avoid damaging the device.

6. Handling and Installation:

   • Handle with care to prevent electrostatic discharge (ESD) damage.
   • Ensure proper installation on the circuit board to maintain optimal performance.

For more detailed specifications and application notes, refer to the manufacturer's datasheet.

(For reference only)