Details

---

BUY MM74HC688N https://www.utsource.net/itm/p/12610032.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	2.0		6.0	V
Input Low Voltage	VI(L)	VIL = 0.8V			1.5	V
Input High Voltage	VI(H)	VIH = 3.5V	2.0			V
Output Low Voltage	VO(L)	IO = 4mA			0.4	V
Output High Voltage	VO(H)	IO = -0.4mA	2.4			V
Propagation Delay Time	tpd	VCC = 4.5V to 5.5V, TA = 25掳C		18		ns
Power Dissipation	PD	Continuous			100	mW
Operating Temperature Range	Topr	Storage	-40		85	掳C

Instructions for MM74HC688N:

1. Power Supply Connection:

   • Connect the VCC pin to a power supply within the range of 2.0V to 6.0V.
   • Ensure the GND pin is properly grounded.

2. Input Signal Levels:

   • For a valid LOW input, the voltage should not exceed 1.5V.
   • For a valid HIGH input, the voltage should be at least 2.0V.

3. Output Signal Levels:

   • When an output is LOW, it should not exceed 0.4V when sourcing up to 4mA.
   • When an output is HIGH, it should be at least 2.4V when sinking up to 0.4mA.

4. Propagation Delay:

   • The typical propagation delay time is 18ns under standard operating conditions (VCC = 4.5V to 5.5V, TA = 25掳C).

5. Temperature Considerations:

   • The device operates reliably within a temperature range from -40掳C to 85掳C.

6. Power Dissipation:

   • Ensure that the power dissipation does not exceed 100mW continuously to avoid overheating.

7. Handling and Storage:

   • Store the device in a dry place away from direct sunlight.
   • Handle with care to avoid electrostatic discharge damage.

This table and set of instructions provide essential information for using the MM74HC688N effectively in digital circuit applications.

(For reference only)