74HC688AP: Top Choice in United States (USA) Utsource Holding Company Limited

Description

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Supply Voltage	V_CC	2.0	-	6.0	V	Recommended operating range is 2.0V to 6.0V
Input Low Voltage	V_IL	-	0.3	1.5	V	Input voltage for logic low
Input High Voltage	V_IH	3.5	-	V_CC	V	Input voltage for logic high
Output Low Voltage	V_OL	-	0.1	0.4	V	Output voltage for logic low (I_OL = 4 mA)
Output High Voltage	V_OH	2.4	-	V_CC - 0.1	V	Output voltage for logic high (I_OH = -0.4 mA)
Input Leakage Current	I_IL	-1.0	0	1.0	μA	Maximum leakage current at input pins
Output Sink Current	I_OL	-	25	70	mA	Maximum sink current per output pin
Output Source Current	I_OH	-	25	70	mA	Maximum source current per output pin
Propagation Delay Time	t_pd	-	12	25	ns	Propagation delay time from input to output (V_CC = 5V)
Power Consumption	P_T	-	10	20	mW	Total power consumption at V_CC = 5V, all inputs high

Power Supply:
- Connect V_CC to the positive supply voltage (2.0V to 6.0V).
- Connect GND to the ground.
Input Connections:
- Connect the input pins (A0-A7, B0-B7) to your logic signals.
- Ensure that the input voltages are within the specified range (V_IL and V_IH).
Output Connections:
- The outputs (Y0-Y7) will indicate the result of the comparison.
- Ensure that the load connected to the output pins does not exceed the maximum sink or source current ratings.
Propagation Delay:
- The propagation delay time (t_pd) is the time it takes for the output to change state after the input changes. This is typically around 12 ns at V_CC = 5V.
Power Consumption:
- The device has a typical power consumption of 10 mW when all inputs are high and V_CC is 5V.
Handling:
- Handle the device with care to avoid static damage.
- Store and use the device in a controlled environment to prevent damage from humidity and temperature extremes.
Application:
- The 74HC688AP is an 8-bit magnitude comparator. It compares two 8-bit binary numbers (A0-A7 and B0-B7) and provides outputs indicating whether A is less than, equal to, or greater than B.

By following these guidelines, you can ensure reliable operation of the 74HC688AP in your circuit.

(For reference only)