Details

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BUY MC74HC161N https://www.utsource.net/itm/p/12609247.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	2.0	-	6.0	V	-
Input Low Voltage	VIL	-	-	0.8	V	VCC = 4.5V to 5.5V
Input High Voltage	VIH	2.0	-	-	V	VCC = 4.5V to 5.5V
Output Low Voltage	VOL	-	0.1	0.2	V	IOL = 4mA, VCC = 4.5V to 5.5V
Output High Voltage	VOH	4.4	-	-	V	IOH = -0.4mA, VCC = 4.5V to 5.5V
Propagation Delay Time	tp	-	19	32	ns	VCC = 5V, TA = 25掳C
Power Consumption	ICC	-	1	10	渭A	VCC = 5V, TA = 25掳C
Operating Temperature Range	TA	-40	-	85	掳C	-

Instructions for Using the MC74HC161N:

1. Power Supply:

   • Connect V_CC to the positive supply voltage (2.0V to 6.0V) and GND to the ground.

2. Input Signals:

   • Clock (CP): The clock input is used to trigger the counting operation.
   • Preset (LD): When active low, this input loads the data from the parallel inputs (D0-D3) into the counter.
   • Count Enable (ENP, ENT): Both enable inputs must be high for the counter to operate. ENP enables the preset function, and ENT enables the count function.
   • Clear (CLR): When active low, this input resets the counter to zero.

3. Output Signals:

   • Q0-Q3: These are the binary outputs representing the current count value.
   • Ripple Carry Out (RCO): This output goes high when the counter reaches its maximum value (15 in binary).

4. Operation Modes:

   • Counting Mode: When both ENP and ENT are high, the counter increments on each rising edge of the clock signal.
   • Preset Mode: When LD is low, the counter loads the values from D0-D3 on the next rising edge of the clock.
   • Reset Mode: When CLR is low, the counter is reset to zero regardless of the state of other inputs.

5. Timing Considerations:

   • Ensure that the propagation delay time (t_p) is considered when designing the timing of your circuit to avoid race conditions or metastability issues.

6. Power Consumption:

   • The device has a low power consumption, typically around 1 渭A at 5V, making it suitable for battery-powered applications.

7. Temperature Range:

   • The operating temperature range is from -40掳C to 85掳C, making it suitable for a wide range of environmental conditions.

8. Handling:

   • Handle the device with care to avoid static damage. Use proper ESD protection when handling and soldering the component.

By following these parameters and instructions, you can effectively integrate the MC74HC161N into your digital circuits for synchronous binary counting and other logic functions.

(For reference only)