74HC166

BUY 74HC166 https://www.utsource.net/itm/p/908214.html
8-bit parallel-in/serial-out shift register

Instructions for Use

1. Power Supply:

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

2. Data Input:

   • Connect the data input pin (D) to the source of serial data.
   • Ensure that the input voltage levels are within the specified range for V_IH and V_IL.

3. Clock Input:

   • Connect the clock input pin (CP) to the clock signal.
   • The clock signal should be a square wave with a frequency up to 10 MHz.

4. Shift Register Control:

   • Connect the shift register control pins (SRCLR and SRCLK) to control the operation of the shift register.
   • SRCLR: Active low, clears the shift register.
   • SRCLK: Clocks the data into the shift register on the rising edge.

5. Output Enable:

   • Connect the output enable pin (OE) to control the output state.
   • OE: Active low, enables the outputs to drive the external circuitry.

6. Output Pins:

   • The output pins (Q0 to Q7) will provide the parallel data from the shift register.
   • Ensure that the load connected to these pins does not exceed the maximum output current ratings.

7. Propagation Delay:

   • Consider the propagation delay time when designing the timing of your circuit to ensure proper synchronization.

8. Power Consumption:

   • Monitor the power consumption to ensure it stays within the specified limits, especially at higher clock frequencies.

9. Decoupling Capacitors:

   • Place decoupling capacitors (e.g., 100 nF) close to the V_CC and GND pins to reduce noise and improve stability.

10. Handling Precautions:

    • Handle the IC with care to avoid static damage.
    • Store the IC in an anti-static bag when not in use.