Specifications
SKU: 908214
8-bit parallel-in/serial-out shift register
Parameter | Symbol | Min | Typ | Max | Unit | Notes |
---|---|---|---|---|---|---|
Supply Voltage | VCC | 2.0 | - | 6.0 | V | - |
Input Voltage (High) | VIH | - | 3.5 | VCC | V | - |
Input Voltage (Low) | VIL | 0 | - | 1.5 | V | - |
Output Voltage (High) | VOH | - | VCC - 0.1 | VCC | V | - |
Output Voltage (Low) | VOL | 0 | 0.1 | - | V | - |
Input Current (High) | IIH | - | - | 1.0 | μA | - |
Input Current (Low) | IIL | -1.0 | - | - | μA | - |
Output Current (Source) | IOH | - | - | 25 | mA | - |
Output Current (Sink) | IOL | -25 | - | - | mA | - |
Propagation Delay Time | tpd | - | 18 | 40 | ns | @ VCC = 4.5V, fo = 10 MHz |
Power Consumption | Ptot | - | 20 | - | mW | @ VCC = 4.5V, fo = 10 MHz |
Instructions for Use
Power Supply:
- Connect VCC to the positive supply voltage (2.0V to 6.0V).
- Connect GND to the ground.
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 VIH and VIL.
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.
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.
Output Enable:
- Connect the output enable pin (OE) to control the output state.
- OE: Active low, enables the outputs to drive the external circuitry.
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.
Propagation Delay:
- Consider the propagation delay time when designing the timing of your circuit to ensure proper synchronization.
Power Consumption:
- Monitor the power consumption to ensure it stays within the specified limits, especially at higher clock frequencies.
Decoupling Capacitors:
- Place decoupling capacitors (e.g., 100 nF) close to the VCC and GND pins to reduce noise and improve stability.
Handling Precautions:
- Handle the IC with care to avoid static damage.
- Store the IC in an anti-static bag when not in use.
Inquiry - 74HC166