The 74F166 is a high speed 8-bit shift register that has fully synchronous serial parallel data entry selected by an active low parallel enable (PE) input. It also supports synchronous serial data input for easy expansion, clock enable for ”do nothing” mode, asynchronous master reset, and is expandable to 16 bits in 8-bit increments. The 74F166 has an industrial temperature range available (-40°C to +85°C).
The Philips 74F166 is a high-speed 8-bit shift register featuring fully synchronous serial and parallel data entry. It allows data to be entered in parallel when the Parallel Enable (PE) input is low, or shifted serially from the Data Serial (Ds) input when PE is high. The device includes a clock enable input for a 'do nothing' mode and an asynchronous master reset to clear the register.
| Operating temperature (Commercial) | 0 to +70 °C |
|---|---|
| Operating temperature (Industrial) | -40 to +85 °C |
Data is entered into the register when the PE input is low, requiring a setup time before the low-to-high clock transition.
Data is entered from the serial data input (Ds), and remaining bits are shifted one place to the right with each positive clock transition.
Yes, it can be expanded to 16 bits in 8-bit increments by connecting the Q7 output to the Ds input of the succeeding stage.