The TC74HC166AP is a high-speed CMOS 8-bit shift register fabricated with silicon gate C2MOS technology. It offers high-speed operation similar to LSTTL while maintaining low power dissipation. The device features parallel-in or serial-in modes controlled by the SHIFT/LOAD input, along with an overriding clear input and a gated clock.
| Maximum Clock Frequency | 57 MHz (Typ.) at Vcc = 5V |
|---|---|
| Operating Voltage Range | 2V to 6V |
| Operating Temperature | -40°C to 85°C |
| Supply Voltage Range | -0.5V to 7V (Absolute Max) |
| Output Drive Immunity | 10 LSTTL Loads |
Clocking occurs on the low-to-high transition of the clock pulse.
It overrides all other inputs, including the clock, and sets all flip-flops to zero.