CD54HC166, CD54HCT166, CD74HC166, CD74HCT166 SCHS1.
CD54HCT166 - 8-Bit Parallel-In/Serial-Out Shift Register
CD54HCT166F3A - 8-Bit Parallel-In/Serial-Out Shift Register
54HCT166 - High-Speed CMOS Logic 8-Bit Parallel-In/Serial-Out Shift Register