The CMOS shift register and latches allow direct interfacing with microprocessor-based systems. With a 5 V supply, they will operate to at least 3.3 MHz. At 12 V, higher speeds are possible. Especially useful for inter-digit blanking, the BLANKING input disables the output source drives and turns on the DMOS sink drivers. Use with TTL may require the use of appropriate pull-up resistors to ensure an input logic high.