The 9-bit CMOS shift register and latches allow operation with most microprocessor/LSI-based systems. With a 5 V logic supply, these BiMOS devices will operate at data input rates greater than 3.3 MHz. The CMOS inputs cause minimum loading and are compatible with standard CMOS, PMOS, NMOS, and TTL circuits. A CMOS serial data output allows cascade connections in applications requiring additional drive lines as required for 24-wire printheads.