DESCRIPTION
The M54977P is a semiconductor integrated circuit fabricated using Bi-CMOS technology. It contains a serial input to serial/parallel output 12-bit CMOS shift register and CMOS latch as well as bipolar 12-bit parallel-output driver.

FEATURES
● Serial input to serial/parallel output
● Cascade connections possible through serial output
● Latch circuit included for each stage
● Enable input for output control
● Low supply current .................................. ICC ≥ 10µA at standby
● Serial input/output level is compatible with standard CMOS
● Driver : Withstand voltage ...................................... BVCEO ≥ 30V
                Large drive current ................................ (IO(max)=200mA)
● Wide operating temperature range ..................... Ta=-20 – +75°C

APPLICATION
    Thermal printer head dot driver, Serial-to parallel conversion, Relay, solenoid driver