The HV7620 is a low-voltage serial to high-voltage parallel converter with push-pull outputs. This device has been designed for use as a driver for color AC plasma displays. The device has 4 parallel 8-bit shift registers permitting data rates four times the speed of one. The data is clocked in simultaneously on all four data inputs with a single clock. Data is shifted in on a low to high transition of the clock. The latches and control logic perform the output enable function. The DIR pin causes clockwis