 2019 Microchip Technology Inc.

DS20005779A-page 1

HV7620

Features

• 5V Logic and 12V Supply Rail

• Up to +200V Output Voltage

• Low-power Level Shifting

• 50 mA Minimum Source and Sink Currents

• 40 MHz Equivalent Data Rate

• Latched Data Outputs

• Forward and Reverse Shifting Options (DIR Pin)

• Chip Select

• Polarity Function

Applications

• Display Driver

• Print Head Driver

• MEMS Applications

General Description

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 four 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 clockwise (CW) shifting of the data

shifting when connected to LVGND. Operation of the

shift register is not affected by the LE (latch enable)

input. Transfer of data from the shift registers to the

latches occurs when the LE input is high. Data is stored

in the latches when LE is low. The current source on the

logic inputs provides active pull up when the input pins

are open.

Package Type

See Table 2-1 for pin information.

64-lead PQFP

(Top view)

1

64

40 MHz 32-Channel Serial-to-Parallel Converter with Push-Pull Outputs