IXYS

MX879

1

06/08/06

Drawing No. 087909

www.claremicronix.com

MX879

8-Channel, 60V Relay/Load Driver

Open Drain Output, 3 Wire Interface

Features:

• 8 Outputs Rated at 60V, 120mA

• Open Drain Pull-Up Driver Configuration

• 6V to 60V Driver Supply Range

• 2.7V to 5.5V Logic Supply Range

• 3 Wire Serial Interface plus Chip Select

• Captures Serial & Parallel Input Data

• Outputs can be paralleled

• 28 Lead QFN Package

Applications:

• White Goods

• ATE

• Industrial Equipment

• Automotive Relay Control

General Description

The MX879 is an 8 channel high voltage switch with

8-bit parallel or serial input control. The MX879

connects directly to a microprocessor through a

standard 3 wire serial interface. The open drain pull-

up output configuration can drive up to 60 volts at

120mA. Outputs can be paralleled for increased

drive current up to a device total of 600mA source.

The MX879 is designed to operate over a

temperature range of -40°C to +85°C, and is

available in a QFN-28 Package.

Ordering Information

Part No.

Description

Qty

087900-00

QFN-28

73

087941-00

QFN-28 Tape & Reel

2500

Functional Block Diagram

VCC

VPWR

CS*

SDO

IN7

IN6

OUT7

IN5

I/O

Register

Latch

Register

Driver

OUT6

IN4

OUT5

IN3

OUT4

IN2

OUT3

IN1

OUT2

IN 0

OUT1

OUT0

SCK

SDI

OE

GND

Parallel

In & Out

Level

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