SMD1102 datasheet(2/14 Pages) SUMMIT

2 / 14 page

SMD1102 / 1103 / 1113

2033 8.1 10/04/01

SUMMIT MICROELECTRONICS, Inc.

PIN CONFIGURATION

The SMD1102, SMD1103 and SMD1113 each contain a

10-Bit data acquisition system (DAS) with dedicated EE-

PROM alarm limit storage. The three devices communi-

cate with the host µP via a standard two-wire I2C serial

interface. After initialization the SMD1102/1103/1113 can

INTRODUCTION

PIN NAMES

automatically monitor one or more analog input channels.

If any input signal moves beyond its user-programmed

limits the host is notified by the SMBALERT# output, enabling

fault prediction in telecom line card applications, as an

example.

1102

AIN0, AIN1

Analog channel inputs

GND

Power supply return

REFIN

Reference input

SCL

Serial Clock

SDA

Serial Data

SMBALERT#

Interrupt output

VDD

Power Supply

1103

AIN0, AIN1, AIN2

Analog channel inputs

GND

Power supply return

SCL

Serial Clock

SDA

Serial Data

SMBALERT#

Interrupt output

VDD

Power Supply

1113

CE#

Chip Enable

A2, A1, A0

I2C Address select inputs

AIN0, AIN1, AIN2

Analog channel inputs

GND

Power supply return

REFIN

Reference input

SCL

Serial Clock

SDA

Serial Data

SMBALERT#

Interrupt output

VDD

Power Supply

AIN2

AIN1

AIN0

GND

VDD

CE#

REFIN

SMBALERT#

SCL

SDA

2033 14 PCon

14-Pin SOIC

SMD1113

2033 8 PCon-2

REFIN

AIN1

AIN0

GND

VDD

SMBALERT#

SCL

SDA

8-Pin SOIC

SMD1102

AIN2

AIN1

AIN0

GND

VDD

SMBALERT#

SCL

SDA

8-Pin SOIC

SMD1103

2033 8 PCon-3

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