MAX7327AATG+ Maxim Integrated Products, MAX7327AATG+ Datasheet

MAX7327AATG+

Manufacturer Part Number

MAX7327AATG+

Description

Manufacturer

Maxim Integrated Products

Datasheets

1.MAX7327AATG.pdf (21 pages)

2.MAX7327AATG.pdf (21 pages)

Specifications of MAX7327AATG+

Pack_quantity

Comm_code

85423990

Lead_time

Current page: 1 of 21
Download datasheet (2Mb)

The MAX7327, a 2-wire serial-interfaced peripheral,

features 12 push-pull outputs and four configurable

open-drain I/O ports with selectable internal pullups

and transition detection. Ports are overvoltage protect-

ed to +6V, independent of supply voltage.

The four I/O ports configured as inputs are continuously

monitored for state changes (transition detection). State

changes are indicated by the open-drain, +6V-tolerant

INT output. The interrupt is latched, detecting transient

changes. When the MAX7327 is subsequently accessed

through the serial interface, any pending interrupt is

cleared. The 12 push-pull and the four open-drain out-

puts are rated to sink 20mA, and are capable of driving

LEDs. The RST input clears the serial interface, terminat-

ing any I

The MAX7327 uses two address inputs with four-level

logic to allow 16 I

address also determines the power-up logic state for

the I/O ports, and enables or disables internal 40kΩ

pullups in groups of two ports.

The MAX7327 is one device in a family of pin-compatible

port expanders with a choice of input ports, open-drain

I/O ports, and push-pull output ports (see Table 1).

The MAX7327 is available in the 24-pin QSOP and

TQFN packages, and is specified over the -40°C to

+125°C automotive temperature range.

19-3805; Rev 0; 8/06

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Pin Configurations continued at end of data sheet.

Cell Phones

SAN/NAS

Servers

TOP VIEW

C* communication to or from the MAX7327.

SCL

SDA

AD2

RST

INT

C Port Expander with 12 Push-Pull Outputs

V+

________________________________________________________________ Maxim Integrated Products

TQFN (4mm x 4mm)

C slave addresses. The slave

EXPOSED PADDLE

General Description

MAX7327

Pin Configurations

Notebooks

Satellite Radio

Automotive

Applications

O10

GND

♦ 400kHz I

♦ +1.71V to +5.5V Operating Voltage

♦ 12 Push-Pull Output Ports, Rated at 20mA Sink

♦ 4 Open-Drain I/O Ports, Rated at 20mA Sink Current

♦ I/O Ports are Overvoltage Protected to +6V

♦ Selectable I/O Port Power-Up Default Logic States

♦ Transient Changes are Latched, Allowing Detection

♦ INT Output Alerts Changes on Inputs

♦ AD0 and AD2 Inputs Select from 16 Slave

♦ Low 0.6µA (typ) Standby Current

♦ -40°C to +125°C Temperature Range

+Denotes lead-free package.

**EP = Exposed pad.

Typical Application Circuit and Functional Diagram appear

at end of data sheet.

*Purchase of I

Inc., or one of its sublicensed Associated Companies, conveys

a license under the Philips I

ponents in an I

to the I

MAX7327AEG+ -40°C to +125°C 24 QSOP

MAX7327ATG+

MAX7327AATG+ -40°C to +125°C

MAX7324

MAX7325

MAX7326

MAX7327

PART

Current

Between Read Operations

Addresses

and 4 Open-Drain I/Os

PART

C Standard Specification as defined by Philips.

INPUTS

Up to 8

Up to 4

C Serial Interface

C components from Maxim Integrated Products,

C system, provided that the system conforms

-40°C to +125°C

TEMP RANGE PIN-PACKAGE

INTERRUPT

Ordering Information

MASK

Yes

—

C Patent Rights to use these com-

Selector Guide

24 TQFN - E P **

( 4m m x 4m m )

24 TQFN - E P **

( 3.5m m x 3.5m m )

OUTPUTS

Up to 8

Up to 4

OPEN-

DRAIN

—

Features

PUSH-PULL

OUTPUTS

T243A3-1

T2444-3

CODE

E24-1

PKG

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