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MAX7302ATE

更新时间： 2024-11-27 03:15:07

品牌	Logo	应用领域
美信 - MAXIM		驱动器
页数	文件大小	规格书
29页	374K
描述
SMBus/I2C Interfaced 9-Port, Level-Translating GPIO and LED Driver with CLA

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MAX7302ATE 数据手册

19-0749; Rev 0; 7/07

SMBus/I C Interfaced 9-Port,

Level-Translating GPIO and LED Driver with CLA

General Description

Features

The MAX7302 I²C-/SMBus™-compatible, serial-interfaced

peripheral features 9 level-translating I/Os, and operates

from a 1.62V to 3.6V power supply. The MAX7302 fea-

♦ 1.62V to 5.5V I/O Level-Translation Port Supply (V

♦ 1.62V to 3.6V Power Supply

)

♦ 9 Individually Configurable GPIO Ports

P1 Open-Drain I/O

tures a port supply V that allows level-translation on I/O

ports to operate from a separate power supply from 1.62V

to 5.5V. An address select input, AD0, allows up to four

unique slave addresses for the device.

P2–P9 Push-Pull or Open-Drain I/Os

♦ Individual 33-Step PWM Intensity Control

♦ Blink Controls with 15 Steps on Outputs

The MAX7302 ports P2–P9 can be configured as inputs,

push-pull outputs, and open-drain outputs. Port P1 can

be configured as a general-purpose input, open-drain

output, or an open-drain INT output. Ports P2–P9 can be

configured as OSCIN and OSCOUT, respectively. Ports

P2–P9 can also be used as configurable logic arrays

(CLAs) to form user-defined logic gates, replacing exter-

nal discrete gates. Outputs are capable of sinking up to

25mA, and sourcing up to 10mA when configured as

push-pull outputs.

♦ 1kHz PWM Period Provides Flicker-Free LED

Intensity Control

♦ 25mA (max) Port Output Sink Current (100mA

max Ground Current)

♦ Inputs Overvoltage Protected Up to 5.5V (V

)

♦ Transition Detection with Optional Interrupt Output

♦ Optional Input Debouncing

♦ I/O Ports Configurable as Logic Gates (CLA)

♦ External RST Input

The MAX7302 includes an internal oscillator for PWM,

blink, and key debounce, or to cascade multiple

MAX7302s. The external clock can be used to set a spe-

cific PWM and blink timing. The RST input asynchronous-

ly clears the 2-wire interface and terminates a bus lockup

involving the MAX7302.

♦ Oscillator Input and Output Enable Cascading

Multiple Devices

♦ Low 0.75µA (typ) Standby Current

Ordering Information

PIN-

PACKAGE

PKG

CODE

All ports configured as an output feature a 33-step PWM,

allowing any output to be set from fully off, 1/32 to 31/32

duty cycle, to fully on. All output ports also feature LED

blink control, allowing blink periods of 1/8s, 1/4s, 1/2s, 1s,

2s, 4s, or 8s. Any port can blink during this period with a

1/16 to 15/16 duty cycle.

PART

TEMP RANGE

MAX7302AEE+ -40°C to +125°C 16 QSOP

E16-4

16 TQFN-EP*

(3mm x 3mm)

MAX7302ATE+ -40°C to +125°C

T1633-4

+Denotes lead-free package.

*EP = Exposed paddle.

The MAX7302 is specified over the -40°C to +125°C

temperature range and is available in 16-pin QSOP and

16-pin TQFN (3mm x 3mm) packages.

Typical Operating Circuit

Applications

+1.8V

+4.5V

Cell Phones

Servers

System I/O Ports

LCD/Keypad Backlights

LED Status Indicators

µC

SDA

SCL

RST

INT

SDA

MAX7302

SCL

RST

P1/INT

1.8V OPEN-DRAIN OUTPUT

4.5V PUSH-PULL OUTPUT

4.5V LOGIC INPUT

3.3V LOGIC INPUT

2.5V LOGIC INPUT

ADO

GND

Pin Configurations appear at end of data sheet.

SMBus is a trademark of Intel Corp.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim's website at www.maxim-ic.com.

12 3 4 5 6 7...29

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与MAX7302ATE相关器件

型号	品牌	获取价格	描述	数据表
MAX7302ATE+	MAXIM	获取价格	SMBus/I2C Interfaced 9-Port, Level-Translating GPIO and LED Driver with CLA
MAX7302ATE+T	MAXIM	获取价格	Interface Circuit, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220, TQFN-16
MAX7304	MAXIM	获取价格	I2C-Interfaced 16-Port, Level-Translating GPIO and LED Driver with High Level of Integrate
MAX7304	ADI	获取价格	I2C接口、16端口、电平转换GPIO和LED驱动器，内置ESD保护
MAX7304_12	MAXIM	获取价格	I2C-Interfaced 16-Port,Level-Translating GPIO and LED Driver
MAX7304ETG+	MAXIM	获取价格	I2C-Interfaced 16-Port,Level-Translating GPIO and LED Driver
MAX7304ETG+T	MAXIM	获取价格	Interface Circuit, BICMOS, PDSO24, 3.50 X 3.50 MM, ROHS COMPLIANT, TQFN-24
MAX7304EWA+	MAXIM	获取价格	I2C-Interfaced 16-Port,Level-Translating GPIO and LED Driver
MAX7304PMB1	MAXIM	获取价格	MAX7304PMB1 Peripheral Module
MAX7306	MAXIM	获取价格	SMBus/I2C Interfaced 4-Port, Level-Translating GPIOs and LED Drivers

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