Datasheet > MAX7317

MAX7317

更新时间： 2023-12-20 18:45:22

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描述
10端口、SPI接口输入/输出扩展器，带有过压和热插入保护

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MAX7317 数据手册

MAX7317

10-Port SPI-Interfaced I/O Expander with

Overvoltage and Hot-Insertion Protection

General Description

Beneﬁts and Features

● Industry-Standard 4-Wire Interface Simplifies I/O

Ports Expansion Independent of Microprocessor

Architecture

The MAX7317 serial-interfaced peripheral provides

microprocessors with 10 I/O ports rated to 7V. Each port

can be individually configured as either an open-drain

output, or an overvoltage-protected Schmitt input.

• High-Speed, 26MHz, SPI-/QSPI™-/MICROWIRE -

Compatible Serial Interface

• 2.25V to 3.6V Operation

The MAX7317 supports hot insertion. All port pins remain

high impedance in power-down (V+ = 0V) with up to 8V

asserted on them.

● Protection Circuitry Ensures Robust Operation

• I/O Port Inputs Are Overvoltage Protected to 7V

• I/O Port Outputs Are 7V-Rated Open Drain

• I/O Ports Support Hot Insertion

The MAX7317 is available in 16-pin TQFN and QSOP

packages and operates in the -40°C to +125°C range.

For a similar part with constant-current outputs and

8-bit PWM controls, refer to the MAX6966/MAX6967 data

sheet.

● Low Power Consumption and Small Package Reduce

Board Size and Power-Supply Requirements

• 0.7μA (typ), 1.9μA (max) Standby Current

• 3mm x 3mm, 0.8mm High TQFN Package

Applications

● Portable Equipment

● Cellular Phones

● White Goods

● Industrial Controllers

● System Monitoring

Ordering Information

PIN-

PACKAGE

TOP

MARK

PART

TEMP RANGE

16 TQFN-EP*

MAX7317ATE+ -40°C to +125°C 3mm x 3mm x

ACH

—

0.8mm

QSPI is a trademark of Motorola, Inc.

MICROWIRE is a registered trademark of National

Semiconductor Corp.

MAX7317AEE+ -40°C to +125°C 16 QSOP

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

Typical Application Circuit

+3.3V

Pin Conﬁgurations

µC

MAX7317

TOP VIEW

SCLK

DIN

SCLK

MOSI

12 11 10

DOUT

MISO

DIN 13

V+

SCLK

MAX7317ATE

GND

I/O PORTS

GND

TQFN

Pin Configurations continued at end of data sheet.

19-3380; Rev 4; 4/15

12 3 4 5 6 7...11

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与MAX7317相关器件

型号	品牌	描述	获取价格	数据表
MAX7317AEE	MAXIM	10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection	获取价格
MAX7317AEE+	MAXIM	Parallel I/O Port, 1-Bit, 10 I/O, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, ROHS COMPL	获取价格
MAX7317AEE+T	MAXIM	Parallel I/O Port, 1-Bit, 10 I/O, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, ROHS COMPL	获取价格
MAX7317AEE-T	MAXIM	暂无描述	获取价格
MAX7317ATE	MAXIM	10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection	获取价格
MAX7317ATE+	MAXIM	Parallel I/O Port, 1-Bit, 10 I/O, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220	获取价格