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MAX7313

更新时间： 2024-11-30 21:53:47

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
27页	415K
描述
16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection

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MAX7313 数据手册

19-3059; Rev 4; 4/05

16-Port I/O Expander with LED Intensity

Control, Interrupt, and Hot-Insertion Protection

General Description

Features

The MAX7313 I²C™-compatible serial interfaced

peripheral provides microprocessors with 16 I/O ports.

Each I/O port can be individually configured as either

an open-drain current-sinking output rated at 50mA and

5.5V, or a logic input with transition detection. A 17th

port can be used for transition detection interrupt, or as

a general-purpose output. The outputs are capable of

driving LEDs, or providing logic outputs with external

resistive pullup up to 5.5V.

♦ 400kbs, 2-Wire Serial Interface, 5.5V Tolerant

♦ 2V to 3.6V Operation

♦ Overall 8-Bit PWM LED Intensity Control

Global 16-Step Intensity Control

Individual 16-Step Intensity Controls

♦ Two-Phase LED Blinking

♦ High Output Current (50mA max Per Port)

♦ Outputs are 5.5V-Rated Open Drain

♦ Supports Hot Insertion

PWM current drive is integrated with 8 bits of control.

Four bits are global control and apply to all LED outputs

to provide coarse adjustment of current from fully off to

fully on with 14 intensity steps. Each output then has

individual 4-bit control, which further divides the global-

ly set current into 16 more steps. Alternatively, the cur-

rent control can be configured as a single 8-bit control

that sets all outputs at once.

♦ Inputs are Overvoltage Protected to 5.5V

♦ Transition Detection with Interrupt Output

♦ 1.2µA (typ), 3.6µA (max) Standby Current

♦ Small 4mm x 4mm Thin QFN Package

♦ -40°C to +125°C Temperature Range

♦ All Ports Can Be Configured as Inputs or Outputs

The MAX7313 is pin and software compatible with the

MAX7311, PCA9535, and PCA9555.

Each output has independent blink timing with two blink

phases. All LEDs can be individually set to be on or off

during either blink phase, or to ignore the blink control.

The blink period is controlled by a register.

Ordering Information

PIN-

PKG

PART

TEMP RANGE

PACKAGE

CODE

24 Thin QFN

4mm x 4mm

x 0.8mm

The MAX7313 supports hot insertion. All port pins, the

INT output, SDA, SCL, and the slave-address inputs

ADO-2 remain high impedance in power-down (V+ =0V)

with up to 6V asserted upon them.

MAX7313ATG -40°C to +125°C

T2444-4

—

MAX7313AEG -40°C to +125°C 24 QSOP

The MAX7313 is controlled through the 2-wire

I²C/SMBus serial interface, and can be configured to

any one of 64 I²C addresses.

Pin Configurations

TOP VIEW

Applications

LCD Backlights

18 17 16 15 14 13

LED Status Indication

Portable Equipment

Keypad Backlights

RGB LED Drivers

SCL

P10

SDA 20

11 P9

V+

MAX7313ATG

INT/O16

GND

Notebook Computers

AD1

AD2

Typical Application Circuit appears at end of data sheet.

Purchase of I C components of Maxim Integrated Products, Inc.,

or one of its sublicensed Associated Companies, conveys a

THIN QFN

Pin Configurations continued at end of data sheet.

license under the Philips I C Patent Rights to use these compo-

nents in an I C system, provided that the system conforms to the

I C Standard Specification as defined by Philips.

________________________________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7...27

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与MAX7313相关器件

型号	品牌	获取价格	描述	数据表
MAX7313_11	MAXIM	获取价格	16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
MAX7313AEG	MAXIM	获取价格	16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
MAX7313AEG+	MAXIM	获取价格	Parallel I/O Port, 1-Bit, 16 I/O, BICMOS, PDSO24, 0.150 INCH, 0.025 INCH PITCH, MO-137AE,
MAX7313AEG+T	MAXIM	获取价格	Parallel I/O Port, 1-Bit, 16 I/O, BICMOS, PDSO24, 0.150 INCH, 0.025 INCH PITCH, MO-137AE,
MAX7313AEG-T	MAXIM	获取价格	Parallel I/O Port, 1-Bit, 16 I/O, BICMOS, PDSO24, 0.150 INCH, 0.025 INCH PITCH, MO-137AE,
MAX7313ATG	MAXIM	获取价格	16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
MAX7313ATG+	MAXIM	获取价格	Parallel I/O Port, 1-Bit, 16 I/O, BICMOS, 4 X 4 MM, 0.80 MM PITCH, MO-220WGGD-2, TQFN-24
MAX7313ATG+T	MAXIM	获取价格	Parallel I/O Port, 1-Bit, 16 I/O, BICMOS, 4 X 4 MM, 0.80 MM PITCH, MO-220WGGD-2, TQFN-24
MAX7313DAEG+	MAXIM	获取价格	Parallel I/O Port, CMOS,
MAX7313DAEG+T	MAXIM	获取价格	Parallel I/O Port, CMOS,

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