LTC4306

更新时间： 2024-09-25 05:43:59

品牌	Logo	应用领域
凌特 - Linear		复用器
页数	文件大小	规格书
20页	256K
描述
4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering

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LTC4306 数据手册

LTC4306

4-Channel,

2-Wire Bus Multiplexer with

Capacitance Buffering

FEATURES

DESCRIPTIO

The LTC^®4306 is a 4-channel, 2-wire bus multiplexer with

bus buffers to provide capacitive isolation between the

upstream bus and downstream buses. Through software

control,theLTC4306connectstheupstream2-wirebusto

any desired combination of downstream buses. Each

channel can be pulled up to a supply voltage ranging from

2.2V to 5.5V, independent of the LTC4306 supply voltage.

The downstream channels are also provided with

ALERT1-ALERT4 inputs for fault reporting.

■

1:4 2-Wire Multiplexer/Switch

■

Connect SDA and SCL Lines with 2-Wire Bus

Commands

■

Supply Independent Bidirectional Buffer for SDA

and SCL Lines Increases Fan-Out

■

Programmable Disconnect from Stuck Bus

Compatible with I²C and SMBus Standards

■

Rise Time Accelerator Circuitry

■

SMBus Compatible ALERT Response Protocol

■

Two General Purpose Inputs-Outputs

Programmable timeout circuitry disconnects the down-

stream buses if the bus is stuck low. When activated, rise

time accelerators source currents into the 2-wire bus pins

to reduce rise time. Driving the ENABLE pin low restores

all features to their default states. Three address pins

provide 27 distinct addresses.

■

Prevents SDA and SCL Corruption During Live Board

Insertion and Removal from Backplane

■

±10kV Human Body Model ESD Ruggedness

■

24-Lead QFN (4mm × 5mm) and SSOP Packages

APPLICATIO S

The LTC4306 is available in 24-lead QFN (4mm × 5mm)

■

Nested Addressing

and SSOP packages.

■

5V/3.3V Level Translator

, LTC and LT are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners. Patent pending.

■

Capacitance Buffer/Bus Extender

TYPICAL APPLICATIO

A Level Shifting and Nested Addressing Application

3.3V

2.5V

I C Bus Waveforms

0.01µF

= 3.3V

10k

10k 10k 10k

10k 10k

VBACK = 2.5V

SCLIN

2V/DIV

SCLIN

SDAIN

ALERT ALERT1

SCL1

SDA1

MICRO-

CONTROLLER

SFP

MODULE 1

VCARD1 = 3.3V

SCL1

2V/DIV

ADDRESS = 1111 000

•

LTC4306

10k 10k 10k

VCARD4 = 5V

ADR2

ADR1

ADR0 ALERT4

GND

SCL4

SDA4

SCL4

2V/DIV

SFP

MODULE 4

4306 TA01b

ADDRESS = 1111 000

4306 TA01a

500ns/DIV

ADDRESS = 1000 100

4306f

12 3 4 5 6 7...20

中文翻译

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与LTC4306相关器件

型号	品牌	获取价格	描述	数据表
LTC4306CGN	Linear	获取价格	4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering
LTC4306CGN#PBF	Linear	获取价格	LTC4306 - 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering; Package: SSOP; Pin
LTC4306CGN#TR	Linear	获取价格	LTC4306 - 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering; Package: SSOP; Pin
LTC4306CGN#TRPBF	Linear	获取价格	LTC4306 - 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering; Package: SSOP; Pin
LTC4306CUFD	Linear	获取价格	4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering
LTC4306CUFD#PBF	Linear	获取价格	LTC4306 - 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering; Package: QFN; Pins
LTC4306CUFD#TR	Linear	获取价格	LTC4306 - 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering; Package: QFN; Pins
LTC4306IGN	Linear	获取价格	4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering
LTC4306IGN#TR	Linear	获取价格	暂无描述
LTC4306IGN#TRPBF	Linear	获取价格	LTC4306 - 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering; Package: SSOP; Pin

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