LTC4306是采用电容缓冲的 4 通道、二线式总线多路复用器

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LTC4306 - LTC4306是采用电容缓冲的 4 通道、二线式总线多路复用器

LTC4306是Linear公司的一款I2C 和 SMBus 总线缓冲器和加速器产品，LTC4306是采用电容缓冲的 4 通道、二线式总线多路复用器，本站介绍了LTC4306的封装应用图解、特点和优点、功能等，并给出了与LTC4306相关的凌力尔特元器件型号供参考。

LTC4306 - 采用电容缓冲的 4 通道、二线式总线多路复用器

LTC4306 - 采用电容缓冲的 4 通道、二线式总线多路复用器 - Linear Technology（凌力尔特）

功能描述

The LTC4306 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, the LTC4306 connects the upstream 2-wire bus to 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. Programmable timeout circuitry disconnects the downstream 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.

The LTC4306 is available in 24-lead QFN (4mm × 5mm) and SSOP packages.

特点

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

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

应用

Nested Addressing

5V/3.3V Level Translator

Capacitance Buffer/Bus Extender

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC4306CGN	SSOP-24	C	$5.00	$3.50
LTC4306CGN#PBF	SSOP-24	C	$5.00	$3.50
LTC4306CGN#TR	SSOP-24	C		$3.56
LTC4306CGN#TRPBF	SSOP-24	C		$3.56
LTC4306CUFD	4x5 QFN-24	C	$5.07	$3.55
LTC4306CUFD#PBF	4x5 QFN-24	C	$5.07	$3.55
LTC4306CUFD#TR	4x5 QFN-24	C		$3.61
LTC4306CUFD#TRPBF	4x5 QFN-24	C		$3.61
LTC4306IGN	SSOP-24	I	$6.00	$4.20
LTC4306IGN#PBF	SSOP-24	I	$6.00	$4.20
LTC4306IGN#TR	SSOP-24	I		$4.26
LTC4306IGN#TRPBF	SSOP-24	I		$4.26
LTC4306IUFD	4x5 QFN-24	I	$6.07	$4.25
LTC4306IUFD#PBF	4x5 QFN-24	I	$6.07	$4.25
LTC4306IUFD#TR	4x5 QFN-24	I		$4.31
LTC4306IUFD#TRPBF	4x5 QFN-24	I		$4.31