TCA9546ADR

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TCA9546ADR概述

具有复位功能的 1.65V 至 5.5V 4 通道 I2C 和 SMBus 开关 16-SOIC -40 to 85

The TCA9546A is a quad bidirectional translating switch controlled via the I2C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register.

An active-low reset RESET input allows the TCA9546A to recover from a situation in which one of the downstream I2C buses is stuck in a low state. Pulling RESET low resets the I2C state machine and causes all the channels to be deselected, as does the internal power-on reset function.

The pass gates of the switches are constructed such that the VCC pin can be used to limit the maximum high voltage, which will be passed by the TCA9546A. This allows the use of different bus voltages on each pair, so that 1.8-V, 2.5-V, or 3.3-V parts can communicate with 5-V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5.5-V tolerant.

TCA9546ADR中文资料参数规格
技术参数

输出接口数 4

通道数 4

传送延迟时间 1.00 ns

耗散功率 0.4 W

输入数 4

工作温度Max 85 ℃

工作温度Min -40 ℃

耗散功率Max 400 mW

电源电压 1.65V ~ 5.5V

封装参数

安装方式 Surface Mount

引脚数 16

封装 SOIC-16

外形尺寸

封装 SOIC-16

物理参数

工作温度 -40℃ ~ 85℃

其他

产品生命周期 Active

包装方式 Tape & Reel TR

符合标准

RoHS标准 RoHS Compliant

含铅标准 Lead Free

海关信息

ECCN代码 EAR99

数据手册

TCA9546ADR引脚图与封装图
TCA9546ADR引脚图
TCA9546ADR封装图
TCA9546ADR封装焊盘图
在线购买TCA9546ADR
型号: TCA9546ADR
制造商: TI 德州仪器
描述:具有复位功能的 1.65V 至 5.5V 4 通道 I2C 和 SMBus 开关 16-SOIC -40 to 85

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