* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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有些总线开关具有容限功能,有的则没有。表1列出了每个系列的总线开关是否具有容限功能,请参考表中内容。但是,具体细节请查阅您所使用器件的数据表。如果电源关闭时总线开关的I/O端子有可能输入信号,请选择具有容限功能的产品。
总线开关的输入/输出端子(I/O端子)的容限功能
关于如何检查总线开关的容限功能,请查看数据表的操作范围中的“开关输入/输出电压”项目的额定值。表2以TC7MBL3257CFT为例,列出了具有容限功能的器件的操作范围。当VCC=0 V或开关关断时,开关输入/输出电压(VS)不依赖于电源电压,并且可以在电源电压范围内输入信号。因此,即使在断电时输入信号,器件也不会受到损坏。
表2:TC7MBL3257CFT的工作范围
表3以TC7WB66CFK为例,列出了不具有容错功能的器件的操作范围。当VCC=0 V或开关关断时,开关输入/输出电压(VS)为0至VCC,因此输入信号取决于输入电压。换句话说,断电时无法输入信号。
表3:TC7WB66CFK的工作范围
以下文档也包含相关信息。