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74LVXC3245 是一款 24 引脚双电源、八路可配置电压接口收发器,适用于 PCMCIA 和其他实时可配置 I/O 应用。VCCA 引脚接受 3V 供应电平;A 端口为专用 3V 端口。VCCB 引脚接受 3V-5V 供应电平。B 端口配置为跟踪 VCCB 供应电平。VCCB 引脚上的 5V 电平会在 5V 电平下配置 I/O 引脚,3V VCCB 会在 3V 电平下配置 I/O 引脚。A 端口应接口 3V 主系统,B 端口接口卡槽。此器件将在 OE 为高电平时允许 B 端口上的 VCCB 电源源引脚和 I/O 引脚浮动。要与 PCMCIA 插槽进行双向数据缓冲,以允许在正常运行期间插拔 PCMCIA 卡,必需此功能。发射/接收 (T/R) 输入决定了数据流向。传输(有效高电平)让数据能够从 A 端口传输到 B 端口。接收(有效低电平)让数据能够从 B 端口传输到 A 端口。
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MC74LVXC3245DTG
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MC74LVXC3245DTRG
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MC74LVXC3245DWRG
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