器件名称详细搜索
产品SN74HCT257TI
描述

The 'HCT257 devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at the high logic level. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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目录

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制造商型号分类描述下载
TE Connectivity

TE Connectivity

032-0025-0001连接器射频互连RF connectors / coaxial connectors 032-0025-0001= plug straights-
TE Connectivity

TE Connectivity

032-0023-0001连接器射频互连RF connectors / coaxial connectors plug str s-50ohms
TE Connectivity

TE Connectivity

032-0017-0001连接器射频互连RF connectors / coaxial connectors 3200170001
TE Connectivity

TE Connectivity

032-0033-0001连接器射频互连RF connectors / coaxial connectors 032-0033-0001= plug straights-
TE Connectivity

TE Connectivity

032-0098-0001连接器射频互连RF connectors / coaxial connectors 032-0098-0001 plug,straights-
TE Connectivity

TE Connectivity

032-0021-0001连接器射频互连RF connectors / coaxial connectors plug str s-50ohms