新到新貨
MAX485ESA MAX 1901+ 20000個(gè)
MAX232ESE MAX 1901+2 20000個(gè)
SN74LS245DBR TI 1906+ 10000個(gè)
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.
The SNx4LS245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the device so that the buses are effectively isolated.
特性 3-State Outputs Drive Bus Lines Directly PNP Inputs Reduce DC Loading on Bus Lines Hysteresis at Bus Inputs Improves Noise Margins Typical Propagation Delay Times Port to Port, 8 ns方框圖
SN74LS245 - 功能方框圖
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