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Designing RS-485 Circuits - Single Board Computers and Embedded PC for PC/104, EPIC and St
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日期:2024-05-21
24 Issue 107 June 1999 CIRCUIT CELLAR® www.circuitcellar.com high also causes the timer to begin timing out. About 40 µs after the rising edge, the timer’s output goes low, dis-abling the driver. The delay ensures that the driver’s RS-485 output switches ...看更多