COM20020D Ver la hoja de datos (PDF) - SMSC -> Microchip

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COM20020D

COM20020 3.3V ULANC Universal Local Area Network Controller with 2K x 8 On-Board RAM

SMSC -> Microchip 

RT

75176B or

Equiv.

COM20020

+VCC

RBIAS

+VCC

RBIAS

RT

+VCC

RBIAS

COM20020

COM20020

FIGURE 5 - COM20020 NETWORK USING RS-485 DIFFERENTIAL TRANSCEIVERS

1

1

0

20MHZ

CLOCK

(FOR REF.

ONLY)

100ns

nPULSE1

100ns

nPULSE2

200ns

DIPULSE

RXIN

400ns

FIGURE 6 - DIPULSE WAVEFORM FOR DATA OF 1-1-0

19

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