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MCP2021 Datasheet(PDF) 8 Page - Microchip Technology

No. de pieza MCP2021
Descripción Electrónicos  LIN Transceiver with Voltage Regulator
PDF  52 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP2021 Datasheet(HTML) 8 Page - Microchip Technology

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MCP2021/2/1P/2P
DS22018F-page 8
© 2005-2012 Microchip Technology Inc.
FIGURE 1-2:
MCP2021/2 Operational Modes State Diagrams.
FIGURE 1-3:
MCP2021P/2P Operational Modes State Diagrams.
Power-Down
TX: OFF
RX: OFF
VREG: OFF
CS/LWAKE=0
Transmitter Off
TX: OFF
RX: ON
VREG: ON
POR
TX: OFF
RX: OFF
VREG: OFF
Operation
TX: ON
RX: ON
VREG: ON
Ready
TX: OFF
RX: ON
VREG: ON
VBAT>5.75V
CS/LWAKE=1&
VREG_OK=1
CS/LWAKE=0
FAULT/TXE=0
Or Faults*
FAULT/TXE=1
&No Faults*
CS/LWAKE=1
or dominant level on LBUS
Start
*Fault: thermal shutdown and TXD/LBUS permanent dominant
Note:
While the device is in shutdown, TXD should not be actively driven high or it may power internal logic
through the ESD diodes and may damage the device.
Power-Down
TX: OFF
RX: OFF
VREG: OFF
CS/LWAKE=0
Transmitter Off
TX: OFF
RX: ON
VREG: ON
POR
TX: OFF
RX: OFF
VREG: OFF
Operation
TX: ON
RX: ON
VREG: ON
Ready
TX: OFF
RX: ON
VREG: ON
VBAT>5.75V
CS/LWAKE=1&
VREG_OK=1&
FAULT/TXE=1
CS/LWAKE=0
FAULT/TXE=0
Or Faults*
FAULT/TXE=1
&No Faults*
CS/LWAKE=1
or Falling edge on LBUS
Start
*Fault: thermal shutdown and TXD/LBUS permanent dominant
CS=1&VREG_OK=1
&FAULT/TXE=0



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