MCP2003T-E/P MICROCHIP [Microchip Technology], MCP2003T-E/P Datasheet - Page 5

• Manufacturer Part Number: MCP2003T-E/P
• Description: LIN J2602 Transceiver
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 1-3:
TABLE 1-1:
 2010 Microchip Technology Inc.
POR
Ready
Operation
Power Down
Transmitter Off
Note:
VREN OFF
State
RX OFF
TX OFF
POR
While the MCP2003/4 is in thermal shutdown, T
internal logic through the ESD diodes and may damage the device.
OVERVIEW OF OPERATIONAL MODES
Transmitter Receiver
OPERATIONAL MODES STATE DIAGRAM – MCP2004
OFF
OFF
OFF
OFF
ON
VBB > 5.5V
Falling edge on LIN
Activity
Detect
CS = 1
OFF
ON
ON
ON
or
Vren
OFF
OFF
ON
ON
ON
CS = 1 and (TXE = 0 or TXD = 0)
Read CS, if low, then Ready;
if high, Operational mode
If CS high level, then Operation mode
If CS low level, then Power Down;
If FAULT/TXE low level, then Transmitter Off
mode
On LIN bus falling, go to Ready mode. On CS
high level, go to Operation mode
If CS low level, then Power Down;
If FAULT/TXE and TXD high, then Operation
mode
Sleep Mode
VREN OFF
VREN ON
RX OFF
TX OFF
Ready
TX OFF
Mode
RX ON
CS = 0
VREN ON
TX OFF
TOFF
Mode
RX ON
XD
should not be actively driven high or it may power
Operation
CS = 1and TXE = 1
(Thermal or Timer)
and TXD = 1
and No Fault
TXD = 1 and
or TXE=0
CS = 1 and
TXE = 1
Fault
CS = 0
MCP2003/4
Bus Off state
Normal Operation
mode
Low Power mode
FAULT/TXE only
available on
MCP2004
DS22230A-page 5
Operation
VREN ON
Comments
Mode
RX ON
TX ON