tja1041 NXP Semiconductors, tja1041 Datasheet - Page 6

• Manufacturer Part Number: tja1041
• Description: High Speed Can Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TJA1041_6
Product data sheet
7.1.1 Normal mode
7.1.2 Pwon/listen-only mode
Normal mode is the mode for normal bidirectional CAN communication. The receiver will
convert the differential analog bus signal on pins CANH and CANL into digital data,
available for output to pin RXD. The transmitter will convert digital data on pin TXD into a
differential analog signal, available for output to the bus pins. The bus pins are biased at
0.5V
Figure
In pwon/listen-only mode the transmitter of the transceiver is disabled, effectively
providing a transceiver listen-only behavior. The receiver will still convert the analog bus
signal on pins CANH and CANL into digital data, available for output to pin RXD. As in
normal mode the bus pins are biased at 0.5V
Fig 3. Mode transitions when V
LEGEND:
= H, = L
flag set
flags cleared
STB = H and EN = L
CC
UV
4) will be active too.
(via R
NOM
STB = H
and
EN = L
and
cleared
(EN = L or flag set)
i(cm)
PWON/LISTEN-
logical state of pin
setting pwon and/or wake-up flag
pwon and wake-up flag both cleared
ONLY MODE
STANDBY
STB = L
). Pin INH is active, so voltage regulators controlled by pin INH (see
MODE
and
Rev. 06 — 5 December 2007
STB = L
flag set
STB = H
and
EN = L
and
CC
, V
STB = L
EN = L
and
I/O
STB = L and EN = H
(EN = L or flag set)
and V
flags cleared
STB = H
STB = H
STB = L
SLEEP
MODE
EN = H
EN = L
and
and
and
and
CC
BAT
, and pin INH remains active.
STB = H
EN = H
are present
and
STB = L and EN = H
flags cleared
flags cleared
and
t > t
High speed CAN transceiver
and
h(min)
GO-TO-SLEEP
COMMAND
NORMAL
STB = H
EN = H
MODE
MODE
and
mgu983
© NXP B.V. 2007. All rights reserved.
TJA1041
STB = H and EN = H
UV
STB = L
EN = H
NOM
and
and
cleared
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