UJA1023T/2R04,512 NXP Semiconductors, UJA1023T/2R04,512 Datasheet - Page 35

• Manufacturer Part Number: UJA1023T/2R04,512
• Description: IC CAN/LIN I/O SLAVE 32HTSSOP
• Manufacturer: NXP Semiconductors

Specifications of UJA1023T/2R04,512

• Applications: LIN Controller
• Interface: LIN (Local Interconnect Network)
• Voltage - Supply: 6.5 V ~ 27 V
• Package / Case: 16-SOIC (3.9mm Width)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935281302512; UJA1023T/2R04; UJA1023T/2R04

NXP Semiconductors
UJA1023
Product data sheet
Figure 13
termination.
The first mode after power-on is the Off-line mode. The transmitter and receiver are both
switched off, but wake-up events will be recognized. Any LIN wake-up event will wake-up
the UJA1023.
Within Sleep mode any wake-up event is automatically forwarded to the LIN (protocol)
controller, the Normal mode will be entered and the LIN-transceiver automatically enters
the Active mode. It should be noted that the first message (wake-up message) will be lost
when no wake-up signal has been received before.
The differences between Active, Off-line and Fail silent mode are:
Fig 13. LIN transceiver states
•
•
•
In Off-line and Fail silent mode the transmitter is off, whereas in Active mode the
transmitter is enabled
During active state with no short-circuit between LIN and GND the internal termination
switch RTLIN provides an internal 30 kΩ pull-up resistor to V
is shorted to GND for longer than t
make sure that no current is discharging the battery unintentionally and Fail silent
mode will be entered
After failure recovery (in fail silent) when the LIN bus is recessive again the Off-line
mode is entered and activates a weak termination of 75 μA
TX = Transmitter.
RX = Receiver.
LPRX = Low-power receiver.
RTLIN = LIN termination.
shows the states of the complete LIN transceiver including RTLIN for LIN
RTLIN: 30 kΩ
LPRX: on
sleep or LH sleep
Active
RX: on
TX: on
All information provided in this document is subject to legal disclaimers.
t
to(idle)
or
Rev. 5 — 17 August 2010
remote wake-up
local wake-up
or
to(dom)
RTLIN: 75 μA
local wake-up
LPRX: on
Off-line
TX: off
RX: off
t
to(dom)
, the RTLIN switch switches off in order to
or undervoltage
t
to(rec)
power-on
BAT
t
to(dom)
Fail silent
. In case the LIN wire
RTLIN: off
LPRX: on
RX: off
TX: off
UJA1023
© NXP B.V. 2010. All rights reserved.
mce652
LIN-I/O slave
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