MC33663AJEF Freescale Semiconductor, MC33663AJEF Datasheet - Page 29

• Manufacturer Part Number: MC33663AJEF
• Description: LIN Transceivers dual LINcell
• Manufacturer: Freescale Semiconductor

Specifications of MC33663AJEF

• Rohs: yes
• Operating Supply Voltage: 7 V to 18 V
• Supply Current: 22 uA
• Maximum Operating Temperature: + 125 C
• Package / Case: SOIC-14
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT

very low. Wake-up can occur from LIN1 bus activity, from the EN1 pin and from the WAKE1 input pin. If during the preparation
to Sleep mode delay (t
The LIN Module 1 can be awakened by a recessive to dominant start, followed by a dominant to recessive state after t > t
up resistor is connected and the 30 kOhm is disconnected.
DEVICE POWER-UP (Awake Transitional Mode)
after a 160 µs delay time to the Awake transitional mode. Both INH pins (INH1 and INH2) go to a HIGH state and RXD1and RXD2
to a LOW state. See
DEVICE WAKE-UP EVENTS
Remote Wake from LIN1, LIN2 Bus (Awake Transitional Mode)
dominant transition, wait for t > t
is detected (during the dominant to recessive transition), the LIN Module waken up by its LIN enters into Awake mode, with its
INH HIGH and RXD pulled LOW.
Once in Normal mode, the LIN Module has to wait t
Wake-up from EN1, EN2 pins
stays HIGH for a delay higher than t
Normal mode, the LIN Module has to wait t
Wake-up from WAKE1, WAKE2 Pins (Awake Transitional Mode)
than the deglitcher time (70 µs maximum) will generate a wake-up, and the LIN Module enters into the Awake Transitional mode,
with its INH HIGH and RXD pulled LOW. See
LOW to HIGH and stays HIGH for a delay higher than t
before transmitting the first dominant bit.
Analog Integrated Circuit Device Data
Freescale Semiconductor
In Sleep mode, the transmission path is disabled and the LIN Module 1 is in Low Power mode. Supply current from V
After a wake-up event, the LIN Module 1 enters into Awake mode. In Sleep mode, the LIN Module 1 internal 725 kOhm pull-
At power-up (V
The 33663L, 33663J and 33663S can be awakened from Sleep mode by three wake-up events:
• Remote wake-up via LIN1 and/or LIN2 bus activity
• Via the EN1 and/or EN2 pin
• Toggling the WAKE1 and/or WAKE2 pin
Each LIN Transceiver is awakened by its LIN dominant pulse longer than t
Once in the Awake mode, its EN pin has to be set to 3.3 V or 5.0 V (depending on the system) to enter into Normal mode.
Each LIN Module can be awakened by a LOW to HIGH transition of its EN pin. When EN is switched from LOW to HIGH and
Just before entering the Sleep mode, the WAKE pin state of the concerned LIN Module is stored. A change in the level longer
SUP
Figure
rises from zero), when V
SD
), the LIN1 bus goes low due to LIN1 network communication, the LIN Module 1 still enters Sleep mode.
21.
WUF
LWUE
, then a dominant to recessive transition. This is illustrated in
, the LIN Module is awakened and enters into Normal mode. See
FIRST_DOM
Figure
SUP
is above the Power-On Reset voltage, both LIN Modules automatically switch
FIRST_DOM
16. The LIN Module goes into Normal mode when its EN is switched from
LWUE
delay before transmitting the first dominant bit.
. Once in Normal mode, the LIN Module has to wait t
delay before transmitting the first dominant bit.
WUF
. Dominant pulse means: a recessive to
FUNCTIONAL DEVICE OPERATION
Figure
OPERATIONAL MODES
15. Once the wake-up
Figure
FIRST_DOM
14. Once in
SUP
delay
WUF
33663
is
29
.