MC33389CDW Freescale, MC33389CDW Datasheet - Page 23

• Manufacturer Part Number: MC33389CDW
• Manufacturer: Freescale

Specifications of MC33389CDW

• Number Of Transceivers: 1
• Power Down Mode: Sleep/Standby
• Operating Supply Voltage (max): 27V
• Operating Supply Voltage (typ): 9/12/15/18/24V
• Operating Supply Voltage (min): 5.5V
• Package Type: SOIC W
• Supply Current: 7mA
• Operating Temperature (max): 125C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / RoHS Status: Not Compliant

Table 9. Normal Request: V1 Active and V2/V3 Passive
SBC Normal Mode
or passive via the SPI. Therefore, the whole ECU can be
operated. Normal mode is entered by a SWCR configuration
in the Normal Request mode.
Table 10. SBC Normal Mode: V1/V2 Active
SBC Stand-by Mode
either permanently active or permanently passive. This is a
low power mode with V1 active in order to have a fast
reaction time in case of any wake-up.
software. It means the microcontroller runs, is monitored, and
must serve as a watchdog trigger.
Table 11. Stand-by: V1 Active, V2 Passive, V3 Active
Analog Integrated Circuit Device Data
Freescale Semiconductor
Entering Normal Request
In this mode V1 is active and V2 is passive. V3 can be
For Stand-by mode, the S Bus Circuit (SBC) monitors the
In this mode, V1 and V2 are active, V3 can be set active
SBC Reset Just Released
Entering Normal Mode
Normal Request mode
After SWCR register
Entering Stand-by
By SPI Command
By SPI command
configuration in
While V3 is Active or Passive
or Passive, Watchdog is Active
—
—
—
Leaving Normal Request
By SPI Command Going to any
going to Normal Request mode
By SPI command, going to any
If SW Timeout Going to Normal
When First Receiving the SW
Normal Request after activat-
If Time-out Without Receiving
SPI Commands (75ms), SBC
Watchdog time-out, going to
Timing Word, SBC goes to
V1 undervoltage detection,
Leaving Normal Mode
Microcontroller Reset
after activating Reset
Leaving Stand-by
Request After
goes to Seep
Other Mode
other mode
ing Reset
Normal
Table 11. Stand-by: V1 Active, V2 Passive, V3 Active
S Bus Circuit Sleep Mode
disabled. V3 can be permanently disabled or cyclically active.
Table 12. SBC Sleep Mode: V1/V2 are Passive,
Emergency Mode
is no longer under control, it may decide to switch the SBC to
the Emergency mode. V1, V2, and V3 become passive and
wake-ups are not detected. The only way to leave this mode
is to disconnect the ECU from the battery voltage (BatFail
detection).
Table 13. SBC Emergency Mode: V1:V3 are Passive
Below V1 Reset for More Than
For 33389ADW Only: If V1 is
If SW Timing Not Configured
This is a low power consumption mode. V1 and V2 are
In case the microcontroller detects the ECU or the system
Entering Emergency Mode
Entering Sleep Mode
Normal Request Mode
75 ms After Entering
Entering Stand-by
By SPI Command
By SPI Command
or Passive, Watchdog is Active
V3 is Passive or Cyclic
100 ms
—
—
—
—
FUNCTIONAL DEVICE OPERATION
SBC BatFail Detection (Discon-
nection of the Battery Voltage)
Wake-Up Not Connected to V3
Forced Wake-Up (See Forced
If a Wake-Up is Detected with
If a Wake-Up is Detected with
SPI Wake-Up (See Wake-Up
Going to Normal Request Mode
Leaving Emergency Mode
External Activation of the RST
V1 Under Voltage Detection,
CAN Wake-Up, Going to
Leaving Sleep Mode
OPERATIONAL MODES
After Activating Reset
(permanent sense)
Wake-Up Section)
Normal Request
Leaving Stand-by
by SPI Section)
Cyclic Sense
Pin
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