MC33742SDW Freescale, MC33742SDW Datasheet - Page 53

• Manufacturer Part Number: MC33742SDW
• Manufacturer: Freescale

Specifications of MC33742SDW

• Data Rate: 1000Kbps
• Number Of Transceivers: 1
• Standard Supported: CAN 2.0
• Operating Supply Voltage (max): 27V
• Operating Supply Voltage (typ): 5/9/12/15/18/24V
• Operating Supply Voltage (min): 4.5V
• Package Type: SOIC W
• Supply Current: 45mA
• 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 31. TIM1 Control Bits
Table 32. Timing Register Status Bits
Table 33. TIM2 Timing and CANL Failure Diagnostic Register
Analog Integrated Circuit Device Data
Freescale Semiconductor
Notes
Reset Condition (Write)
64.
No Watchdog Clear Allowed
WDW
Watchdog Timing x 50%
0
0
0
0
1
1
1
1
See
Window Closed
(Watchdog Timing Selected by TIM1 Bit WDW =1)
Reset Value
$101b
Table
TIM2
CANL2VDD
CANL2GND
CANL2BAT
Figure 28. Window Watchdog
Name
TXPD
13, page 47, for definitions of reset conditions.
WDT1
0
0
1
1
0
0
1
1
Watchdog Period
(64)
R/W
Window Open for Watchdog Clear
W
R
–
–
Watchdog Timing x 50%
WDT0
0
1
0
1
0
1
0
1
CANL2VDD
D3
1
–
–
Logic
Timing (ms typ)
0
1
0
1
0
1
0
1
9.75
9.75
100
350
100
350
45
45
No CANL short to VDD.
CANL short to VDD.
No CANL short to VSUP .
CANL short to VSUP .
No CANL short to GND.
CANL short to GND.
No TXD dominant.
TXD dominant.
POR, RESET
CANL2BAT
CSP2
D2
0
Watchdog Period 1
Watchdog Period 2
Watchdog Period 3
Watchdog Period 4
Watchdog Period 1
Watchdog Period 2
Watchdog Period 3
Watchdog Period 4
(Watchdog Timing Selected by TIM1 Bit WDW = 0)
Parameter
Figure 29. Timeout Watchdog
Window Open for Watchdog Clear
Failure Description
Watchdog Period
LOGIC COMMANDS AND REGISTERS
POR, RESET
CANL2GND
FUNCTIONAL DEVICE OPERATION
CSP1
D1
0
No Window Watchdog
Watchdog Window enabled
(Window length is half the
Watchdog Timing).
Description
POR, RESET
CSP0
TXPD
D0
0
33742
53