MC33989DW Freescale Semiconductor, MC33989DW Datasheet - Page 45

• Manufacturer Part Number: MC33989DW
• Description: IC SYSTEM BASE W/CAN 28-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC33989DW

• Controller Type: System Basis Chip
• Interface: CAN
• Voltage - Supply: 5.5 V ~ 18 V
• Current - Supply: 45mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• For Use With: KIT33989DWEVB - KIT EVAL 33989DW HS SBC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Analog Integrated Circuit Device Data
Freescale Semiconductor
• T1:V
• T1: Is dependent on the selected cyclic sense timing in
• T2: It is the same than Lx to INT pulse: typ 100 µs
• The total time is around 5.13 ms (for a cyclic sense total
IDD1 current
INT
55 µs
the TIM2 register (5 ms to 400 ms). LX is sampled 10 µs
before the end of cyclic sense on time. If the LX correct
wake-up level happens just after sample point, the
wake-up will be detected at the next HS1 activation and
a complete period is lost.
time of 5 ms) in the above example.
LX
HS1
INT
DD1
(17 mA typ)
I DD1S-WU
output current deglitcher time:IDD1-DGLT: typ
t1
t1
Wake-up signalled to MCU.
Figure 32. Overcurrent Wake-Up
Wake-up signalled to MCU.
t2
t2
t INT + t S-1STSPI (33µs max)
Figure 33.
t INT + t S-1STSPI (33µs max)
LX with Cyclic Sense
MC33989 CAN INTERFACE
of the MC33989.
Block Diagram
interface of the MC33989.
• T2: Over current detected to SBC wake-up (INT pulse)
• The total time is 148 µs in this case.
This section is a detailed description of the CAN interface
Figure 34
= typ 60 µs
is a simplified block diagram of the CAN
SBC ready to accept SPI command.
SBC ready to accept SPI command.
SUPPLEMENTAL APPLICATION NOTES
TYPICAL APPLICATIONS
33989
45