MCZ33903BD3EK Freescale Semiconductor, MCZ33903BD3EK Datasheet - Page 47

• Manufacturer Part Number: MCZ33903BD3EK
• Description: Canvas 32 DL (3.3V)
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MCZ33903BD3EK

• Main Purpose: Power Management, System Interface
• Embedded: No
• Utilized Ic / Part: MCZ33903
• Primary Attributes: CAN Transceiver
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

SAFE Mode A Illustration:
configuration.
Analog Integrated Circuit Device Data
Freescale Semiconductor
Figure 28
illustrates the event, and consequences when SAFE mode A is selected via the appropriate debug resistor or SPI
Behavior Illustration for Safe State A (R
enter in SAFE mode to evaluate resistor at the DBG pin
GND
step 1: Failure illustration
SAFE
V
100 ms delay time to enter in SAFE mode
SAFE
and monitor ECU external events
RST
V
SAFE
DD
V
RST
RST
DD
DD
8 x 256 ms delay time to enter in SAFE mode
100 ms deglitcher time to activate SAFE and
failure event, i.e W/D
OFF state ON state
to evaluate resistor at DBG pin
OFF state ON state
OFF state
failure event, V
failure event, Reset s/c GND
and monitor ECU external events
and monitor ECU external events
to evaluate resistor at DBG pin
1st
V
Figure 28. SAFE Mode A Behavior Illustration
2.5 V
DD_UV TH
DD
100ms
low
2nd
100ms
ON state
8th
DG
< 6.0 kohm), or Selection by the SPI
GND
step 2: Consequence on
V
SAFE
V
DD
SAFE
RST
SAFE
V
DD
V
RST
RST
DD
DD
BEHAVIOR AT POWER UP AND POWER DOWN
, RST and SAFE
V
DD
< V
DD_UV TH
FAIL SAFE OPERATION
33903/4/5
47