MCZ33905BS3EK Freescale Semiconductor, MCZ33905BS3EK Datasheet - Page 48

• Manufacturer Part Number: MCZ33905BS3EK
• Description: IC SBC CAN HS 3.3V 32SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MCZ33905BS3EK

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DEVICE POWER UP
and ramp down of V
the Crank bit and the two V
DEVICE POWER DOWN
V
V
Crank Bit Reset (INIT Watchdog Register, Bit 0 =0)
enters in Reset Mode due to a V
48
33903/4/5
FUNCTIONAL DEVICE OPERATION
BEHAVIOR AT POWER UP AND POWER DOWN
SUP/1
DD
This section describe the device behavior during ramp up,
D1
The figures below illustrate the device behavior during
Bit 0 = 0 is the default state for this bit.
During V
under-voltage reset selection.
ramp down, based on Crank bit configuration, and
V
VSUP/1
BAT
SUP/1
ramp down, V
SUP/1
3390X
, and the flexibility offered mainly by
Gnd
DD
under-voltage reset thresholds.
DD
DD
VDD
remain ON until device
BEHAVIOR AT POWER UP AND POWER DOWN
under-voltage condition
Figure 30. V
I
_VDD
VSUP/1
VDD
RESET
DD
Start-up Versus V
V
SUP_TH1
V
enabled when V
(V
the SPI). When device is in Reset, if V
“V
Crank Bit Set (INIT Watchdog Register, Bit 0 =1)
V
BATFAIL. This occurs for a V
SUP/1
DD
V
DD
SUP_TH1
The figures below illustrate the device behavior during
The bit 0 is set by SPI write. During V
SUP
remains ON until device detects a POR and set
< 4.6 V or V
slew rate
ramp up. As the Crank bit is by default set to 0, V
SUP/1
”, V
DD
Tramp
SUP/1
is turned OFF.
DD
V
V
< 3.2 V typically, threshold selected by
DD_OFF
10% V
DD_START UP
90% V
is above V
Analog Integrated Circuit Device Data
DD_START UP
DD_START UP
V
1.0 ms
SUP/1
DD_UV TH
SUP TH 1
V
DD NOMINAL
V
Freescale Semiconductor
approx 3.0 V.
SUP_NOMINAL
(typically 4.65 V)
SUP/1
SUP/1
parameters.
is below
(ex 5.0 V)
ramp down,
(ex 12 V)
DD
is