MM908E624ACDWB/R Motorola, MM908E624ACDWB/R Datasheet - Page 24

• Manufacturer Part Number: MM908E624ACDWB/R
• Description: TRIPLE HIGH-SIDE SWITCH WITH EMBEDDED MCU AND LIN
• Manufacturer: Motorola

Watchdog Configuration
period is selected (typ. 150 ms). If no watchdog function is
required, the WDCONF terminal must be connected to GND.
formula:
VOLTAGE REGULATOR
voltage regulator to provide internal power and external
power for the MCU. The on-chip regulator consist of two
elements, the main voltage regulator and the low-voltage
reset circuit.
and provides a regulated V
the device. The output of the regulator is also connected to
the VDD terminal to provide the 5.0 V to the microcontroller.
Current Limit (Overcurrent) Protection
against overcurrent and short circuit conditions.
Overtemperature Protection
protection having an overtemperature warning (Interrupt -
VDDT) and an overtemperature shutdown.
24
908E624
Functional Description
Functional Device Operation
If the WDCONF terminal is left open, the default watchdog
The watchdog period is calculated using the following
The 908E624 chip contains a low-power, low dropout
The V
The voltage regulator has current limit to protect the device
The voltage regulator also features an overtemperature
DD
P
regulator accepts an unregulated input supply
WD
[ms] = 0.991
DD
*
supply to all digital sections of
R
EXT
[k Ω ] + 0.648
Stop Mode
regulated output voltage. The Stop mode regulator has a
limited output current capability.
Sleep Mode
off.
FACTORY TRIMMING AND CALIBRATION
parameters (e.g., ICG trim value) are stored in the flash
memory of the device. The following flash memory locations
are reserved for this purpose and might have a value different
from the “empty” (0xFF) state:
has to take care not to erase or override these values. If these
parameters are not used, these flash locations can be erased
and otherwise used.
OPERATING MODES OF THE MCU
MCU, refer to the MC68HC908EY16 datasheet.
During Stop mode the Stop mode regulator supplies a
In Sleep mode the voltage regulator external V
To enhance the ease-of-use of the 908E624, various
• 0xFD80:0xFDDF Trim and Calibration Values
• 0xFFFE:0xFFFF Reset Vector
In the event the application uses these parameters, one
For a detailed description of the operating modes of the
Analog Integrated Circuit Device Data
Freescale Semiconductor
DD
is turned