908E626_09 Datasheet, PDF (16/44 Pages) Freescale Semiconductor, Inc – Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication

FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
VSSA is the ground pin for the ADC and should be tied to the
same potential as EVSS via separate traces.
For details refer to the 68HC908EY16 datasheet.
MCU POWER SUPPLY PINS (EVDD AND EVSS)
EVDD and EVSS are the power supply and ground pins.
The MCU operates from a single power supply.
Fast signal transitions on MCU pins place high, short-
duration current demands on the power supply. To prevent
noise problems, take special care to provide power supply
bypassing at the MCU.
For details refer to the 68HC908EY16 datasheet.
TEST PIN (FLSVPP)
This pin is for test purposes only. This pin should
be either left open (not connected) or connected to GND.
EXPOSED PAD PIN
The exposed pad pin on the bottom side of the package
conducts heat from the chip to the PCB board. For thermal
performance the pad must be soldered to the PCB board. It
is recommended that the pad be connected to the ground
potential.
908E626
16
Analog Integrated Circuit Device Data
Freescale Semiconductor