Freescale Semiconductor
Technical Data
Document order number: MM908E626
Rev.4.0, 9/2008
Integrated Stepper Motor Driver
with Embedded MCU and LIN
Serial Communication
The 908E626 is an integrated single-package solution that includes
a high performance HC08 microcontroller with a
SMARTMOS
TM
analog control IC. The HC08 includes flash memory, a timer, enhanced
serial communications interface (ESCI), an analog-to-digital converter
(ADC), serial peripheral interface (SPI) (only internal), and an internal
clock generator (ICG) module. The analog control die provides fully
protected H-bridge outputs, voltage regulator, autonomous watchdog,
and local interconnect network (LIN) physical layer.
The single-package solution, together with LIN, provides optimal
application performance adjustments and space-saving PCB design. It
is well suited for the control of automotive stepper applications like
climate control and light-levelling.
Features
• High performance M68HC08EY16 core
• 16 K bytes of on-chip flash memory
• 512 bytes of RAM
• Internal clock generation module
• Two 16-bit, 2-channel timers
• 10-Bit Analog-to-Digital converter
• Four low R
DS(ON)
half-bridge outputs
• 13 microcontroller I/Os
• Pb-free packaging designated by suffix code EK
908E626
STEPPER MOTOR DRIVER
WITH EMBEDDED MCU AND LIN
DWB SUFFIX
EK SUFFIX (PB-FREE)
98ARL10519D
54-PIN SOICWB-EP
ORDERING INFORMATION
Device
MM908E626AVEK
MM908E626AVDWB
Temperature
Range (T
A
)
-40°C to 115°C
Package
54 SOICW
EP
908E626 Simplified Application Diagram
908E626
LIN
VREFH
VDDA
EVDD
VDD
VREFL
VSSA
EVSS
VSS
RST
RST_A
IRQ
IRQ_A
SS
PTB1/AD1
RXD
PTE1/RXD
PTD1/TACH1
FGEN
BEMF
PTD0/TACH0/BEMF
VSUP[1:3]
HB1
HB2
HB3
HB4
S
N
Bipolar
Step
Motor
HVDD
Switchable Internal
V
DD
Output
GND[1:2] EP
Port A I/Os
Port B I/Os
Port C I/Os
Microcontroller
Ports
Figure 1. 908E626 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2005-2008. All rights reserved.
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
