MM908E624
Internal Rev 4.0, 12/2004
Freescale Semiconductor
Technical Data
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2004. All rights reserved.
Integrated Triple High-Side
Switch with Embedded MCU
and LIN Serial Communication
for Relay Drivers
The 908E624 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 module. The analog
control die provides three high-side outputs with diagnostic functions,
voltage regulator, watchdog, operational amplifier, 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 high-current motors
applications using relays (e.g., window lifts, fans, and sun roofs).
Features
• High-Performance M68HC908EY16 Core
• 16 K Bytes of On-Chip Flash Memory
• 512 Bytes of RAM
• Internal Clock Generator Module
• Two 16-Bit, 2-Channel Timers
• 10-Bit Analog-to-Digital Converter (ADC)
• LIN Physical Layer Interface
• Low Dropout Voltage Regulator
• Three High-Side Outputs
• Two Wake-Up Inputs
• 16 Microcontroller I/Os
Figure 1. 908E624 Simplified Application Diagram
TRIPLE HIGH-SIDE SWITCH WITH
EMBEDDED MCU AND LIN
908E624
ORDERING INFORMATION
Device
Temperature
Range (T
A
)
Package
MM908E624ACDWB/R -40°C to 85°C 54 SOICW
DW SUFFIX
98ASA99294D
54-TERMINAL SOICW
M
PTD1/TACH1
PTA0−4
PWMin
PTD0/TACH0
IRQB_A
IRQB
RSTB_A
RSTB
PTE1/RxD
RxD
GND
EVSS
VSSA
VREFL
VDD
EVDD
VDDA
VREFH
LIN
HS3
L1
L2
HS1
HS2
+E
OUT
-E
WDCONF
VSUP1 VSUP2
VBAT
LIN
Interface
Microcontroller
Ports
To Microcontroller A/D Channel
+5.0 V
VCC
AGND
PTB1;3−7
PTC2−4