Freescale Semiconductor
Advance Information
Document Number: MM908E624
Rev. 10.0, 8/2011
Integrated Triple High Side
Switch with Embedded MCU
and LIN Serial Communication
for Relay Drivers
908E624
HIGH SIDE SWITCH
The 908E624 is an integrated single-package solution that
includes a high performance HC08 microcontroller with a
SMARTMOS analog control IC. The HC08 includes flash memory, a
timer, enhanced serial communications interface (ESCI), an analogto-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, current sense 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
• Pb-free packaging designated by suffix code EW
EW (Pb-FREE) SUFFIX
98ASA99294D
54-pin SOICW
ORDERING INFORMATION
Temperature
Range (TA)
Device
MM908E624ACEW/ R2
MM908E624ACPEW/ R2
- 40°C to 85°C
54 SOICW
MM908E624AYEW/ R2
MM908E624AYPEW/ R2
- 40°C to 125°C
VBAT
LIN Interface
5.0 V
Microcontroller
Ports
LIN
VREFH
VDDA
EVDD
VCC
VDD
VREFL
VSSA
EVSS
AGND
GND
VSP1
VSP
HS3
908E624
RXD
PTE1/RXD
RST
RST_A
IRQ
IRQ_A
PTD0/TACH0
PW/MIN
PTA0-4
PTB1;3-7
PTC2-4
PTD1/TACH1
L1
L2
HS1
M
HS2
+E
WDCONF
To Microcontroller A/D Channel
OUT
-E
Figure 1. 908E624 Simplified Application Diagram
*This document contains certain information on a product under development.
Freescale reserves the right to change or discontinue this product without notice.
© Freescale Semiconductor, Inc., 2011. All rights reserved.
Package
