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Freescale Semiconductor Technical Data
Integrated Quad Half-bridge and Triple High Side with Embedded MCU and LIN for High End Mirror
The 908E621 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), a 10 bit analog-to-digital converter (ADC), internal serial peripheral interface (SPI), and an internal clock generator module (ICG). The analog control die provides four half-bridge and three high side outputs with diagnostic functions, a Hall effect sensor input, analog inputs, voltage regulator, window 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 high end mirrors.
Features
• High performance M68HC908EY16 core • 16 KB of on-chip flash memory, 512 B of RAM • Two 16-bit, two-channel timers • LIN physical layer interface • Autonomous MCU watchdog / MCU supervision • One analog input with switchable current source • Four low RDS(ON) half-bridge outputs • Three low RDS(ON) high side outputs • Wake-up and 2 or 3-pin Hall effect sensor input • 12 microcontroller I/Os • Pb-free packaging designated by suffix codes EK
Document Number: MM908E621 Rev. 6.0, 4/2012
908E621
QUAD HALF-BRIDGE AND TRIPLE HIGH SIDE SWITCH WITH EMBEDDED MCU AND LIN
EK (Pb-Free) 98ASA10712D 54-PIN SOICW-EP
ORDERING INFORMATION
Device (Add an R2 suffix for Tape and reel orders)
Temperature Range (TA)
Package
MM908E621ACPEK
-40 to 85°C 54 SOICW-EP
100 nF
4.7 μF
μC PortA
μC PortB
μC PortC
μC PortD μC PortE
Internally Connected Internally Connected
LIN VSP1:8] VDDA/VREFH
L0
EVDD VDD
HB1
VSSA/VREFL
EVSS VSS
908E621
HB2 HB3
RST A
RST
HB4
IRQ A IRQ
HS1
PTA/KBD0 PTA1/KBD1
HS2
PTA2/KBD2 PTA3/KBD3
HS3
PTA4/KBD4
HVDD
PTB3/AD3
A0
PTB4/AD4 PTB5/AD5
A0CST
PTC2/MCLK
H0
PTC3/OSC2
PTC4/OSC1
TESTMODE
PTD0/TACH0 PTD1/TACH1 PTE1/RXD
EP GND[1:4]
>22 μF Wake-up Input
100 nF
M M 4 x Half-brideOutputs M
High Side Output 1
High Side Output 2
High Side Output 3 Switched 5.0 V Output Analog Input with Curet Source Analog Input Current Source Trim
Two 3-pin Hall Sensor Input
Pull to GND for User Mode
Figure 1. 908E621 Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2007-2012. All rights reserved.
Analog Integrated Circuit Device Data Freescale Semiconductor
IRQ RST VSSA/VREFL EVSS EVDD VDDA/VREFH
908E621
2
PTA0/KBD0 PTA1/KBD1 PTA2/KBD2 PTA3/KBD3 PTA4/KBD4
PTB3/AD3 PTB4/AD4 PTB5/AD5 PTC2/MCLK PTC3/OSC2 PTC4/OSC1 PTD1/TACH1
FLSVPP
M68HC08 CPU
CPU Registers
ALU
Control and Status Register, 64 Bytes User Flash, 15,872 Bytes User RAM,.