MM912H634CM1AER2 Freescale Semiconductor, MM912H634CM1AER2 Datasheet - Page 78
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MM912H634CM1AER2
Manufacturer Part Number
MM912H634CM1AER2
Description
64KS12 LIN2xLS/HS Isense
Manufacturer
Freescale Semiconductor
Series
-r
Datasheet
1.MM912G634CM1AE.pdf
(345 pages)
Specifications of MM912H634CM1AER2
Applications
Automotive
Core Processor
HCS12
Program Memory Type
FLASH (64 kB)
Controller Series
HCS12
Ram Size
6K x 8
Interface
LIN
Number Of I /o
-
Voltage - Supply
5.5 V ~ 27 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
48-LQFP Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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4.11
To supply Hall Effect Sensors or similar external loads, the HSUP output is implemented. To reduce power
dissipation inside the device, the output is implemented as a switchable Voltage Regulator, internally connected
to the VS1 supply input. For protection, an Over-temperature Shutdown and a Current Limitation is implemented.
A write to the Hall Supply Register (HSR), when the over-temperature condition is gone, will re-enable the Hall
Supply Output.
The HSUP output is active only during Normal mode. A capacitor CHSUP is recommended for operation.
4.11.1
4.11.1.1
Note:
Freescale Semiconductor
Offset
75.
Reset
0 - HSUPON
W
R
7 - HOTIE
6 - HOTC
(75)
Offset related to 0x0200 for blocking access and 0x300 for non blocking access within the global address space.
Field
0x38
Hall Sensor Supply Output - HSUP
HOTIE
Register Definition
Hall Supply Register (HSR)
7
0
Hall Supply Over-temperature Interrupt Enable
Hall Supply Over-temperature Condition present. During the event, the Hall Supply is shut down. Reading the register will
clear the HOT flag if present. See
Hall Supply On:
0 - Hall Supply Regulator disabled
1 - Hall Supply Regulator enabled
HOTC
6
0
Table 105. HSR - Register Field Descriptions
Table 104. Hall Supply Register (HSR)
MM912_634 Advance Information, Rev. 4.0
5
0
0
Section 4.7, “Interrupts
4
0
0
Description
for details.
3
0
0
Hall Sensor Supply Output - HSUP
2
0
0
1
0
0
Access: User read/write
HSUPON
MCU
0
0
ANALOG
78
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