MM912H634CV1AER2 Freescale Semiconductor, MM912H634CV1AER2 Datasheet - Page 140
MM912H634CV1AER2
Manufacturer Part Number
MM912H634CV1AER2
Description
64KS12 LIN2xLS/HS Isense
Manufacturer
Freescale Semiconductor
Series
-r
Datasheet
1.MM912G634CM1AE.pdf
(345 pages)
Specifications of MM912H634CV1AER2
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 ~ 105°C
Mounting Type
Surface Mount
Package / Case
48-LQFP Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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A conversion is divided into the following 27+ clock cycles:
12c (count up to Ch10) + 9c (sample) + 18c (conversion) = 39 cycles from start to end of conversion.
1c (count) + 9c (sample Ch15) + 18c (conversion Ch15) + 4c (in between) + 0c (count further to Ch10 is performed while
converting ch15) + 9c (sample) + 18c (conversion) = 59 cycles from start to end of both conversions.
Freescale Semiconductor
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•
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9 cycle sampling time
18 cycle remaining conversion time
A worst case (only channel 14) of 15 clock cycles to count up to the selected channel (15, 0, 1,....14)
4 cycles between two channels
Example 2. Sequence of Channel 10 (VSENSE) + Channel 15 (Offset Compensation)
Example 1. Single Conversion Channel 10 (VSENSE)
MM912_634 Advance Information, Rev. 4.0
140
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