MM912F634DV1AER2 Freescale Semiconductor, MM912F634DV1AER2 Datasheet - Page 148
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MM912F634DV1AER2
Manufacturer Part Number
MM912F634DV1AER2
Description
16-bit Microcontrollers - MCU DUAL LS/HS SWITCH W. LIN
Manufacturer
Freescale Semiconductor
Datasheet
1.MM912G634DV1AE.pdf
(338 pages)
Specifications of MM912F634DV1AER2
Rohs
yes
Core
HCS12
Processor Series
MM912F634
Data Bus Width
16 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
32 KB
Data Ram Size
2 KB
On-chip Adc
Yes
Operating Supply Voltage
4.5 V to 5.5 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
LQFP-48
Mounting Style
SMD/SMT
A/d Bit Size
10 bit
A/d Channels Available
15
Interface Type
SPI
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
6
Number Of Timers
1
Program Memory Type
Flash
Supply Voltage - Max
4.5 V
Supply Voltage - Min
4.5 V
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Functional Description and Application Information
4.19.5
4.19.5.1
The following analog Channels a routed to the analog multiplexer:
4.19.5.2
To eliminate the Analog Digital Converter Offset, an automatic compensation is implemented. The compensation is based on a
calibrated voltage reference connected to ADC Channel 15. The reference trim is accomplished by the correct CTRx Register
content. See
To activate the Offset compensation feature, the OCE bit in the ADC Config Register (ACR) has to be set, and the CH15 has to
be enabled when starting a new conversion, by writing to the ADC Conversion Control Register (ACCR). The compensation will
work with single and sequence conversion.
Freescale Semiconductor
(continued)
Section 4.25, “MM912F634 - Analog Die
Functional Description
Table 199. Analog Channels
Analog Channel Definitions
Note:
Automatic Offset Compensation
138.
Channel
10
12
13
14
15
11
0
1
2
3
4
5
6
7
8
9
Internal “bg1p25sleep” reference.
AD0 - PTB0 Analog Input
AD1 - PTB1 Analog Input
AD2 - PTB2 Analog Input
AD3 - L0 Analog Input
AD4 - L1 Analog Input
AD5 - L2 Analog Input
AD6 - L3 Analog Input
AD7 - L4 Analog Input
AD8 - L5 Analog Input
Current Sense
Voltage Sense
Temperature Sense
VS1 Sense
not implemented
Bandgap
Calibration Reference
(138)
Trimming". The reference is factory trimmed to 8 LSB.
Description
Analog Digital Converter - ADC
VS1SENSE
BANDGAP
VSENSE
TSENSE
ISENSE
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
CAL
n.i.
MM912F634
148
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