MM912F634DV1AER2 Freescale Semiconductor, MM912F634DV1AER2 Datasheet - Page 61
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
4.4.1
To supply the MCU die and minor additional loads two cascaded voltage regulators have been implemented, VDDX (5.0 V) and
VDD (2.5 V). External capacitors (C
4.4.2
To guarantee safe power up and down behavior, special dependencies are implemented to prevent unwanted MCU execution.
Figure 18
Freescale Semiconductor
shows a standard power up and power down sequence.
Voltage Regulators VDD (2.5 V) & VDDX (5.0 V)
Power Up Behavior / Power Down Behavior
ADC2p5
HSUP
C
C
HSUP
ADC
VDD
HS1
HS2
) and (C
Figure 17. MM912F634 Power Supply
VDDX
HSUP (18V)
HS1 & HS2
Reference
Regulator
ADC 2.5V
VROV
) are required for proper regulation.
VDDX
VDD
INTERNAL
INTERNAL
HVI
VDD (2.5V)
LVI
VDDX (5V)
Regulator
Regulator
bg1p25sleep
ADC
÷
LVRX
LVR
LBI
C
C
VDDX
VDD
VDDX
VDD
Power Supply
MM912F634
61
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