MM912H634DM1AER2 Freescale Semiconductor, MM912H634DM1AER2 Datasheet - Page 245

• Manufacturer Part Number: MM912H634DM1AER2
• Description: 16-bit Microcontrollers - MCU 64KS12 LIN2XLS/HS ISENSE
• Manufacturer: Freescale Semiconductor

Specifications of MM912H634DM1AER2

• 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: 5.5 V to 18 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: 15
• Number Of Timers: 1
• Program Memory Type: Flash
• Supply Voltage - Max: 18 V
• Supply Voltage - Min: 5.5 V

Functional Description and Application Information
4.32.2
This section lists and describes the signals that connect off chip.
4.32.2.1
RESET is an active low bidirectional reset pin. As an input it initializes the MCU asynchronously to a known start-up state. As an
open-drain output it indicates that a System Reset or Power-on Reset (internal to MCU) has been triggered.
Freescale Semiconductor
EXTAL
XTAL
VDD
VSS
RESET
Signal Description
RESET
4MHz-16MHz
Full swing
Oscillator
Pierce
COP
Watchdog
S12SMMC
Power on
detect
S12SCRG
OSC4MHZ
RDIV[2:0]
FLL Reference Clock
OSCEN
Illegal Address Access
Power-On Detect
UPOSC
Figure 72. Block diagram of 9S12I32PIMV1
REFS
MULT[6:0]
Reference
128 - 512
Divider
Oscillator
Monitor
COP time out
Reference
Monitor fail
TRIM[8:0]
Internal
Clock
Frequency locked
loop (FLL)
Digital
Controlled
Oscillator
(DCO)
Digital Filter
multiply by
1000 +
(2*MULT)
PORF
speed
adjust
DCO Clock
Generator
Reset
S12S Clocks and Reset Generator (S12SCRGV1)
BCLKS
LOCKIE
LOCKIF
LOCKST
ILAF
BDIV[3:0]
Internal Reference Clock
Bus
Divider
1 - 16
divide
by 5
&
divide
by 2
FLL Lock Interrupt
Power-On Reset
Oscillator Clock
System Reset
BDM Clock
Core Clock
Bus Clock
MM912F634
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