MM912H634DM1AER2 Freescale Semiconductor, MM912H634DM1AER2 Datasheet - Page 6

• 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

Table 3. MM912F634 Pin Description
Pin Assignment
2.1
The following table gives a brief description of all available pins on the MM912F634 package. Refer to the highlighted chapter for
detailed information.
Freescale Semiconductor
Pin #
10
12
13
14
15
16
17
18
11
1
2
3
4
5
6
7
8
9
MM912F634 Pin Description
Pin Name
VSENSE
EVSSX
EVDDX
EXTAL
DGND
EVDD
VDDX
EVSS
XTAL
TEST
VDD
PA5
PA4
PA3
PA2
PA1
PA0
NC
Not connected Pin
MCU Oscillator Pin
MCU Oscillator Pin
MCU Test Pin
MCU PA5 Pin
MCU PA4 Pin
MCU PA3 / SS Pin
MCU PA2 / SCK Pin
MCU PA1 / MOSI Pin
MCU PA0 / MISO Pin
MCU 5.0 V Ground Pin
MCU 5.0 V Supply Pin
MCU 2.5 V Ground Pin
MCU 2.5 V Supply Pin
Voltage Regulator
Output 2.5 V
Voltage Regulator Output
5.0 V
Digital Ground Pin
Voltage Sense Pin
Formal Name
This pin is reserved for alternative function and should be left floating or connected
to GND.
EXTAL is one of the optional crystal/resonator driver and external clock pins. On
reset, all the device clocks are derived from the Internal Reference Clock. See
Section 4.33, “External Oscillator
XTAL is one of the optional crystal/resonator driver and external clock pins. On
reset, all the device clocks are derived from the Internal Reference Clock. See
Section 4.33, “External Oscillator
This input only pin is reserved for test. This pin has a pull-down device. The TEST
pin must be tied to EVSS in user mode.
General purpose port A input or output pin 5. See
Module (9S12I32PIMV1)"
General purpose port A input or output pin 4. See
Module
General purpose port A input or output pin 3, shared with the SS signal of the
integrated SPI Interface. See
(9S12I32PIMV1)".
General purpose port A input or output pin 2, shared with the SCLK signal of the
integrated SPI Interface. See
(9S12I32PIMV1)".
General purpose port A input or output pin 1, shared with the MOSI signal of the
integrated SPI Interface. See
(9S12I32PIMV1)".
General-purpose port A input or output pin 0, shared with the MISO signal of the
integrated SPI Interface. See
(9S12I32PIMV1)".
Ground for the MCU 5.0 V power supply.
MCU 5.0 V - I/O buffer supply. See
Overview".
Ground for the MCU 2.5 V power supply.
MCU 2.5 V - MCU Core- and Flash power supply. See
- MCU Die
+2.5 V main voltage regulator output pin. External capacitor (C
Section 4.4, “Power
+5.0 V main voltage regulator output pin. External capacitor (C
Section 4.4, “Power
This pin is the device digital ground connection for the 5.0 V and 2.5 V logic. DGND,
LGND, and AGND are internally connected to PGND via a back to back diode.
Battery voltage sense input. This pin can be connected directly to the battery line for
voltage measurements. The voltage present at this input is scaled down by an
internal voltage divider, and can be routed to the internal ADC via the analog
multiplexer.The pin is self-protected against reverse battery connections. An
external resistor (R
Voltage Sense -
(9S12I32PIMV1)".
Overview".
VSENSE".
VSENSE
Supply".
Supply".
) is needed for protection
Section 4.27, “Port Integration Module
Section 4.27, “Port Integration Module
Section 4.27, “Port Integration Module
Section 4.27, “Port Integration Module
(S12SS12SCRGV1)".
(S12SS12SCRGV1)".
Description
Section 4.26, “MM912F634 - MCU Die
MM912F634 Pin Description
Section 4.27, “Port Integration
Section 4.27, “Port Integration
(4)
. See
Section 4.26, “MM912F634
Section 4.22, “Supply
VDD
VDDX
) needed. See
) needed. See
MM912F634
6