MM912H634DM1AER2 Freescale Semiconductor, MM912H634DM1AER2 Datasheet - Page 256

• 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
4.33
4.33.1
The full swing Pierce oscillator (S12SCRG) module provides a robust clock source with an external crystal or ceramic resonator.
4.33.2
The S12SCRG module provides the following features:
4.33.3
The S12SCRG contains the registers and associated bits for controlling and monitoring the oscillator module. Two modes of
operation exist:
4.33.4
Figure 78
Freescale Semiconductor
•
•
•
1.
2.
Full rail-to-rail (2.5 V nominal) swing oscillation with low EM susceptibility
High noise immunity due to input hysteresis
Low power consumption due to operation with 2.5 V (nominal) supply
Off (OSCEN=0)
Full swing Pierce oscillator (OSCEN=1)
shows a block diagram of the S12SCRG module.
External Oscillator (S12SS12SCRGV1)
Introduction
Features
Modes of Operation
Block Diagram
Enable
EXTAL
Figure 78. S12SCRG Block Diagram
V
DD
= 2.5 V
XTAL
External Oscillator (S12SS12SCRGV1)
Oscillator Clock
MM912F634
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