S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 75

• Manufacturer Part Number: S912XET256J2VAGR
• Description: 16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
• Manufacturer: Freescale Semiconductor

Specifications of S912XET256J2VAGR

• Core: HCS12X
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: LQFP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 24
• Interface Type: CAN, SCI, SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 119
• Number Of Timers: 25
• Program Memory Type: Flash
• Supply Voltage - Max: 1.98 V, 2.9 V, 5.5 V
• Supply Voltage - Min: 1.72 V, 2.7 V, 3.13 V

1.3
The clock and reset generator module (CRG) provides the internal clock signals for the core and all
peripheral modules.
Consult the CRG specification for details on clock generation.
The system clock can be supplied in several ways enabling a range of system operating frequencies to be
supported:
The clock generated by the PLL or oscillator provides the main system clock frequencies core clock and
bus clock. As shown in
the memories, and the peripherals.
Freescale Semiconductor
•
•
•
EXTAL
XTAL
The on-chip phase locked loop (PLL)
the PLL self clocking
the oscillator
System Clock Description
SCI0 . . SCI 7
Bus Clock
RAM
CRG
Figure 1-9
Figure
SPI0 . . SPI2
1-9, these system clocks are used throughout the MCU to drive the core,
shows the clock connections from the CRG to all modules.
MC9S12XE-Family Reference Manual Rev. 1.25
S12X
Figure 1-9. Clock Connections
Core Clock
CAN0 . . CAN4
XGATE
Oscillator Clock
IIC0 & IIC1
FLASH &
Chapter 1 Device Overview MC9S12XE-Family
EEE
ATD0 & ATD1
PIT
ECT
PIM
PWM
TIM
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