S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 500

• 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

Chapter 12 Pierce Oscillator (S12XOSCLCPV2)
12.1.3
Figure 12-1
12.2
This section lists and describes the signals that connect off chip
12.2.1
Theses pins provides operating voltage (V
allows the supply voltage to the XOSC to use an independent bypass capacitor.
12.2.2
These pins provide the interface for either a crystal or a 1.8V CMOS compatible clock to control the
internal clock generator circuitry. EXTAL is the external clock input or the input to the crystal oscillator
amplifier. XTAL is the output of the crystal oscillator amplifier. The MCU internal system clock is derived
500
External Signal Description
Block Diagram
VDDPLL and VSSPLL — Operating and Ground Voltage Pins
EXTAL and XTAL — Input and Output Pins
shows a block diagram of the XOSC.
Detector
Peak
EXTAL
MC9S12XE-Family Reference Manual Rev. 1.25
Figure 12-1. XOSC Block Diagram
Gain Control
DDPLL
Monitor
Clock
) and ground (V
Rf
V
DDPLL
Monitor_Failure
= 1.8 V
OSCCLK
SSPLL
XTAL
) for the XOSC circuitry. This
Freescale Semiconductor