MC9S12XD256VAG Freescale Semiconductor, MC9S12XD256VAG Datasheet - Page 120

• Manufacturer Part Number: MC9S12XD256VAG
• Description: IC MCU 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XD256VAG

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 80MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 119
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 14K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 3 Pierce Oscillator (S12XOSCLCPV1)
3.1.3
Figure 3-1
3.2
This section lists and describes the signals that connect off chip
3.2.1
Theses pins provides operating voltage (V
allows the supply voltage to the XOSC to be independently bypassed.
3.2.2
These pins provide the interface for either a crystal or a 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 from the
120
External Signal Description
shows a block diagram of the XOSC.
Block Diagram
V
EXTAL and XTAL — Input and Output Pins
DDPLL
and V
Detector
Peak
EXTAL
SSPLL
MC9S12XDP512 Data Sheet, Rev. 2.21
Figure 3-1. XOSC Block Diagram
— Operating and Ground Voltage Pins
Gain Control
DDPLL
Monitor
Clock
) and ground (V
Rf
V
DDPLL
Monitor_Failure
= 2.5 V
OSCCLK
SSPLL
XTAL
) for the XOSC circuitry. This
Freescale Semiconductor