MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 96

• Manufacturer Part Number: MC68HC708XL36
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

CGM
I/O Signals
Crystal Amplifier
Input Pin (OSC1)
Crystal Amplifier
Output Pin (OSC2)
External Filter
Capacitor Pin
(CGMXFC)
Analog Power Pin
(V
Oscillator Enable
Signal (SIMOSCEN)
MC68HC708XL36
96
DDA
)
NOTE:
NOTE:
The following paragraphs describe the CGM I/O signals.
The OSC1 pin is an input to the crystal oscillator amplifier.
The OSC2 pin is the output of the crystal oscillator inverting amplifier.
The CGMXFC pin is required by the loop filter to filter out phase
corrections. A small external capacitor is connected to this pin.
To prevent noise problems, C
CGMXFC pin as possible, with minimum routing distances and no
routing of other signals across the C
V
V
Route V
capacitors as close as possible to the package.
The SIMOSCEN signal enables the oscillator and PLL.
DDA
DDA
Freescale Semiconductor, Inc.
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is a power pin used by the analog portions of the PLL. Connect the
pin to the same voltage potential as the V
DDA
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carefully for maximum noise immunity and place bypass
CGM
F
should be placed as close to the
F
connection.
DD
pin.
MOTOROLA
14-cgm1m_a