mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 42

• Manufacturer Part Number: mc68hc908sr12
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

General Description
1.6.1 Power Supply Pins (V
1.6.2 Oscillator Pins (OSC1 and OSC2)
Data Sheet
42
V
from a single power supply.
Fast signal transitions on MCU pins place high, short-duration current
demands on the power supply. To prevent noise problems, take special
care to provide power supply bypassing at the MCU as
shows. Place the C1 bypass capacitor as close to the MCU as possible.
Use a high-frequency-response ceramic capacitor for C1. C2 is an
optional bulk current bypass capacitor for use in applications that require
the port pins to source high current levels.
V
The OSC1 and OSC2 pins are the connections for the on-chip oscillator
circuit. See
Generator Module
DD
SS
must be grounded for proper MCU operation.
and V
DD
and V
SS
Section 7. Oscillator (OSC)
are the power supply and ground pins. The MCU operates
SS
General Description
Figure 1-4. Power Supply Bypassing
)
(CGM).
NOTE: Component values shown
V
DD
V
DD
represent typical applications.
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
MCU
0.1 µF
+
C1
C2
and
Section 8. Clock
V
SS
Freescale Semiconductor
Figure 1-4