mc68hc05x4dw Freescale Semiconductor, Inc, mc68hc05x4dw Datasheet - Page 25

• Manufacturer Part Number: mc68hc05x4dw
• Description: Xc68hc705x4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Ceramic
resonator
External clock
13-modes
C
OSC1
(a) Crystal/ceramic resonator
OSC1
oscillator connections
MCU
A ceramic resonator may be used instead of the crystal in cost-sensitive
applications. The circuit in
ceramic resonator. The manufacturer of the particular ceramic resonator
being considered should be consulted for specific information. This
option is recommended only for applications that operate at an external
clock frequency of 8MHz or less. Any application requiring an external
operating frequency greater that 8MHz should use either a crystal
oscillator or an external CMOS compatible clock source.
An external clock should be applied to the OSC1 input with the OSC2 pin
not connected, as shown in
apply when using an external clock input. The equivalent specification of
the external clock source should be used in lieu of t
Freescale Semiconductor, Inc.
For More Information On This Product,
OSC2
Figure 8. Oscillator connections
Modes of Operation and Pin Descriptions
C
OSC2
Go to: www.freescale.com
OSC1
Figure
Figure
(c) External clock source connections
External
(b) Crystal equivalent circuit
OSC1
clock
L
8(a) is recommended when using a
8(c). The t
Modes of Operation and Pin Descriptions
MCU
C
C
0
1
OXOV
OSC2
R
NC
S
specification does not
OXOV
MC68HC05X4 Rev 1.0
.
OSC2
Pin descriptions