MC68HC705C8A Datasheet, PDF (29/222 Pages) Motorola, Inc – HCMOS Microcontroller Unit

MCU
OSC1
OSC2
CERAMIC
RESONATOR
General Description
Pin Functions
Figure 1-10. 3-Pin
Ceramic Resonator
Connections
NOTE:
The bus frequency (f_OP) is one-half the external or crystal frequency
(f_OSC), while the processor clock cycle (t_CYC) is two times the f_OSC
period.
1.7.2.3 External Clock Signal
An external clock from another
CMOS-compatible device can drive the
MCU
OSC1 input, with the OSC2 pin
unconnected, as Figure 1-11 shows.
EXTERNAL
CMOS CLOCK
Figure 1-11. External
Clock
NOTE: The bus frequency (f_OP) is one-half the external frequency (f_OSC) while
the processor clock cycle is two times the f_OSC period.
MC68HC705C8A — Rev. 2.0
MOTOROLA
General Description
Technical Data
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