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MC68HC908RF2 Datasheet, PDF (30/254 Pages) Motorola, Inc – HCMOS Microcontroller Unit
General Description
MCU
VDD
VSS
CBypass
0.1 µF
+
CBulk
VDD
Note: Component values shown represent typical applications.
Figure 1-3. Power Supply Bypassing
1.5.2 Oscillator Pins (OSC1 and OSC2)
The OSC1 and OSC2 pins are the connections to an external clock
source or crystal/ceramic resonator.
1.5.3 External Reset (RST)
A logic 0 on the RST pin forces the MCU to a known startup state. RST
is bidirectional, allowing a reset of the entire system. It is driven low when
any internal reset source is asserted.
The RST pin contains an internal pullup resistor.
For additional information, see Section 6. System Integration Module
(SIM).
1.5.4 External Interrupt Pin (IRQ1)
IRQ1 is an asynchronous external interrupt pin.
The IRQ1 pin contains an internal pullup resistor.
Advance Information
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General Description
MC68HC908RF2 — Rev. 1
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