MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 40

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

1.6.3 Oscillator Pins (OSC1 and OSC2)
1.6.4 External Reset Pin (RST)
1.6.5 External Interrupt Pin (IRQ)
1.6.6 External Filter Capacitor Pin (CGMXFC)
1.6.7 ADC Voltage High Reference Pin (V
1.6.8 ADC Voltage Low Reference Pin (V
MC68HC908LJ12
Freescale Semiconductor
—
Rev. 2.1
The OSC1 and OSC2 pins are the connections for the on-chip oscillator
circuit. The OSC1 pin contains a schmitt-trigger and a spike filter for
improved EMC performance. See
A logic 0 on the RST pin forces the MCU to a known start-up state. RST
is bidirectional, allowing a reset of the entire system. It is driven low when
any internal reset source is asserted. A schmitt-trigger and a spike filter
is associated with this pin so that the device is more robust to EMC
noise.This pin also contains an internal pullup resistor. See
System Integration Module
IRQ is an asynchronous external interrupt pin. This pin contains an
internal pullup resistor. See
CGMXFC is an external filter capacitor connection for the CGM. See
Section 8. Clock Generator Module
V
Section 15. Analog-to-Digital Converter (ADC)
V
Section 15. Analog-to-Digital Converter (ADC)
REFH
REFL
is the voltage input pin for the ADC voltage low reference. See
is the voltage input pin for the ADC voltage high reference. See
General Description
REFL
REFH
)
)
Section 18. External Interrupt
(SIM).
Section 7. Oscillator
(CGM).
General Description
(OSC).
Technical Data
Section 9.
(IRQ).
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