MC68HC08AZ32A Datasheet, PDF (33/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
General Description
Pin Assignments
1.4.2 Oscillator Pins (OSC1 and OSC2)
The OSC1 and OSC2 pins are the connections for the on-chip oscillator
circuit. See Clock Generator Module (CGM) on page 117.
1.4.3 External Reset Pin (RST)
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. See System Integration Module
(SIM) on page 95.
1.4.4 External Interrupt Pin (IRQ)
IRQ is an asynchronous external interrupt pin. See External Interrupt
Module (IRQ) on page 179.
1.4.5 Analog Power Supply Pin (V_DDA)
V_DDA is the power supply pin for the analog portion of the Clock
Generator Module (CGM). See Clock Generator Module (CGM) on
page 117.
1.4.6 Analog Ground Pin (V_SSA)
V_SSA is the ground connection for the analog portion of the Clock
Generator Module (CGM). See Clock Generator Module (CGM) on
page 117.
1.4.7 ADC Analog Ground Pin (A_vss/V_REFL)
The AV_SS/V_REFL pin provides both the analog ground connection and
the reference low voltage for the Analog-to-Digital Converter (ADC). See
Analog-to-Digital Converter (ADC-15) on page 411.
MC68HC08AZ32A — Rev 1.0
MOTOROLA
General Description
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Technical Data
33