MC9S08QE32CLC             Description

The Central Processing Unit (CPU) is the primary component of a computer that acts as its “control center.” The CPU, also referred to as the “central” or “main” processor, is a complex set of electronic circuitry that runs the machine's operating system and apps.

MC9S08QE32CLC              Features

·8-Bit HCS08 Central Processor Unit(CPU)

-Up to 50.33 MHz HCS08 CPU at 3.6 Vto 2.4 V40MHz CPU

at 2.4 V to 2.1 V and 20 MHz CPU at 2.1Vto1.8Vacross temperature range of-40°C to85°C

-HC08 instruction set with added BGNDinstruction -Support for up to 32 interrupt reset sources On-Chip Memory

-Flash read/program/erase over full operating voltage and

temperature

-Random-access memory(RAM

-Security circuitry to prevent unauthorized access to RAM and

flash contents

Power-Saving Modes

-Two very low power stop modes -Reduced power wait mode

-Peripheral clock enable register can disable clocks to unused

modules. thereby reducing currents; allows clocks to remain enabled to specific peripherals in stop3 mode

-Very low power external oscillator that can be used in runwait

and stop modes to provide accurate clock source to real time counter

- 6us typical wake up time from stop3 mode Clock Source Options

-Oscillator(XOSCVLP)-Loop-controlPierce oscillator:

crvstal or ceramic resonator range of31.25 kHz to 38.4 kHz o11 MHz to 16 MHz

-Internal clock source(Ics)-Internal clock source module

containing a frequency-locked-loop(FLL)controlled by

internal or externalreferenceprecision trimming ofinterna reference allows 0.2%resolution and 2%deviation over temperature and voltagesupports CPU frequencies from4kHz to 50.33 MHz System Protection

-Watchdog computer operating properly(COPreset withoption

to run from dedicated 1 kHz internal clock source or bus clock -Low-voltage warning with interrupt.

MC9S08QE32CLC               Applications

Low-power modes:

? System stop modes

— Pseudo stop mode

— Full stop mode with fast wake-up option

? System wait mode