NXP MC9S08FL8CLC

MC9S08FL8CLC              Description

The MC9S08FL16 series uses ICS module as the clock source. The ICS module can use internal or external clock sources as a reference to provide CPU clocks up to 20 MHz. The output of the ICS module includes the OSCOUT-XOSC output that provides an external reference clock to the ADC. The ICSFFCLK-ICS fixed frequency clock reference (about 32.768 KHz) provides double fixed lock signals for TPM and MTIM16. The ICSOUT-ICS CPU clock provides twice as much bus clock as the base clock of the peripheral. The ICSLCLK- standby BDC clock provides a debug signal to the BDC module. The TCLK pin is an additional external clock source. When TCLK is enabled, a backup clock source can be provided for TPM and MTIM16. The 1 kHz clock on chip provides the clock source for the COP module.

MC9S08FL8CLC                     Features

8-Bit S08 Central Processor Unit (CPU)

? Up to 20 MHz CPU at 4.5 V to 5.5 V across

temperature range of –40 °C to 85 °C

? HC08 instruction set with added BGND instruction

? Support for up to 32 interrupt/reset sources

On-Chip Memory

? Up to 16 KB flash read/program/erase over full

operating voltage and temperature

? Up to 1024-byte random-access memory (RAM)

? Security circuitry to prevent unauthorized access

to RAM and flash contents

Power-Saving Modes

? Two low power stop modes; reduced power wait

mode

? Allows clocks to remain enabled to specific

peripherals in stop3 mode

Clock Source Options

? Oscillator (XOSC) — Loop-control Pierce

oscillator; crystal or ceramic resonator range of

31.25 kHz to 39.0625 kHz or 1 MHz to 16 MHz

? Internal Clock Source (ICS) — Internal clock

source module containing a

frequency-locked-loop (FLL) controlled by internal

or external reference; precision trimming of

internal reference allows 0.2% resolution and 2%

deviation over temperature and voltage; supports

bus frequencies up to 10 MHz

System Protection

? Watchdog computer operating properly (COP)

reset with option to run from dedicated 1 kHz

internal clock source or bus clock

? Low-voltage detectionwith reset or interrupt;

selectable trip points

? Illegal opcode detection with reset

MC9S08FL8CLC                     Applications

TPM and MTIM16