ST7FLITE20 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST7FLITE20

8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI

STMicroelectronics 

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ST7LITE2

Figure 13. Clock Management Block Diagram

CR7 CR6 CR5 CR4 CR3 CR2 CR1 CR0 RCCR

CLKIN

CLKIN

/OSC1

OSC2

Tunable

1% RC Oscillator

fCPU

PLL

8MHz -> 32MHz

12-BIT

AT TIMER 2

OSC,PLLOFF,

OSCRANGE[2:0]

Option bits

CLKIN

CLKIN

/2

DIVIDER

PLL 1MHz -> 8MHz

PLL 1MHz -> 4MHz

CLKIN/2

RC OSC

PLLx4x8

CLKIN/2

fOSC

OSC

1-16 MHZ

or 32kHz

OSC /2

DIVIDER

OSC/2

fOSC /32 DIVIDER

8-BIT

LITE TIMER 2 COUNTER

fOSC/32

1

fOSC 0

OSC,PLLOFF,

OSCRANGE[2:0]

Option bits

fLTIMER

(1ms timebase @ 8 MHz fOSC)

fCPU

TO CPU AND

PERIPHERALS

MCO SMS MCCSR

fCPU

MCO

25/133

1

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