STR71XF datasheet(44/78 Pages) STMICROELECTRONICS

部件名	STR71XF

功能描述	ARM7TDMI??32-bit MCU with Flash, USB, CAN 5 timers, ADC, 10 communications interfaces

PDF	78 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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44 / 78 page

Electrical parameters

STR71xF

44/78

Figure 16.

RTC crystal oscillator and resonator

PLL electrical characteristics

V33 = 3.0 to 3.6V, V33IOPLL = 3.0 to 3.6V, TA = -40 / 85 °C unless otherwise specified.

DEVICE

Table 21.

PLL1 characteristics

Symbol

Parameter

Test conditions

Value

Unit

Min

Typ

Max

fPLLCLK1 PLL multiplier output clock

165

MHz

fPLL1

PLL input clock

FREF_RANGE = 0

1.5

3.0

MHz

FREF_RANGE = 1

MX[1:0]=’00’ or ‘01’

3.0

8.25

MHz

FREF_RANGE = 1

MX[1:0]=’10’ or ‘11’

3.0

MHz

PLL input clock duty cycle

fFREE1

PLL free running frequency

FREF_RANGE = 0

MX[1:0]=’01’ or ‘11’

125

kHz

FREF_RANGE = 0

MX[1:0]=’00’ or ‘10’

250

kHz

FREF_RANGE = 1

MX[1:0]=’01’ or ‘11’

250

kHz

FREF_RANGE = 1

MX[1:0]=’00’ or ‘10’

500

kHz

tLOCK1

PLL lock time

FREF_RANGE = 0

Stable Input Clock

Stable V33IOPLL, V18

300

µs

FREF_RANGE = 1

Stable Input Clock

Stable V33IOPLL, V18

600

µs

∆tJITTER1 PLL jitter (peak to peak)

tPLL = 4 MHz, MX[1:0]=’11’

Global Output division = 32

(Output Clock = 2 MHz)

0.7

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