MPC950 데이터 시트보기 (PDF) - Motorola => Freescale

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MPC950

Low Voltage PLL Clock Driver

Motorola => Freescale 

MPC950 MPC951

fsela

PLL_En

Tclk

Ref_Sel

xtal1

xtal

xtal2

OSC

(Pull Down)

FBsel

fselb

MPC950 LOGIC DIAGRAM

PHASE

DETECTOR

VCO

200–480MHz

LPF

÷8/÷16

fselc

MR/OE

fseld

POWER–ON RESET

÷2/÷4

Qa

÷4/÷8

Qb

Qc0

÷4/÷8

Qc1

÷4/÷8

Qd0

Qd1

Qd2

Qd3

Qd4

GNDO

Qb

VCCO

Qa

GNDO

TCLK

PLL_En

Ref_Sel

24 23 22 21 20 19 18 17

25

16

26

15

27

14

28

13

MPC950

29

12

30

11

31

10

32

9

12345678

Qd2

VCCO

Qd3

GNDO

Qd4

VCCO

MR/OE

xtal2

MOTOROLA

2

FUNCTION TABLES

Ref_Sel

1

0

Function

TCLK

XTAL_OSC

PLL_En

1

0

Function

PLL Enabled

PLL Bypass

FBsel

1

0

MR/OE

1

0

Function

÷8

÷16

Function

Outputs Disabled

Outputs Enabled

fseln

1

0

Function

Qa = ÷4; Qb:d = ÷8

Qa = ÷2; Qb:d = ÷4

TIMING SOLUTIONS

BR1333 — Rev 6

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