MPC958 Просмотр технического описания (PDF) - Motorola => Freescale

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производитель

MPC958

Low Voltage PLL Clock Driver

Motorola => Freescale 

MPC958

Freescale Semiconductor, Inc.

GNDO

Q1

VCCO

Q0

GNDO

QFB

VCCO

VCO_SEL

24 23 22 21 20 19 18 17

25

16

26

15

27

14

28

13

MPC958

29

12

30

11

31

10

32

9

12345678

Q6

VCCO

Q7

GNDO

Q8

VCCO

Q9

GNDO

FUNCTION TABLES

BYPASS

1

0

Function

PLL Enabled

PLL Bypass

MR/OE Function

1

Outputs Disabled

0

Outputs Enabled

VCO_SEL Function

1

0

PLL_EN

÷2

÷1

Function

1

Select VCO

0

Select PECL_CLK

Figure 2. 32–Lead Pinout (Top View)

ABSOLUTE MAXIMUM RATINGS*

Symbol

Parameter

Min

Max

Unit

VCC

Supply Voltage

–0.3

4.6

V

VI

Input Voltage

–0.3

VCC + 0.3

V

IIN

Input Current

±20

mA

TStor

Storage Temperature Range

–40

125

°C

* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or

conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is

not implied.

THERMAL CHARACTERISTICS

Proper thermal management is critical for reliable system operation. This is especially true for high fanout and high drive

capability products. Generic thermal information is available for the Motorola Clock Driver products. The means of calculating die

power, the corresponding die temperature and the relationship to longterm reliability is addressed in the Motorola application

note AN1545.

MOTOROLA

For More Information On This Product,

Go to: ww2w.freescale.com

TIMING SOLUTIONS

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