MPC958

MOTOROLA

TIMING SOLUTIONS

2

GNDO

Q1

VCCO

Q0

GNDO

QFB

VCO_SEL

Q6

VCCO

Q7

GNDO

Q8

VCCO

25

26

27

28

29

30

31

32

15

14

13

12

11

10

9

123456

78

24

23

22

21

20

19

18

17

16

MPC958

FUNCTION TABLES

BYPASS

Function

1

0

PLL Enabled

PLL Bypass

MR/OE

Function

1

0

Outputs Disabled

Outputs Enabled

Figure 2. 32–Lead Pinout (Top View)

VCO_SEL

Function

1

0

÷2

÷1

PLL_EN

Function

1

0

Select VCO

Select PECL_CLK

Q9

GNDO

VCCO

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.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com