CDC925_08 datasheet(3/19 Pages) TI1

Nome de Peças	CDC925

Descrição Electrónicos	133MHz CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS

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Fabricante Electrônico	TI1 [Texas Instruments]

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CDC925

133-MHz CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS

WITH 3-STATE OUTPUTS

SCAS633 – JULY 28, 1999

3

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

3V66 [0–3]

21, 22, 25, 26

O

3.3 V, Type 5, 66-MHz clock outputs

48MHz

30

O

3.3 V, Type 3, 48-MHz clock output

APIC [0–2]

53, 54, 55

O

2.5 V, Type 1, APIC clock outputs

CPU [0–3]

41, 42, 45, 46

O

2.5 V, Type 1, CPU clock outputs

CPU_DIV2 [0–1]

49, 50

O

2.5 V, Type 1, CPU_DIV2 clock outputs

CPU_STOP

36

I

Disables CPU clock to low state

GND

1, 7, 13, 19,

20, 24, 29, 38,

40, 44, 48, 52

Ground

PCI [1–7]

9, 11, 12, 14,

15, 17, 18

O

3.3 V, Type 5, 33-MHz PCI clock outputs

PCI_F

8

O

Free-running 3.3-V, Type 5, 33-MHz PCI clock output

PCI_STOP

37

I

Disables PCI clock to low state

PWR_DWN

35

I

Power down for complete device with outputs forced low

REF0, REF1

2, 3

O

3.3 V, Type 3, 14.318-MHz reference clock output

SEL0, SEL1

32, 33

I

LVTTL level logic select terminals for function selection

SEL133/100

28

I

LVTTL level logic select pins for enabling 100/133 MHz

SPREAD

34

I

Disables SSC function

VDD3.3V

4, 10, 16, 23,

27, 31, 39

Power for the 3V66, 48MHz, PCI, REF outputs and CORE logic

VDD2.5V

43, 47, 51, 56

Power for CPU and APIC outputs

XIN

5

I

Crystal input – 14.318 MHz

XOUT

6

O

Crystal output – 14.318 MHz

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Descrição semelhante - CDC925_08

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
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	CDC921	235Kb / 17P	[Old version datasheet] 133-MHz CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS WITH 3-STATE OUTPUTS
	CDC922	239Kb / 17P	[Old version datasheet] 133-MHz CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS WITH 3-STATE OUTPUTS
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	CDC930	363Kb / 17P	[Old version datasheet] 133-MHz DIFFERENTIAL CLOCK SYNTHESIZER / DRIVER FOR PC MOTHERBOARDS WITH 3-STATE OUTPUTS
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