ICS93718 datasheet(1/8 Pages) ICST

номер детали	ICS93718

подробное описание детали	DDR and SDRAM Buffer

PDF	8 Pages

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производитель	ICST [Integrated Circuit Systems]

домашняя страница	http://www.icst.com

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Integrated

Circuit

Systems, Inc.

ICS93718

0434D—10/10/03

Block Diagram

DDR and SDRAM Buffer

Pin Configuration

48-Pin SSOP

Recommended Application:

DDR & SDRAM fanout buffer, for VIA Pro 266, KT266 and

P4X266 DDR chipsets

Product Description/Features:

•

Low skew, fanout buffer

•

1 to 12 differential clock distribution

•I

2C for functional and output control

•

Feedback pin for input to output synchronization

•

Supports up to 4 DDR DIMMs or 3 SDRAM DIMMs +

2 DDR DIMMs

•

Frequency supports up to 200MHz (DDR400)

•

Supports Power Down Mode for power

mananagement

•

CMOS level control signal input

Switching Characteristics:

•

OUTPUT - OUTPUT skew: <100ps

•

Output Rise and Fall Time for DDR outputs: 500ps -

700ps

•

DUTY CYCLE: 47% - 53%

FB_OUT

VDD3.3_2.5

GND

DDRT0_SDRAM0

DDRC0_SDRAM1

DDRT1_SDRAM2

DDRC1_SDRAM3

VDD3.3_2.5

GND

DDRT2_SDRAM4

DDRC2_SDRAM5

VDD3.3_2.5

BUF_IN

GND

DDRT3_SDRAM6

DDRC3_SDRAM7

VDD3.3_2.5

GND

DDRT4_SDRAM8

DDRC4_SDRAM9

DDRT5_SDRAM10

DDRC5_SDRAM11

VDD3.3_2.5

SDATA

SEL_DDR*

VDD2.5

GND

DDRT11

DDRC11

DDRT10

DDRC10

VDD2.5

GND

DDRT9

DDRC9

VDD2.5

PD#*

GND

DDRT8

DDRC8

VDD2.5

GND

DDRT7

DDRC7

DDRT6

DDRC6

GND

SCLK

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

*Internal Pull-up Resistor of 120K to VDD

SCLK

SDATA

SEL_DDR*

PD#

BUF_IN

Control

Logic

FB_OUT

DDRT0_SDRAM0

DDRT1_SDRAM2

DDRT2_SDRAM4

DDRT3_SDRAM6

DDRT4_SDRAM8

DDRT5_SDRAM10

DDRT(11:6)

DDRC0_SDRAM1

DDRC1_SDRAM3

DDRC2_SDRAM5

DDRC3_SDRAM7

DDRC4_SDRAM9

DDRC5_SDRAM11

DDRC (11:6)

Functionality

E

D

O

M8

4

N

I

P

D

V

5

.

2

_

3

.

3

N

I

P

,

5

1

,

1

,

0

1

,

7

,

6

,

5

,

4

2

,

1

2

,

0

2

,

9

1

,

6

1

R

D

e

d

o

M

1

=

R

D

_

L

E

SV

5

.

2

e

b

ll

i

w

s

t

u

p

t

u

o

e

s

e

h

T

s

t

u

p

t

u

o

R

D

S

/

R

D

e

d

o

M

0

=

R

D

_

L

E

SV

3

.

3

e

b

ll

i

w

s

t

u

p

t

u

o

e

s

e

h

T

M

A

R

D

S

d

r

a

d

n

a

t

s

t

u

p

t

u

o

Аналогичный номер детали - ICS93718

производитель	номер детали	датащи	подробное описание детали
Renesas Technology Corp	ICS93718	231Kb / 10P	DDR and SDRAM Buffer 02/11/07
Integrated Device Techn...	ICS93718	102Kb / 9P	DDR and SDRAM Buffer

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Аналогичное описание - ICS93718

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Integrated Circuit Syst...	ICS93725	66Kb / 8P	DDR and SDRAM Zero Delay Buffer
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List of Unclassifed Man...	PLL103-02	208Kb / 7P	DDR SDRAM Buffer for Desktop PCs with 4 DDR DIMMS
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PhaseLink Corporation	PLL103-06	145Kb / 7P	DDR SDRAM Buffer with 2 DDR or 3 SDRAM DIMMS
Integrated Device Techn...	ICS93718	102Kb / 9P	DDR and SDRAM Buffer
Abracon Corporation	ABB0302	63Kb / 6P	DDR SDRAM Buffer for Desktop PCs with 4 DDR DIMMS
Renesas Technology Corp	ICS93718	231Kb / 10P	DDR and SDRAM Buffer 02/11/07
	ICS93725	99Kb / 8P	DDR and SDRAM Zero Delay Buffer 08/01/03
	ICS93738	343Kb / 10P	DDR and SDRAM Buffer 2019

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