ICS83841BH datasheet(1/8 Pages) ICST

Part #	ICS83841BH

Description	20 BIT, DDR SDRAM 2:1 MUX

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Manufacturer	ICST [Integrated Circuit Systems]

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83841BH

www.icst.com/products/hiperclocks.html

REV. A JANUARY 20, 2006

1

Integrated

Circuit

Systems, Inc.

ICS83841

20 BIT, DDR SDRAM 2:1 MUX

GENERAL DESCRIPTION

The ICS83841 is a 20 Bit, DDR SDRAM 2:1 MUX

and is a member of the HiPerClockS™ family of

High Performance Clock Solutions from ICS. The

device has 20 host lines and each host line can

be passed to 2 data ports. The host/data ports

are compatible with single-ended SSTL-2 and the device op-

erates from a 2.5V supply.

Guaranteed low output skew makes the ICS83841 ideal for

demanding applications which require well defined performance

and repeatability.

LOGIC DIAGRAM

FEATURES

• Forty low skew single-ended DIMM ports

• One SSTL-2 compatible select input

• Maximum Switching Speed: 3ns

• Output skew: 180ps (maximum)

• r

on = 20

Ω (typical)

• Full 2.5V supply modes

• 0°C to 70°C ambient operating temperature

• Available in both standard and lead-free RoHS compliant

packages

HiPerClockS™

ICS

SIMPLIFIED SCHEMATIC

DHx

S

DAx or DBx

RPD

SW

DH0

DA0

DB0

DH19

Sw

DA19

DB19

Sw

S

ron

ICS83841

72-Ball TFBGA

6mm x 6mm x 1.2mm

package body

H Package

Top View

PIN ASSIGNMENT

B

D

7

1

A

D

7

1

B

D

6

1

B

D

5

1

A

D

5

1

B

D

4

1

A

D

4

1

A

D

3

1

B

D

2

1

A

D

2

1

A

D

8

1

H

D

7

1

H

D

6

1

A

D

6

1

H

D

5

1

H

D

4

1

B

D

3

1

H

D

3

1

H

D

2

1

B

D

1

B

D

8

1

H

D

8

1

D

N

GD

N

GH

D

1

A

D

1

A

D

9

1

D

N

GD

N

GB

D

0

1

B

D

9

1

H

D

9

1

SV

D

H

D

0

1

A

D

0

1

A

D

0

H

D

0

V

D

V

D

H

D

9

B

D

9

B

D

0

D

N

GD

N

GA

D

9

A

D

1

H

D

1

D

N

GD

N

GH

D

8

B

D

8

B

D

1

H

D

2

H

D

3

B

D

3

H

D

4

H

D

5

A

D

6

H

D

6

H

D

7

A

D

8

A

D

2

B

D

2

A

D

3

A

D

4

B

D

4

A

D

5

B

D

5

B

D

6

A

D

7

B

D

7

1

2

34

5

6

789

10

A

B

C

D

E

F

G

H

J

K

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