K4R271669B-NCK8 datasheet(4/20 Pages) SAMSUNG

Part #	K4R271669B-NCK8

Description	256K x 16/18 bit x 32s banks Direct RDRAMTM

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Manufacturer	SAMSUNG [Samsung semiconductor]

Direct Link	http://www.samsung.com/Products/Semiconductor

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Direct RDRAM™

Page 2

K4R271669B/K4R441869B

Version 1.11 Oct. 2000

Pinouts and Definitions

Center-Bonded Devices

These tables shows the pin assignments of the center-bonded

RDRAM package. The top table is for the normal package,

and bottom table is for the mirrored package. The mechan-

ical dimensions of this package are shown in a later section.

Refer to Section "Center-Bonded uBGA Package" on page

18.

Table 1-1: a. Center-Bonded Device (top view for normal package)

12

GND

VDD

GND

11

10

DQA7

DQA4

CFM

CFMN

RQ5

RQ3

DQB0

DQB4

DQB7

9

GND

VDD

GND

GNDa

VDD

GND

VDD

GND

8

CMD

DQA5

DQA2

VDDa

RQ6

RQ2

DQB1

DQB5

SIO1

7

6

5

SCK

DQA6

DQA1

VREF

RQ7

RQ1

DQB2

DQB6

SIO0

4

VCMOS

GND

VDD

GND

VDD

GND

VCMOS

3

DQA8*

DQA3

DQA0

CTMN

CTM

RQ4

RQ0

DQB3

DQB8*

2

1

GND

VDD

GND

A

B

C

D

E

F

G

H

J

Table 1-2: a. Center-Bonded Device (top view for mirrored package)

12

GND

VDD

GND

11

10

DQA8*

DQA3

DQA0

CTMN

CTM

RQ4

RQ0

DQB3

DQB8*

9

VCMOS

GND

VDD

GND

VDD

GND

VCMOS

8

SCK

DQA6

DQA1

VREF

RQ7

RQ1

DQB2

DQB6

SIO0

7

6

5

CMD

DQA5

DQA2

VDDa

RQ6

RQ2

DQB1

DQB5

SIO1

4

GND

VDD

GND

GNDa

VDD

GND

VDD

GND

3

DQA7

DQA4

CFM

CFMN

RQ5

RQ3

DQB0

DQB4

DQB7

2

1

GND

VDD

GND

A

B

C

D

E

F

G

H

J

For normal package, pin #1(ROW 1, COL A) is

located at the A1 position on the top side and the A1

position is marked by the marker “

•“.

For mirrored package, pin #1(ROW 1, COL A) is

located at the A1 postion on the top side and the A1

position is marked by the alphabet “M“.

Chip

Top View

* DQA8/DQB8 are just used for 144Mb RDRAM.

These two pins are NC(No Connection) in 128Mb

RDRAM.

b.

Top marking example of normal package

b. Top marking example of mirrored package

COL

ROW

COL

ROW

K4Rxxxx69B-Nxxx

SAMSUNG

050

M

K4Rxxxx69B-Mxxx

SAMSUNG

050

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