MT46V4M32 datasheet(6/66 Pages) MICRON

Part #	MT46V4M32

Description	DOUBLE DATA RATE DDR SDRAM

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Manufacturer	MICRON [Micron Technology]

Direct Link	http://www.micron.com

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6

128Mb: x32 DDR SDRAM

Micron Technology, Inc., reserves the right to change products or specifications without notice.

4M32DDR_B.p65 – Rev. B, Pub. 7/02

128Mb: x32

DDR SDRAM

ADVANCE

38, 39, 40, 41, 42, 43, 44

NC

–

No Connect: These pins should be left unconnected.

87, 88, 90

91

DNU

–

Do Not Use: Must float to minimize noise.

93

NC/RFU

Reserved for Future Use

52

NC (MCL)

No Connect: Not internally connected. Must Connect LOW (for

compatibility with SGRAM devices).

2, 8, 14, 22, 59, 67, 73,

VDDQ

Supply

DQ Power Supply: +2.5V ±0.125V. Isolated on the die for

79, 86, 95

improved noise immunity. 1.8V option

5, 11, 19, 62, 70, 76,

VSSQ

Supply

DQ Ground. Isolated on the die for improved noise immunity.

82, 92, 99

15, 35, 65, 96

VDD

Supply

Power Supply: +2.5V ±0.125V.

16, 46, 66, 85

VSS

Supply

Ground.

58

VREF

Supply

SSTL_2 reference voltage.

PIN DESCRIPTIONS (continued)

TQFP PIN NUMBERS

SYMBOL

TYPE

DESCRIPTION

NOTE: 1. NC pins not listed may also be reserved for other uses now or in the future. This table simply defines specific NC pins

deemed to be of importance.

FBGA BALLOUT

DQS0

DM0

VSSQ

DQ21

DQ10

VDDQ

DQ15

DQ16

VSS

DQ26

VDD

VDDQ

DQ4

DQ3

VSSQ

DM2

DM1

DQS2

DQS1

DQ22

DQ8

VSSQ

NC

VDDQ

DQ1

DQ6

DQ2

A2

DQ0

VDDQ

CS#

VDDQ

DQ31

VDDQ DQ30

VSSQ

DQ29

DSF/MCL

DQ24

DQ7

VSSQ

DQ28

VSSQ

DM3

DQS3

DQ27

DQ5

NC

VSSQVDD

123456789

10

11

12

VSSQVSSQ

DQ25

A

B

C

D

E

F

G

H

J

K

L

M

VDDQVDD

VDDQ

VSS

VSSQVSS

VSS

A11

A3

A4

A9

A5

CK#

VDD

CKE

VDD

VSS

VSSQ

VSSQVSS

VSSQ

RFU

CAS#

VDDQ

VDD

DQ17

VSSQ

DQ14

VDDQ

RAS#

DQ19

DQ18 VDDQ

VSSQ

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VSS/

θ1

VDDQ

NC

DQ20

DQ23

WE#

NC

VDDQ

VDD

NC

BA0

VSSQVSS

BA1

A0

VSS

VSSQ

DQ13

DQ12

NC

VDDQ DQ11

VDDQ

DQ9

VREF

A1

A6

A7

A8/AP

NC

CK

VSS

RFU

VDD

A10

3

2

NOTE: 1. This package uses 4 DQS lines

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