97SD3232RPME Datasheet

PDF预览

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39

1 Gb (8-Meg X 32-Bit X 4-Banks) SDRAM

DQM Truth Table

C

OMMAND

Byte (DQ0 to DQ31) write enable/output

enable

Byte (DQ0 to DQ31) write inhibit/output dis-

able

S

YMBOL

ENB

MASK

CKE =

N

-1

H

H

CKE =

N

x

x

97SD3232

DQM

L

H

Note: H: V

IH

L: V

IL

x V

IH

or V

IL

Write: I

DID

is Needed

Read: I

DOD

is Needed

The SDRAM can mask input/output data by means of DQM.

During reading, the output buffer is set to Low-Z by setting DQM to Low, enabling data output. On the other

hand, when DQM is set High, the output buffer becomes High-Z, disabling data output.

Memory

During writing, data is written by setting DQM to Low. When DQM is set to High, the previous data is held

( the new data is not written). Desired data can be masked during burst read or burst write by setting DQM..

For more details, refer to the DQM control section of the SDRAM operating instructions.

CKE Truth Table

C

URRENT

S

TATE

Active

Any

Clock Suspend

Idle

Idle

Idle

Power down entry

Self Refresh

Power down

Power down exit

Self Refresh exit (SELFX)

C

OMMAND

Clock suspended mode entry

Clock Suspend

Clock Suspend mode exit

Auto-refresh command (REF)

Self-refresh entry (SELF)

N

-1

N

CS

x

x

x

L

L

L

HL

L

L

H

RAS

x

x

x

L

L

H

x

H

H

x

CAS

x

x

x

L

L

H

x

H

H

x

WE

x

x

x

H

H

H

x

H

H

x

A

DDRESS

x

x

x

x

x

x

x

x

x

x

H

L

L

H

H

H

H

L

L

L

L

L

H

H

L

L

L

H

H

H

Note: H:V

IH

L:V

IL

x V

IH

or V

IL

01.11.05 Rev 2

All data sheets are subject to change without notice

10

漏2005 Maxwell Technologies

All rights reserved.

prev next

97SD3232RPME相关型号PDF文件下载

• 型号
  版本
  描述
  厂商
  下载
• 97SD3232
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL
  97SD3232
• 97SD3232
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL [M...
  97SD3232
• 97SD3240
  英文版
  1.25Gb SDRAM 8-Meg X 40-Bit X 4-Banks
  MAXWELL
  97SD3240
• 97SD3240
  英文版
  1.25Gb SDRAM 8-Meg X 40-Bit X 4-Banks
  MAXWELL [M...
  97SD3240
• 97SD3248
  英文版
  1.5Gb SDRAM 8-Meg X 48-Bit X 4-Banks
  MAXWELL
  97SD3248
• 97SD3248
  英文版
  1.5Gb SDRAM 8-Meg X 48-Bit X 4-Banks
  MAXWELL [M...
  97SD3248
• 97SD3240_0...
  英文版
  1.25Gb SDRAM 8-Meg X 40-Bit X 4-Banks
  MAXWELL [M...
  97SD3240_06
• 97SD3248_0...
  英文版
  1.5Gb SDRAM 8-Meg X 48-Bit X 4-Banks
  MAXWELL [M...
  97SD3248_06
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL
  97SD3232RPME
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL [M...
  97SD3232RPME
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL
  97SD3232RPMH
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL [M...
  97SD3232RPMH
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL
  97SD3232RPMI
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL [M...
  97SD3232RPMI
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL
  97SD3232RPMK
• 97SD3232RP...
  英文版
  1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
  MAXWELL [M...
  97SD3232RPMK
• 97SD3232RP...
  英文版
  暂无描述
  MAXWELL
  97SD3232RPQI
• 97SD3240RP...
  英文版
  Synchronous DRAM, 32MX40, 6ns, CMOS, STACK, QFP-132
  MAXWELL
  97SD3240RPMH
• 97SD3240RP...
  英文版
  Synchronous DRAM, 32MX40, 6ns, CMOS, STACK, QFP-132
  MAXWELL
  97SD3240RPMK
• 97SD3240RP...
  英文版
  1.25Gb SDRAM 8-Meg X 40-Bit X 4-Banks
  MAXWELL
  97SD3240RPQE

您可能感兴趣的PDF文件资料

• 97SD3240
• 97SD3240
• 97SD3232RPQI
• 97SD3232RPMK
• 97SD3232RPMK
• 97SD3232RPMI
• 97SD3232RPMI
• 97SD3232RPMH
• 97SD3232RPMH
• 97SD3232RPME
• 97SD3232RPME
• 97SD3232

热门IC型号推荐

• 9014M-C
• 93LC46B-I/SN
• 93LC66B-I/SN
• 93LC46B/SN
• 93LC46BT-I/SN
• 93LC46B-I/P
• 93LC66BT-I/SN