Datasheet > EM68B16CWQH-18H

EM68B16CWQH-18H

更新时间： 2022-02-26 12:34:35

品牌	Logo	应用领域
钰创 - ETRON		动态存储器双倍数据速率
页数	文件大小	规格书
60页	1029K
描述
32M x 16 bit DDRII Synchronous DRAM (SDRAM)

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中文翻译

获取价格

数据手册

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EM68B16CWQH-18H 数据手册

EM68B16CWQH

EtronTech

Figure 39. Read with autoprecharge to power-down entry

Tx+1

Tx+2

Tx+3

Tx+4

Tx+5

Tx+6

Tx+7

Tx+8

Tx+9

CK#

CMD

CKE

RDA

PRE

CKE should be kept HIGH until the end of burst operation

BL=4

AL+BL/2 with t_RTP= 7.5ns

& t_RASmin satisfied

AL+CL

t_IS

DQS

DQS#

Tx+1

Tx+2

PRE

Tx+3

Tx+4

Tx+5

Tx+6

Tx+7

Tx+8

Tx+9

CK#

Start internal precharge

CMD

CKE

CKE should be kept HIGH until the end of burst operation

BL=8

AL+BL/2 with t_RTP= 7.5ns

& t_RASmin satisfied

AL+CL

t_IS

DQS

DQS#

Figure 40. Write to power-down entry

Tm+1

Tm+2

Tm+3

Tx+1

Tx+2

Ty+1

Ty+2

Ty+3

CK#

CMD

CKE

BL=4

t_IS

t_WTR

DQS

DQS#

Tm+1

Tm+2

Tm+3

Tm+4

Tm+5

Tx+1

Tx+2

Tx+3

Tx+4

CK#

CMD

CKE

BL=8

t_IS

t_WTR

DQS

DQS#

Rev. 1.6

Oct. /2015

1...54 55 565758 59 60

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