Datasheet > EM6AA160TSA

EM6AA160TSA

更新时间： 2022-12-28 03:30:51

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
54页	431K
描述
16M x 16 bit DDR Synchronous DRAM (SDRAM)

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EM6AA160TSA 数据手册

EtronTech

EM6AA160TSA

Mode Register Set (MRS)

The Mode Register stores the data for controlling various operating modes of a DDR SDRAM. It programs

Latency, Burst Type, and Burst Length to make the DDR SDRAM useful for a variety of applications. The

CAS

default value of the Mode Register is not defined; therefore the Mode Register must be written by the user.

Values stored in the register will be retained until the register is reprogrammed. The Mode Register is written by

asserting Low on

, BA1 and BA0 (the device should have all banks idle with no bursts in

CS RAS CAS WE

progress prior to writing into the mode register, and CKE should be High). The state of address pins A0~A12

and BA0, BA1 in the same cycle in which and are asserted Low is written into the Mode

CS RAS CAS

A0~A2, Burst Type uses A3, and

Latency (read latency from column address) uses A4~A6. A logic 0

CAS

should be programmed to all the undefined addresses to ensure future compatibility. Reserved states should

not be used to avoid unknown device operation or incompatibility with future versions. Refer to the table for

specific codes for various burst lengths, burst types and

latencies.

CAS

Table 4. Mode Register Bitmap

BA1 BA0 A12 A11 A10 A9

A0 Address Field

RFU must be set to “0”

T.M.

CAS Latency

Burst Length

Mode Register

A8 A7 Test Mode

A6 A5 A4 CAS Latency A3 Burst Type A2 A1 A0 Burst Length

0 Normal mode

Reserved

Sequential

Interleave

Reserved

DLL Reset

Test mode

BA0 Mode

Reserved

2.5

Reserved

MRS

EMRS

Reserved

Burst Length Field (A2~A0)

•

This field specifies the data length of column access using the A2~A0 pins and selects the Burst Length to be

2, 4, 8.

Table 5. Burst Length

Burst Length

Reserved

Etron Confidential

Rev. 1.2

May 2009

1...3 4 567 8 9...54

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与EM6AA160TSA相关器件

型号	品牌	获取价格	描述	数据表
EM6AA160TSA-4G	ETRON	获取价格	16M x 16 bit DDR Synchronous DRAM (SDRAM)
EM6AA160TSA-5G	ETRON	获取价格	16M x 16 bit DDR Synchronous DRAM (SDRAM)
EM6AA160TSC-4G	ETRON	获取价格	16M x 16 bit DDR Synchronous DRAM (SDRAM)
EM6AA160TSC-5G	ETRON	获取价格	16M x 16 bit DDR Synchronous DRAM (SDRAM)
EM6AA320	ETRON	获取价格	8M x 32 DDR SDRAM
EM6AA320BI-3.3MS	ETRON	获取价格	8M x 32 DDR SDRAM
EM6AA320BI-3.3S	ETRON	获取价格	8M x 32 DDR SDRAM
EM6AA320BI-3.6MS	ETRON	获取价格	8M x 32 DDR SDRAM
EM6AA320BI-3.6S	ETRON	获取价格	8M x 32 DDR SDRAM
EM6AA320BI-4MS/4MSG	ETRON	获取价格	8M x 32 DDR SDRAM

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