Datasheet > EM6A9320BIB-4IH

EM6A9320BIB-4IH

更新时间： 2022-02-26 13:08:28

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
61页	502K
描述
4M x 32 bit DDR Synchronous DRAM (SDRAM)

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EM6A9320BIB-4IH 数据手册

EM6A9320BIB

EtronTech

Operation Mode

Table 4 shows the truth table for the operation commands.

Table 4. Truth Table (Note (1), (2))

Command

BankActivate

State

Idle⁽³⁾

CKEn-1 CKEn DM BA1 BA0 A8 A11-A9, A7-0

CS RAS CAS

Row Address

BankPrecharge

Precharge All

Any

Write

Active⁽³⁾

Idle

Column

Address

A0~A7

Write and AutoPrecharge

Read

Read and Autoprecharge

Mode Register Set

Extended Mode Register Set

No-Operation

OP code

Idle

Any

Device Deselect

Burst Stop

Any

Active⁽⁴⁾

AutoRefresh

Idle

SelfRefresh Entry

Idle

(Self Refresh)

SelfRefresh Exit

Power Down Mode Entry

Idle/Active⁽⁵⁾

Any

(Power Down)

Active

Power Down Mode Exit

Data Mask Enable⁽⁶⁾

Data Mask Disable

Active

Note: 1. V = Valid data, X = Don't Care, L = Low level, H = High level

2. CKE_nsignal is input level when commands are provided.

CKE_n-1signal is input level one clock cycle before the commands are provided.

3. These are states of bank designated by BA0, BA1signals.

4. Read burst stop with BST command for all burst types.

5. Power Down Mode can not enter in the burst operation.

When this command is asserted in the burst cycle, device state is clock suspend mode.

6. DM0 – DM3 can be enabled respectively.

Etron Confidential

Rev 1.0

July /2012

1...3 4 567 8 9...61

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