AS4C32M16D2 datasheet(7/70 Pages) ALSC

7 / 70 page

AS4C32M16D2

Alliance Memory Inc. 551 Taylor Way, San Carlos, CA 94070

TEL: (650) 610-6800

FAX: (650) 620-9211

Alliance Memory Inc. reserves the right to change products or specification without notice.

Rev. 1.1

Feb. /2013

Operation Mode

Table 4 shows the truth table for the operation commands.

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

Command

State

CKEn-1

CKEn DM

BA0,1

A10 A0-9, 11-12

CS#

RAS#

CAS#

WE#

BankActivate

Idle(3)

Row address

Single Bank Precharge

Any

All Banks Precharge

Any

Write

Active(3)

Column

address

(A0 – A9)

Write with AutoPrecharge

Active(3)

Read

Active(3)

Column

address

(A0 – A9)

Read and Autoprecharge

Active(3)

Extended Mode Register Set

Idle

OP code

No-Operation

Any

Burst Stop

Active(4)

Device Deselect

Any

Refresh

Idle

SelfRefresh Entry

Idle

SelfRefresh Exit

Idle

Power Down Mode Entry

Idle

Power Down Mode Exit

Any

Data Input Mask Disable

Active

Data Input Mask Enable(5)

Active

NOTE 1:

V=Valid data, X=Don't Care, L=Low level, H=High level

NOTE 2:

CKEn signal is input level when commands are provided.

NOTE 3:

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

NOTE 4:

These are states of bank designated by BA signal.

NOTE 5:

Device state is 4, and 8 burst operation.

NOTE 6:

LDM and UDM can be enabled respectively.

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