参数资料
型号: V58C2256324SAH-36
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 8M X 32 DDR DRAM, 0.55 ns, PBGA144
封装: ROHS COMPLIANT, BGA-144
文件页数: 17/37页
文件大小: 370K
代理商: V58C2256324SAH-36
24
V58C2256324SA Rev. 1.4 August 2007
ProMOS TECHNOLOGIES
V58C2256324SA
Command Table
Table Command Overview
Note: The Power Down Mode Entry command is illegal during Burst Read or Burst Write operations.
Operation
Code
CKE
n-1
CKE
n
CS#
RAS#
CAS#
WE#
BA0
BA1
A8
A0-7
A9-11
DESEL
H
X
H
XXXXXXX
H
X
L
H
XXXX
Mode Register Setup
MRS
H
X
L
LLL00
OPCODE
Extended Mode Register Setup
NOP
H
X
L
LLL10
OPCODE
Bank Activate
ACT
H
X
L
H
BA
Row Address
Read
READ
H
X
L
H
L
H
BA
L
Col.
Read with Auto Precharge
READA
H
X
L
H
L
H
BA
H
Col.
Write Command
WRITE
H
X
L
H
L
BA
L
Col.
Write Command with Auto Precharge WRITEA
H
X
L
H
L
BA
H
Col.
BST
H
X
L
H
L
XXXX
Precharge Single Bank
PRE
H
X
L
H
L
BA
L
X
Precharge All Banks
PREAL
H
X
L
H
L
X
H
X
H
L
H
XXXX
H
L
H
XXXX
Self Refresh Exit
Device Deselect
SREFEX
L
H
L
X
H
X
H
X
H
X
Power Down Mode Entry
PWDNEN
H
L
H
L
X
H
X
H
X
H
X
Power Down Mode Exit
PWDNEX
L
H
L
X
valid
X
valid
X
valid
XXXX
No operation
Burst Stop
Autorefresh
Self Refresh Entry
EMRS
REF
REFX
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