參數(shù)資料
型號: HM5264165FTT-A60
廠商: Hitachi,Ltd.
英文描述: 64M LVTTL interface SDRAM 133 MHz/100 MHz
中文描述: 6400 LVTTL接口SDRAM的133 MHz/100 MHz的
文件頁數(shù): 10/67頁
文件大小: 870K
代理商: HM5264165FTT-A60
HM5264165F/HM5264805F/HM5264405F-75/A60/B60
10
V
SS
and V
SS
Q (power supply pins):
Ground is connected. (V
SS
is for the internal circuit and V
SS
Q is for the
output buffer.)
Command Operation
Command Truth Table
The SDRAM recognizes the following commands specified by the
CS
,
RAS
,
CAS
,
WE
and address pins.
CKE
Command
Symbol
n - 1 n
CS
RAS CAS WE
A12/A13 A10
A0
to A11
Ignore command
DESL
H
×
×
×
×
×
×
×
×
×
×
H
×
×
×
×
×
×
×
×
×
×
×
×
No operation
NOP
H
L
H
H
H
Burst stop in full page
BST
H
L
H
H
L
Column address and read command
READ
H
L
H
L
H
V
L
V
Read with auto-precharge
READ A
H
L
H
L
H
V
H
V
Column address and write command
WRIT
H
L
H
L
L
V
L
V
Write with auto-precharge
WRIT A
H
L
H
L
L
V
H
V
Row address strobe and bank active
ACTV
H
L
L
H
H
V
V
V
Precharge select bank
PRE
H
L
L
H
L
V
L
×
×
×
Precharge all bank
PALL
H
L
L
H
L
×
×
H
Refresh
REF/SELF H
V
L
L
L
H
×
Mode register set
Note:
H: V
IH
. L: V
IL
.
×
: V
IH
or V
IL
. V: Valid address input
MRS
H
×
L
L
L
L
V
V
V
Ignore command [DESL]:
When this command is set (
CS
is High), the SDRAM ignore command input at
the clock. However, the internal status is held.
No operation [NOP]:
This command is not an execution command. However, the internal operations
continue.
Burst stop in full-page [BST]:
This command stops a full-page burst operation (burst length = full-page
(256; HM5264165F, 512; HM5264805F, 1024; HM5264405F)), and is illegal otherwise. When data
input/output is completed for a full page of data, it automatically returns to the start address, and input/output
is performed repeatedly.
相關(guān)PDF資料
PDF描述
HM5264805FTT-A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264405FTT-A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264165FTT-B60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264805FTT-B60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264405FTT-B60 64M LVTTL interface SDRAM 133 MHz/100 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HM5264165FTT-B60 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264165LTT-10 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SDRAM
HM5264165LTT-80 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SDRAM
HM5264165LTT-B60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SDRAM
HM5264165TT-10 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SDRAM