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| 型號： | MT48LC1M16A1S |
| 廠商： | Micron Technology, Inc. |
| 英文描述： | SYNCHRONOUS DRAM |
| 中文描述： | 同步DRAM |
| 文件頁數(shù)： | 22/51頁 |
| 文件大?。?/td> | 1480K |
| 代理商： | MT48LC1M16A1S |
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16Mb: x16 SDRAM
16MSDRAMx16.p65
–
Rev. 8/99
Micron Technology, Inc., reserves the right to change products or specifications without notice.
1999, Micron Technology, Inc.
22
16Mb: x16
SDRAM
DQ
COMMAND
ADDRESS
WRITE
BANK,
COL
n
D
IN
n
NOP
NOP
CLK
T2
T1
T4
T3
T5
T0
CKE
INTERNAL
CLOCK
NOP
D
IN
n
+ 1
D
IN
n
+ 2
NOTE:
For this example, burst length = 4 or greater, and DQM
is LOW.
Figure 22
Clock Suspend During WRITE Burst
DON
’
T CARE
CLK
DQ
D
OUT
n
T2
T1
T4
T3
T6
T5
T0
COMMAND
ADDRESS
READ
NOP
NOP
NOP
BANK,
COL
n
NOP
D
OUT
n
+ 1
D
OUT
n
+ 2
D
OUT
n
+ 3
NOTE:
For this example, CAS latency = 2, burst length = 4 or greater, and
DQM is LOW.
CKE
INTERNAL
CLOCK
NOP
Figure 23
Clock Suspend During READ Burst
CLOCK SUSPEND
The clock suspend mode occurs when a column
access/burst is in progress and CKE is registered LOW. In
the clock suspend mode, the internal clock is deacti-
vated, “freezing” the synchronous logic.
For each positive clock edge on which CKE is sampled
LOW, the next internal positive clock edge is sus-
pended. Any command or data present on the input
pins at the time of a suspended internal clock edge are
ignored; any data present on the DQ pins will remain
driven; and burst counters are not incremented as long
as the clock is suspended (see examples in Figures 22
and 23).
Clock suspend mode is exited by registering CKE
HIGH; the internal clock and related operation will
resume on the subsequent positive clock edge.
BURST READ/SINGLE WRITE
The burst read/single write mode is entered by pro-
gramming the write burst mode bit (M9) in the Mode
Register to a logic 1. In this mode, all WRITE com-
mands result in the access of a single column location
(burst of one) regardless of the programmed burst
length. READ commands access columns according to
the programmed burst length and sequence, just as in
the normal mode of operation (M9 = 0).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT48LC1M16A1-TG | 制造商:Micron Technology Inc 功能描述: |
| MT48LC1M16A1TG6SE | 制造商:MICRON 功能描述:New |
| MT48LC1M16A1TG-6SE | 制造商:Micron Technology Inc 功能描述:IC,SDRAM,2X512KX16,CMOS,TSOP,50PIN,PLASTIC |
| MT48LC1M16A1TG-7S | 制造商:Mitel Networks Corporation 功能描述:SDRAM, 1M x 16, 50 Pin, Plastic, TSOP |
| MT48LC1M16A1TG-7SE | 制造商:Micron Technology Inc 功能描述:SDRAM, 1M x 16, 50 Pin, Plastic, TSOP |
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