參數(shù)資料
型號: MT48LC4M32B2
廠商: Micron Technology, Inc.
英文描述: SYNCHRONOUS DRAM
中文描述: 同步DRAM
文件頁數(shù): 46/52頁
文件大?。?/td> 1281K
代理商: MT48LC4M32B2
46
128Mb: x32 SDRAM
128MbSDRAMx32_D.p65 – Rev. D; Pub. 6/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2002, Micron Technology, Inc.
128Mb: x32
SDRAM
SINGLE WRITE
TIMING PARAMETERS
-6
-7
SYMBOL*
t
AH
t
AS
t
CH
t
CL
t
CK (3)
t
CK (2)
t
CK (1)
t
CKH
t
CKS
MIN
1
1.5
2.5
2.5
6
10
20
1
1.5
MAX
MIN
1
2
2.75
2.75
7
10
20
1
2
MAX
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
CMH
t
CMS
t
DH
t
DS
t
RAS
t
RC
t
RCD
t
RP
t
WR
1
1
2
1
2
ns
ns
ns
ns
ns
ns
ns
ns
ns
1.5
1
1.5
42
60
18
18
12
120,000
42
70
20
20
14
120,000
*CAS latency indicated in parentheses.
DON’T CARE
DISABLE AUTO PRECHARGE
ALL BANKS
tCH
tCL
tCK
tRP
tRAS
tRC
tRCD
DQM /
DQML, DQMH
CKE
CLK
A0-A9, A11
DQ
BA0, BA1
A10
tCMH
tCMS
tAH
tAS
ROW
ROW
BANK
BANK
BANK
ROW
ROW
BANK
tWR
D
IN
m
tDH
tDS
COMMAND
tCMH
tCMS
ACTIVE
NOP
WRITE
NOP
PRECHARGE
ACTIVE
tAH
tAS
tAH
tAS
SINGLE BANK
tCKH
tCKS
COLUMN
m
3
2
T0
T1
T2
T4
T3
T5
T6
NOP
-6
-7
SYMBOL*
MIN
MAX
MIN
MAX
UNITS
NOTE:
1. For this example, the burst length = 1, and the WRITE burst is followed by a “manual” PRECHARGE.
2.
3. A8, A9, and A11 = “Don’t Care.”
t
WR is required between <D
IN
m
> and the PRECHARGE command, regardless of frequency.
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