参数资料
型号: MT48LC4M16A2
厂商: Micron Technology, Inc.
英文描述: SYNCHRONOUS DRAM
中文描述: 同步DRAM
文件页数: 39/55页
文件大小: 1458K
代理商: MT48LC4M16A2
39
64Mb: x4, x8, x16 SDRAM
64MSDRAM_F.p65 – Rev. F; Pub. 1/03
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2003, Micron Technology, Inc.
64Mb: x4, x8, x16
SDRAM
AUTO REFRESH MODE
tCH
tCL
tCK
CKE
CLK
DQ
tRFC
1
()()
(
)(
)(
)
(
)
tRP
()()
(
)(
)(
)
(
)
()()
COMMAND
tCMH
tCMS
NOP
NOP
(
)(
)(
)
(
)
BANK
ACTIVE
AUTO
REFRESH
(
)(
)(
)
(
)
NOP
NOP
PRECHARGE
Precharge all
active banks
AUTO
REFRESH
tRFC
1
High-Z
BA0, BA1
BANK(S)
(
)(
)(
)
(
)
(
)(
)(
)
(
)
tAH
tAS
tCKH
tCKS
()()
NOP
(
)(
)(
)
(
)
(
)(
)(
)
(
)
DQM /
DQML, DQMH
A0-A9, A11
ROW
(
)
(
)
(
)
(
)
ALL BANKS
SINGLE BANK
A10
ROW
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
T0
T1
T2
Tn + 1
To + 1
DON’T CARE
TIMING PARAMETERS
-6
-7E
-75
-8E
SYMBOL*
t
AH
t
AS
t
CH
t
CL
t
CK(3)
t
CK(2)
MIN MAX MIN MAX MIN MAX MIN MAX
1
0.8
1.5
1.5
2.5
2.5
2.5
2.5
6
7
7.5
UNITS
ns
ns
ns
ns
ns
ns
0.8
1.5
2.5
2.5
7.5
10
1
2
3
3
8
10
*CAS latency indicated in parentheses.
t
CKH
t
CKS
t
CMH
t
CMS
t
RFC
t
RP
1
0.8
1.5
0.8
1.5
66
15
0.8
1.5
0.8
1.5
66
20
1
2
1
2
70
20
ns
ns
ns
ns
ns
ns
1.5
1
1.5
60
18
-6
-7E
-75
-8E
SYMBOL*
MIN MAX MIN MAX MIN MAX MIN MAX
UNITS
NOTE
:
1. Each AUTO REFRESH command performs a refresh cycle. Back-to-back commands are not required.
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