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: 37/55页
文件大小: 1458K
代理商: MT48LC4M16A2
37
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
NOTE:
1. Violating refresh requirements during power-down may result in a loss of data.
POWER-DOWN MODE
1
tCH
tCL
tCK
Two clock cycles
CKE
CLK
DQ
All banks idle, enter
power-down mode
Precharge all
active banks
Input buffers gated off while in
power-down mode
Exit power-down mode
(
)
(
)
(
)
(
)
DON’T CARE
tCKS
tCKS
COMMAND
tCMH
tCMS
PRECHARGE
NOP
NOP
ACTIVE
NOP
(
)
(
)
(
)
(
)
All banks idle
BA0, BA1
BANK
BANK(S)
(
)
(
)
(
)
(
)
High-Z
tAH
tAS
tCKH
tCKS
DQM /
DQML, DQMH
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
A0-A9, A11
ROW
(
)
(
)
(
)
(
)
ALL BANKS
SINGLE BANK
A10
ROW
(
)
(
)
(
)
(
)
T0
T1
T2
Tn + 1
Tn + 2
t
CK(2)
t
CKH
t
CKS
t
CMH
t
CMS
1
7.5
0.8
1.5
0.8
1.5
10
0.8
1.5
0.8
1.5
10
1
2
1
2
ns
ns
ns
ns
ns
1.5
1
1.5
TIMING PARAMETERS
-6
-7E
-75
-8E
SYMBOL*
t
AH
t
AS
t
CH
t
CL
t
CK(3)
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
UNITS
ns
ns
ns
ns
ns
0.8
1.5
2.5
2.5
7.5
1
2
3
3
8
*CAS latency indicated in parentheses.
-6
-7E
-75
-8E
SYMBOL*
MIN MAX MIN MAX MIN MAX MIN MAX
UNITS
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