參數(shù)資料
型號(hào): MT46V4M16
廠商: Micron Technology, Inc.
英文描述: 1 Meg x 16 x 4 banks DDR SDRAM(1M x 16 x 4組,雙數(shù)據(jù)速率同步動(dòng)態(tài)RAM)
中文描述: 1梅格× 16 × 4銀行DDR SDRAM內(nèi)存(100萬(wàn)× 16 × 4組,雙數(shù)據(jù)速率同步動(dòng)態(tài)RAM)的
文件頁(yè)數(shù): 63/69頁(yè)
文件大?。?/td> 2369K
代理商: MT46V4M16
63
64Mb: x4, x8, x16 DDR SDRAM
64Mx4x8x16DDR_B.p65
Rev. B; Pub. 10/00
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2000, Micron Technology, Inc.
64Mb: x4, x8, x16
DDR SDRAM
SELF REFRESH MODE
CK
1
CK#
COMMAND
4
NOP
AR
ADDR
CKE
1
VALID
DQ
DM
DQS
VALID
NOP
NOTE
: 1. Clock must be stable before exiting self refresh mode. That is, the clock must be cycling within
specifications by Ta0.
2. Device must be in the all banks idle state prior to entering self refresh mode.
3.
t
XSNR is required before any non-READ command can be applied, and
t
XSRD (200 cycles of CK)
is required before a READ command can be applied.
4. AR = AUTO REFRESH command.
t
RP
2
t
CH
t
IH
t
CL
tCK
t
IS
tXSNR/
tXSRD
3
t
IS
t
IH
t
IS
tIS
tIH
tIS
Enter Self Refresh Mode
Exit Self Refresh Mode
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T0
T1
Ta0
1
Tb0
Ta1
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DON
T CARE
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TIMING PARAMETERS
-7
-75
-8
SYMBOL
t
CH
t
CL
t
CK (2.5)
t
CK (2)
t
IH
MIN
0.45
0.45
7
7.5
1
MAX
0.55
0.55
12
12
MIN
0.45
0.45
7.5
10
1
MAX
0.55
0.55
12
12
MIN
0.45
0.45
8
10
1.1
MAX
0.55
0.55
12
12
UNITS
t
CK
t
CK
ns
ns
ns
-7
-75
-8
SYMBOL
t
IS
t
RP
t
XSNR
t
XSRD
MIN
1
15
75
200
MAX
MIN
1
20
75
200
MAX
MIN
1.1
20
80
200
MAX
UNITS
ns
ns
ns
t
CK
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