參數(shù)資料
型號(hào): MT46V64M8
廠商: Micron Technology, Inc.
英文描述: 16 Meg x 8 x 4 banks DDR SDRAM(16M x 8 x 4組,雙數(shù)據(jù)速率同步動(dòng)態(tài)RAM)
中文描述: 16梅格× 8 × 4銀行DDR SDRAM內(nèi)存(1,600 × 8 × 4組,雙數(shù)據(jù)速率同步動(dòng)態(tài)RAM)的
文件頁(yè)數(shù): 49/70頁(yè)
文件大小: 2524K
代理商: MT46V64M8
49
512Mb: x4, x8, x16 DDR SDRAM
512Mx4x8x16DDR_A.p65
Rev. A; Pub 10/00
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2000, Micron Technology, Inc.
512Mb: x4, x8, x16
DDR SDRAM
ADVANCE
DQS write preamble
DQS write preamble setup time
DQS write postamble
Write recovery time
Internal WRITE to READ command delay
Data valid output window (DVW)
REFRESH to REFRESH command interval
Average periodic refresh interval
Terminating voltage delay to V
DD
Exit SELF REFRESH to non-READ command
Exit SELF REFRESH to READ command
t
WPRE
t
WPRES
t
WPST
t
WR
t
WTR
na
t
REFC
t
REFI
t
VTD
t
XSNR
t
XSRD
0.25
0
0.4
15
1
t
QH -
t
DQSQ
0.25
0
0.4
15
1
t
QH -
t
DQSQ
0.25
0
0.4
15
1
t
QH -
t
DQSQ
t
CK
ns
t
CK
ns
t
CK
ns
μs
μs
ns
ns
t
CK
20, 21
19
0.6
0.6
0.6
25
23
23
70.3
7.8
70.3
7.8
70.3
7.8
0
75
200
0
75
200
0
80
200
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Notes: 1
5, 14-17, 33; notes appear on pages 50
53) (0
°
C
T
A
+70
°
C; V
DD
Q = +2.5V ±0.2V, V
DD
= +2.5V ±0.2V)
AC CHARACTERISTICS - Continued
PARAMETER
-7
-75
-8
SYMBOL
MIN
MAX
MIN
MAX
MIN
MAX
UNITS NOTES
SLEW RATE DERATING VALUES
(Note: 14; notes appear on pages 50
53) (0
°
C
T
A
+70
°
C; V
DD
Q = +2.5V ±0.2V, V
DD
= +2.5V ±0.2V)
ADDRESS / COMMAND
t
IS
1
1.05
1.10
1.15
1.1
1.15
1.20
1.25
SPEED
-7, -75
-7, -75
-7, -75
-7, -75
-8
-8
-8
-8
SLEW RATE
0.500V / ns
0.400V / ns
0.300V / ns
0.200V / ns
0.500V / ns
0.400V / ns
0.300V / ns
0.200V / ns
t
IH
1
1
1
1
1.1
1.1
1.1
1.1
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
SLEW RATE DERATING VALUES
(Note: 31; notes appear on pages 50
53) (0
°
C
T
A
+70
°
C; V
DD
Q = +2.5V ±0.2V, V
DD
= +2.5V ±0.2V)
Data, DM, DQS
t
DS
0.50
0.55
0.60
0.65
0.60
0.65
0.70
0.75
SPEED
-7, -75
-7, -75
-7, -75
-7, -75
-8
-8
-8
-8
SLEW RATE
0.500V / ns
0.400V / ns
0.300V / ns
0.200V / ns
0.500V / ns
0.400V / ns
0.300V / ns
0.200V / ns
t
DH
0.50
0.55
0.60
0.65
0.60
0.65
0.70
0.75
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
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