參數(shù)資料
型號: MT47H128M8HV-187ELIT:E
元件分類: DRAM
英文描述: 128M X 8 DDR DRAM, 0.35 ns, PBGA60
封裝: 8 X 11.50 MM, FBGA-60
文件頁數(shù): 63/133頁
文件大?。?/td> 9170K
Table 11: AC Operating Specifications and Conditions (Continued)
Not all speed grades listed may be supported for this device; refer to the title page for speeds supported; Notes: 1–5 apply to the entire table;
VDDQ = +1.8V ±0.1V, VDD = +1.8V ±0.1V
AC Characteristics
-187E
-25E
-25
-3E
-3
-37E
-5E
Units Notes
Parameter
Symbol
Min
Max
Min Max Min Max Min Max Min Max Min Max Min Max
Command
and
Address
Input setup time
tISb
125
175
175
200
200
250
350
ps
Input hold time
tIHb
200
250
250
275
275
375
475
ps
Input setup time
tISa
325
375
375
400
400
500
600
ps
Input hold time
tIHa
325
375
375
400
400
500
600
ps
Input pulse width
tIPW
0.6
0.6
0.6
0.6
0.6
0.6
0.6
tCK
ACTIVATE-to-
ACTIVATE delay,
same bank
tRC
54
55
55
54
55
55
55
ns
ACTIVATE-to-READ
or WRITE delay
tRCD
13.125
12.5
15
12
15
15
15
ns
ACTIVATE-to-
PRECHARGE delay
tRAS
40
70K
40
70K
40
70K
40
70K
40
70K
40
70K
40
70K
ns
PRECHARGE period
tRP
13.125
12.5
15
12
15
15
15
ns
PRE-
CHARGE
ALL period
<1Gb
tRPA
13.125
12.5
15
12
15
15
15
ns
≥1Gb
tRPA
15
15
17.5
15
18
18.75
20
ns
ACTIVATE
-to-
ACTIVATE
delay
different
bank
x4, x8
tRRD
7.5
7.5
7.5
7.5
7.5
7.5
7.5
ns
x16
tRRD
10
10
10
10
10
10
10
ns
4-bank
activate
period
(
≥1Gb)
x4, x8
tFAW
35
35
35
37.5
37.5
37.5
37.5
ns
x16
tFAW
45
45
45
50
50
50
50
ns
1Gb:
x4,
x8,
x16
DDR2
SDRAM
AC
Timing
Operating
Specifications
PDF:
09005aef821ae8bf
1GbDDR2.pdf
Rev.
S
10/09
EN
35
Micron
Technology,
Inc.
reserves
the
right
to
change
products
or
specifications
without
notice.
2004
Micron
Technology,
Inc.
All
rights
reserved.
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