參數(shù)資料
型號(hào): HYB25D128400CT-5
廠商: QIMONDA AG
元件分類: DRAM
英文描述: 32M X 4 DDR DRAM, 0.7 ns, PDSO66
封裝: PLASTIC, TSOP2-66
文件頁(yè)數(shù): 26/44頁(yè)
文件大小: 2618K
代理商: HYB25D128400CT-5
HYB25D128[40/80/16]0C[C/E/F/T]
128-Mbit Double-Data-Rate SDRAM
Internet Data Sheet
Rev. 1.70, 2008-04
32
03292006-U5AN-6TI1
Address and control input setup
time
t
IS
0.6
0.75
ns
fast slew rate
0.7
0.8
ns
slow slew
Data-out low-impedance time
from CK/CK
t
LZ
–0.7
+0.7
–0.7
+0.7
ns
Mode register set command
cycle time
t
MRD
2—
2
t
CK
DQ/DQS output hold time from
DQS
t
QH
t
HP tQHS
t
HP tQHS
—ns
Data hold skew factor
t
QHS
+0.50
+0.55
ns
Data hold skew factor
t
QHS
+0.50
+0.50
ns
TFBGA
Active to Autoprecharge delay
t
RAP
t
RCD
t
RCD
—ns
Active to Precharge command
t
RAS
40
70E+3
42
70E+3
ns
Active to Active/Auto-refresh
command period
t
RC
55
60
ns
Active to Read or Write delay
t
RCD
15
18
ns
Average Periodic Refresh
Interval
t
REFI
15.6
15.6
μs
Auto-refresh to Active/Auto-
refresh command period
t
RFC
68
72
ns
Precharge command period
t
RP
15
18
ns
Read preamble
t
RPRE
0.9
1.1
0.9
1.1
t
CK
Read postamble
t
RPST
0.40
0.60
0.40
0.60
t
CK
Active bank A to Active bank B
command
t
RRD
10
12
ns
Write preamble
t
WPRE
Max. (0.25
×
t
CK, 1.5 ns)
Max. (0.25
× t
CK, 1.5
ns)
—ns
Write preamble setup time
t
WPRES
0—
0
ns
Write postamble
t
WPST
0.40
0.60
0.40
0.60
t
CK
Write recovery time
t
WR
15
15
ns
Internal write to read command
delay
t
WTR
2—
1
t
CK
Exit self-refresh to non-read
command
t
XSNR
75
75
ns
Exit self-refresh to read
command
t
XSRD
200
200
t
CK
Parameter
Symbol
–5
–6
Unit
Note/ Test
Condition 1)
DDR400B
DDR333B
Min.
Max.
Min.
Max.
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