參數(shù)資料
型號(hào): HYB25D512800BE-5
廠商: INFINEON TECHNOLOGIES AG
英文描述: 512Mbit Double Data Rate SDRAM
中文描述: 512MB的雙倍數(shù)據(jù)速率SDRAM
文件頁(yè)數(shù): 69/90頁(yè)
文件大?。?/td> 3191K
代理商: HYB25D512800BE-5
t
RCD
or t
RASmin
10
Data Sheet
69
Rev. 1.2, 2004-06
HYB25D512[40/16/80]0B[E/F/C/T]
512Mbit Double Data Rate SDRAM
Normal Strength Pull-down and Pull-up Characteristics
Address and control input setup
time
t
IS
0.6
0.75
0.9
ns
fast slew
rate
3)4)5)6)10)
0.7
0.8
1.0
ns
slow slew
rate
3)4)5)6)10)
Address and control input hold
time
t
IH
0.6
0.75
0.9
ns
fast slew
rate
3)4)5)6)10)
0.7
0.8
1.0
1.1
ns
slow slew
rate
3)4)5)6)10)
Read preamble
Read postamble
Active to Precharge command
Active to Active/Auto-refresh
command period
Auto-refresh to Active/Auto-
refresh command period
Active to Read or Write delay
Precharge command period
Active to Autoprecharge delay
Active bank A to Active bank B
command
Write recovery time
Auto precharge write recovery +
precharge time
Internal write to read command
delay
Exit self-refresh to non-read
command
Exit self-refresh to read
command
Average Periodic Refresh
Interval
t
RPRE
t
RPST
t
RAS
t
RC
0.9
0.40
40
55
1.1
0.60
70E+3 42
0.9
0.40
1.1
0.60
70E+3 45
0.9
0.40
1.1
0.60
120E+3 ns
t
CK
t
CK
2)3)4)5)
2)3)4)5)
2)3)4)5)
60
65
ns
2)3)4)5)
t
RFC
70
72
75
ns
2)3)4)5)
t
RCD
t
RP
t
RAP
t
RRD
15
15
18
18
20
20
ns
ns
ns
ns
2)3)4)5)
2)3)4)5)
2)3)4)5)
12
15
2)3)4)5)
t
WR
t
DAL
15
15
15
ns
t
CK
2)3)4)5)
2)3)4)5)11)
t
WTR
2
1
1
t
CK
2)3)4)5)
t
XSNR
75
75
75
ns
2)3)4)5)
t
XSRD
200
200
200
t
CK
2)3)4)5)
t
REFI
7.8
7.8
7.8
μ
s
2)3)4)5)12)
1) 0
°
C
T
A
70
°
C
; V
DDQ
= 2.5 V
±
0.2 V,
V
DD
= +2.5 V
±
0.2 V (DDR333);
V
DDQ
= 2.6 V
±
0.1 V,
V
DD
= +2.6 V
±
0.1 V
(DDR400)
2) Input slew rate
1 V/ns for DDR400, DDR333
3) The CK/CK input reference level (for timing reference to CK/CK) is the point at which CK and CK cross: the input reference
level for signals other than CK/CK, is
V
REF
. CK/CK slew rate are
1.0 V/ns.
4) Inputs are not recognized as valid until
V
REF
stabilizes.
5) The Output timing reference level, as measured at the timing reference point indicated in AC Characteristics (note 3) is
V
TT
.
6) These parameters guarantee device timing, but they are not necessarily tested on each device.
AC Timing - Absolute Specifications for PC3200, PC2700 and PC2100
Parameter
Symbol –5
–6
DDR333
Min.
–7
DDR266A
Min.
Unit
Note/ Test
Condition
1)
DDR400B
Min.
Max.
Max.
Max.
相關(guān)PDF資料
PDF描述
HYB25D512160BE-5 512Mbit Double Data Rate SDRAM
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HYB25D512800BE-6 512Mbit Double Data Rate SDRAM
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