參數(shù)資料
型號(hào)： HYS72T32000HR-3-A
廠商： QIMONDA AG
元件分類： DRAM
英文描述： 240-Pin Registered DDR2 SDRAM Modules
中文描述： 32M X 72 DDR DRAM MODULE, 0.45 ns, DMA240
封裝： GREEN, DIMM-240
文件頁(yè)數(shù)： 17/67頁(yè)
文件大小： 1462K
代理商： HYS72T32000HR-3-A
Internet Data Sheet
Rev. 1.21, 2007-03
09152006-J5FK-C565
17
HYS72T[32/64]0xxHR–[2.5/3/3S/3.7/5]–A
Registered DDR2 SDRAM Modules
3.3
AC Characteristics
This chapter describes the AC characteristics.
3.3.1
Speed Grades Definitions
This chapter contains the Speed Grades Definitions tables.
TABLE 13
Speed Grade Definition Speed Bins for DDR2–800E
Speed Grade
DDR2–800E
Unit
Note
QAG Sort Name
–2.5
CAS-RCD-RP latencies
6–6–6
t
CK
Parameter
Symbol
Min.
Max.
—
Clock Frequency
@ CL = 3
@ CL = 4
@ CL = 5
@ CL = 6
t
CK
t
CK
t
CK
t
CK
t
RAS
t
RC
t
RCD
t
RP
5
3.75
3
2.5
45
60
15
15
8
8
8
8
70000
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
1)2)3)4)
1) Timings are guaranteed with CK/CK differential Slew Rate of 2.0 V/ns. For DQS signals timings are guaranteed with a differential Slew
Rate of 2.0 V/ns in differential strobe mode and a Slew Rate of 1 V/ns in single ended mode. Timings are further guaranteed for normal
OCD drive strength (EMRS(1) A1 = 0)
2) The CK/CK input reference level (for timing reference to CK/CK) is the point at which CK and CK cross. The DQS / DQS, RDQS / RDQS,
input reference level is the crosspoint when in differential strobe mode
3) Inputs are not recognized as valid until
V
REF
stabilizes. During the period before
V
REF
stabilizes, CKE = 0.2 x
V
DDQ
is recognized as low.
4) The output timing reference voltage level is
V
TT
.
5)
t
RAS.MAX
is calculated from the maximum amount of time a DDR2 device can operate without a refresh command which is equal to 9 x
t
REFI
.
1)2)3)4)
1)2)3)4)
1)2)3)4)
Row Active Time
Row Cycle Time
RAS-CAS-Delay
Row Precharge Time
1)2)3)4)5)
1)2)3)4)
1)2)3)4)
1)2)3)4)
相關(guān)PDF資料
PDF描述
HYS72T32000HR-3S-A 240-Pin Registered DDR2 SDRAM Modules
HYS72T32000HR-5-A 240-Pin Registered DDR2 SDRAM Modules
HYS72T64001HR 240-Pin Registered DDR2 SDRAM Modules
HYS72T64001HR-2.5-A 240-Pin Registered DDR2 SDRAM Modules
HYS72T64001HR-3.7-A 240-Pin Registered DDR2 SDRAM Modules
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HYS72T32000HR-3S-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T32000HR-5-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T32000HU 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-2.5-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-25F-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
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