參數(shù)資料
型號(hào): NT128D64S88A0G-8B
廠商: Electronic Theatre Controls, Inc.
英文描述: 184pin One Bank Unbuffered DDR SDRAM MODULE
中文描述: 一位銀行無緩沖184pin DDR SDRAM內(nèi)存模塊
文件頁數(shù): 12/15頁
文件大?。?/td> 191K
代理商: NT128D64S88A0G-8B
NT128D64S88A0G
128MB : 16M x 64
PC2100 / PC1600 Unbuffered DIMM
AC Timing Specifications for DDR SDRAM Devices Used on Module
( TA = 0 °C ~ 70 °C ; VDDQ = 2.5V ± 0.2V; VDD = 2.5V ± 0.2V, See AC Characteristics)
(Part 2 of 2)
REV1.0
/
June 2001
12
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
-7K
-75B
-8B
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Notes
t
IS
Address and control input setup time
(slow slewrate)
1.0
1.0
1.1
ns
2, 3, 4,
12, 13,
14, 17
2, 3, 4,
14
1,2,3,4
t
IPW
Input pulse width
2.2
2.2
-
ns
t
RPRE
Read preamble
0.9
1.1
0.9
1.1
0.9
1.1
t
CK
t
RPST
Read postamble
0.40
0.60
0.40
0.60
0.40
0.60
t
CK
1,2,3,4
t
RAS
Active to Precharge command
45
120,000
45
120,000
50
120,000
ns
1,2,3,4
t
RC
Active to Active/Auto-refresh
command period
65
65
70
ns
1,2,3,4
t
RFC
Auto-refresh to Active/Auto-refresh
command period
75
75
80
ns
1,2,3,4
t
RCD
Active to Read or Write delay
20
20
20
ns
1,2,3,4
t
RAP
Active to Read Command with
Autoprecharge
20
20
20
ns
1,2,3,4
t
RP
Precharge command period
20
20
20
ns
1,2,3,4
t
RRD
Active bank A to Active bank B
command
15
15
15
ns
1,2,3,4
t
WR
Write recovery time
15
(t
WR
/
t
CK
)
+
15
(t
WR
/
t
CK
)
+
15
(t
WR
/
t
CK
)
+
ns
1,2,3,4
t
DAL
Auto precharge write recovery +
precharge time
(t
RP
/
t
CK
)
(t
RP
/
t
CK
)
(t
RP
/
t
CK
)
t
CK
1, 2, 3,
4, 16
t
WTR
Internal write to read command delay
1
1
1
t
CK
1,2,3,4
t
XSNR
Exit self-refresh to non-read
command
75
75
80
ns
1,2,3,4
t
XSRD
Exit self-refresh to read command
200
200
200
t
CK
1,2,3,4
1, 2, 3,
t
REFI
Average Periodic Refresh Interval
15.6
15.6
15.6
μs
4, 8
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