參數(shù)資料
型號: AS4SD1M16S-12
英文描述: x16 SDRAM
中文描述: x16內(nèi)存
文件頁數(shù): 43/51頁
文件大?。?/td> 1071K
代理商: AS4SD1M16S-12
S DR A M
AS4SD16M16
Austin Semiconductor, Inc.
AS4SD16M16
Rev. 1.5 6/03
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
43
WRITE - WITHOUT AUTO PRECHARGE
1
*CAS latency indicated in parentheses.
NOTES:
1. For this example, the burst length = 4, and the WRITE burst is followed by a “manual” PRECHARGE.
2. 14ns to 15ns is required between <D
IN
m
+ 3> and the PRECHARGE command, regardless of frequency.
3. A9, A11, and A12 = “Don’t Care”
TIMING PARAMETERS
MIN
0.8
MAX
MIN
MAX
t
AH
ns
t
CMS
1.5
ns
t
AS
1.5
ns
t
DH
0.8
1.5
ns
t
CH
2.5
ns
t
DS
ns
t
CL
2.5
ns
t
RAS
44
80,000
ns
t
CK(3)
7.5
ns
t
RC
66
ns
t
CK(2)
10
ns
t
RCD
20
ns
t
CKH
0.8
ns
t
RP
20
ns
t
CKS
1.5
ns
t
WR
15
ns
t
CMH
0.8
ns
-75
UNITS
-75
SYMBOL*
UNITS
SYMBOL*
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