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參數(shù)資料
| 型號： | M374F3200DJ1-C |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 32M x 72 DRAM DIMM with ECC Using 16Mx4, 4K & 8K Refresh, 3.3V |
| 中文描述： | 32M × 72配置，帶ECC DRAM的內(nèi)存使用16Mx4，4K的 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 339K |
| 代理商： | M374F3200DJ1-C |
DRAM MODULE
M374F320(8)0DJ1-C
REV. 0.1 Oct. 2000
NOTES
An initial pause of 200us is required after power-up followed
by any 8 RAS-only or CAS-before-RAS refresh cycles before
proper device operation is achieved.
Input voltage levels are V
ih
/V
il
. V
IH
(min) and V
IL
(max) are ref-
erence levels for measuring timing of input signals. Transi-
tion times are measured between V
IH
(min) and V
IL
(max) and
are assumed to be 5ns for all inputs.
Measured with a load equivalent to 1 TTL loads and 100pF.
Operation within the
t
RCD
(max) limit insures that
t
RAC
(max)
can be met.
t
RCD
(max) is specified as a reference point only.
If
t
RCD
is greater than the specified
t
RCD
(max) limit, then
access time is controlled exclusively by
t
CAC
.
Assumes that
t
RCD
≥
t
RCD
(max).
This parameter defines the time at which the output achieves
the open circuit condition and is not referenced to V
OH
or
V
OL
.
t
WCS
,
t
RWD
,
t
CWD
and
t
AWD
are non-restrictive operating
parameter. They are inclueded in the data sheet as electrical
characteristics only. If
t
WCS
≥
t
WCS
(min), the cycle is an early
write cycle and the data out pin will remain high impedance
for the duration of the cycle. If
t
CWD
≥
t
CWD
(min),
t
RWD
≥
t
RWD
(min) and
t
AWD
≥
t
AWD
(min), then the cycle is a
read-write cycle and the data output will contain the data
read from the selected address. If neither of the above conti-
tions are satisfied, The condition of the data out is indeterni-
mated.
Either
t
RCH
or
t
RRH
must be satisfied for a read cycle.
Operation within the
t
RAD
(max) limit insures that
t
RAC
(max)
can be met.
t
RAD
(max) is specified as a reference point only.
If
t
RAD
is greater than the specified
t
RAD
(max) limit, then
access time is controlled exclusively by
t
AA
.
If RAS goes to high before CAS high going, the open circuit
condtion of the output is achieved by CAS high going. If CAS
goes to high before RAS high going, the open circuit cond-
tion of the output is achieved by RAS high going.
t
ASC
≥
6ns.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
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