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參數(shù)資料
| 型號： | V53C8258L |
| 廠商： | Mosel Vitelic, Corp. |
| 英文描述： | Ultra-High Speed,3.3 Volt 256K x 8 Bit EDO Page Mode CMOS Dynamic RAM(3.3V超高速256Kx8EDO頁面模式CMOS動態(tài)RAM) |
| 中文描述： | 超高速，3.3伏特256K × 8位EDO公司頁面模式的CMOS動態(tài)RAM（3.3超高速256Kx8EDO頁面模式的CMOS動態(tài)內(nèi)存） |
| 文件頁數(shù)： | 7/18頁 |
| 文件大小： | 144K |
| 代理商： | V53C8258L |
MOSEL V ITELIC
V53C8258L
7
V53C8258L Rev. 1.4 February 1999
Notes:
1. I
CC
is dependent on output loading when the device output is selected. Specified I
CC
(max.) is measured with the
output open.
2.
I
CC
is dependent upon the number of address transitions. Specified I
CC
(max.) is measured with a maximum of two
transitions per address cycle in EDO Page Mode.
3. Specified V
IL
(min.) is steady state operating. During transitions, V
IL
(min.) may undershoot to –1.0 V for a period
not to exceed 20 ns. All AC parameters are measured with V
IL
(min.)
3
V
SS
and V
IH
(max.)
￡
V
CC
.
4. t
RCD
(max.) is specified for reference only. Operation within t
RCD
(max.) limits insures that t
RAC
(max.) and t
CAA
(max.) can be met. If t
RCD
is greater than the specified t
RCD
(max.), the access time is controlled by t
CAA
and t
CAC
.
5.
Either t
RRH
or t
RCH
must be satisified for a Read Cycle to occur.
6.
Measured with a load equivalent to one TTL input and 50 pF.
7.
Access time is determined by the longest of t
CAA
, t
CAC
and t
CAP
.
8.
Assumes that t
RAD
￡
t
RAD
(max.). If t
RAD
is greater than t
RAD
(max.), t
RAC
will increase by the amount that t
RAD
ex-
ceeds t
RAD
(max.).
9.
Assumes that t
RCD
￡
t
RCD
(max.). If t
RCD
is greater than t
RCD
(max.), t
RAC
will increase by the amount that t
RCD
exceeds t
RCD
(max.).
10.
Assumes that t
RAD
3
t
RAD
(max.).
11.
Operation within the t
RAD
(max.) limit ensures 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, the access time is controlled by t
CAA
and t
CAC
.
12.
t
WCS
, t
RWD
, t
AWD
and t
CWD
are not restrictive operating parameters.
13.
t
WCS
(min.) must be satisfied in an Early Write Cycle.
14.
t
DS
and t
DH
are referenced to the latter occurrence of CAS or WE.
15.
t
T
is measured between V
IH
(min.) and V
IL
(max.). AC-measurements assume t
T
= 3 ns .
16.
Assumes a three-state test load (5 pF and a 380 Ohm Thevenin equivalent).
17.
An initial 200
m
s pause and 8 RAS-containing cycles are required when exiting an extended period of bias without
clocks. An extended period of time without clocks is defined as one that exceeds the specified Refresh Interval.
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