參數(shù)資料
型號(hào)： MB814405D-70
廠商： Fujitsu Limited
英文描述： 1M ×4BIT Hyper Page Mode Dynamic RAM(CMOS 1M ×4 位超級(jí)頁(yè)面存取模式動(dòng)態(tài)RAM)
中文描述： 100萬× 4位超頁(yè)模式動(dòng)態(tài)RAM的CMOS（100萬× 4位超級(jí)頁(yè)面存取模式動(dòng)態(tài)內(nèi)存）
文件頁(yè)數(shù)： 10/29頁(yè)
文件大?。?/td> 596K
代理商： MB814405D-70
10
MB814405D-60/60L/-70/70L
Notes:
*1.
Referenced to V
SS
.
I
CC
depends on the output load conditions and cycle rates; The specified values are obtained with the
output open.
I
CC
depends on the number of address change as RAS = V
IL
and CAS = V
IH
I
CC1
, I
CC3
and I
CC5
are specified at one time of address change during RAS = V
IL
and CAS = V
IH
.
I
CC4
is specified at one time of address change during one Page cycle.
An Initial pause (RAS = CAS = V
IH
) of 200
μ
s is required after power-up followed by any eight RAS-
only cycles before proper device operation is achieved. In case of using internal refresh counter, a
minimum of eight CAS-before-RAS initialization cycles instead of 8 RAS cycles are required.
AC characteristics assume t
T
= 2 ns.
V
IH
(min) and V
IL
(max) are reference levels for measuring timing of input signals. Also transition times
are measured between V
IH
(min) and V
IL
(max).
Assumes that t
RCD
≤
t
RCD
(max), t
RAD
≤
t
RAD
(max). If t
RCD
is greater than the maximum recommended
value shown in this table, t
RAC
will be increased by the amount that t
RCD
exceeds the value shown. Refer
to Fig. 2 and 3.
If t
RCD
≥
t
RCD
(max), t
RAD
≥
t
RAD
(max), and t
ASC
≥
t
AA
- t
CAC
- t
T
, access time is t
CAC
.
If t
RAD
≥
t
RAD
(max) and t
ASC
≤
t
AA
- t
CAC
- t
T
, access time is t
AA
.
Measured with a load equivalent to two TTL loads and 100 pF.
t
OFF
, t
OFR
, t
WEZ
and t
OEZ
is specified that output buffer change to high impedance state.
Operation within the t
RCD
(max) limit ensures 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, access time is controlled
exclusively by t
CAC
or t
AA
.
t
RCD
(min) = t
RAH
(min) + 2t
T
+ t
ASC
(min).
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, access time is controlled
exclusively by t
CAC
or t
AA
.
Either t
RRH
or t
RCH
must be satisfied for a read cycle.
t
WCS
is specified as a reference point only. If t
WCS
≥
t
WCS
(min) the data output pin will remain High-Z
state through entire cycle.
Assumes that t
WCS
< t
WCS
(min).
Either t
DZC
or t
DZO
must be satisfied.
t
CPA
is access time from the selection of a new column address (that is caused by changing CAS from
“L” to “H”). Therefore, if t
CP
is long, t
CPA
is longer than t
CPA
(max) as shown in Fig. 4.
Assumes that CAS-before-RAS refresh.
Assumes that Test mode function.
The last CAS rising edge.
The first CAS falling edge.
*2.
*3.
*4.
*5.
*6.
*7.
*8.
*9.
*10.
*11.
*12.
*13.
*14.
*15.
*16.
*17.
*18.
*19.
*20.
*21.
*22.
相關(guān)PDF資料
PDF描述
MB814405D-7OL 1M ×4BIT Hyper Page Mode Dynamic RAM(CMOS 1M ×4 位超級(jí)頁(yè)面存取模式動(dòng)態(tài)RAM)
MB814800-60 CMOS 512K ×8 BIT FAST PAGE MODE DYNAMIC RAM(CMOS 512K ×8位快速頁(yè)面存取模式動(dòng)態(tài)RAM)
MB814800-70 CMOS 512K ×8 BIT FAST PAGE MODE DYNAMIC RAM(CMOS 512K ×8位快速頁(yè)面存取模式動(dòng)態(tài)RAM)
MB81F643242C 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM
MB81F643242C-10 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB8146112 制造商:FUJITSU 功能描述:*
MB81461-12PSZ 制造商:FUJITSU 功能描述:VRAM, FAST PAGE, 64KX4, 24 Pin, Plastic, ZIP
MB81461B-12 制造商:FUJITSU 功能描述: 制造商:FUGITSU 功能描述:81461B-12 制造商:FUJITSU 功能描述:81461B-12
MB81464-12 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:MOS 262,144 BIT DYNAMIC RANDOM ACCESS MEMORY
MB81464-12P 制造商:FUJI 功能描述: 制造商:Fuji Electric 功能描述: 制造商:FUJITSU 功能描述: 制造商:FUJITSU 功能描述:64K X 4 PAGE MODE DRAM, 120 ns, PDIP18
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*