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參數(shù)資料
| 型號(hào)： | HM621100A |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 1048576-word ×1-bit High Speed CMOS Static RAM(1048576字 ×1位高速CMOS SRAM) |
| 中文描述： | 1048576字× 1位高速CMOS靜態(tài)RAM（1048576字× 1位高速CMOS SRAM的） |
| 文件頁(yè)數(shù)： | 7/16頁(yè) |
| 文件大?。?/td> | 94K |
| 代理商： | HM621100A |
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HM621100A Series
7
Read Timing Waveform (2)
*1
(
WE
= V
IH
)
t
RC
t
ACS
t
LZ
t
PU
High-Z
50%
Valid Data
t
PD
50%
High-Z
t
HZ
CS
Dout
V
CC
supply
Current
I
CC
I
SB
Note: 1. Address valid prior to or coincident with
CS
transition low.
Write Cycle
HM621100A-20
HM621100A-25
HM621100A-35
Parameter
Symbol Min
Max
Min
Max
Min
Max
Unit
Write cycle time
t
WC
20
—
25
—
35
—
ns
Chip selection to end of write
t
CW
15
—
17
—
25
—
ns
Address valid to end of write
t
AW
16
—
20
—
30
—
ns
Address setup time
t
AS
0
—
0
—
0
—
ns
Write pulse width
t
WP
*2
15
—
17
—
25
—
ns
Write recovery time
t
WR
*3
0
—
0
—
0
—
ns
Write to output in high-Z
t
WZ
*1
0
12
0
15
0
15
ns
Data to write time overlap
t
DW
12
—
15
—
20
—
ns
Data hold from write time
t
DH
0
—
0
—
0
—
ns
Output active from end of write
t
OW
*1
0
—
0
—
0
—
ns
Output hold from address
change
Notes: 1. Transition is measured
±
200 mV from high impedance voltage with Load (B). This parameter is
sampled and not 100% tested.
2. A write occurs during the overlap of a low
CS
and a low
WE
.
3. t
WR
is measured from the earlier of
CS
or
WE
going high to the end of write cycle.
4. Dout is the same phase of write data of this write cycle, if t
WR
is long enough.
t
OH
*4
5
—
5
—
5
—
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HM621400HCLJP-10 | 4M High Speed SRAM (4-Mword x 1-bit) |
| HM621400HCJP-10 | 4M High Speed SRAM (4-Mword x 1-bit) |
| HM621400HC | 4M High Speed SRAM (4-Mword x 1-bit) |
| HM621400HJP-10 | 4M High Speed SRAM (4-Mword x 1-bit) |
| HM621400HJP-12 | 4M High Speed SRAM (4-Mword x 1-bit) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HM621100AJP20 | 制造商:HITACHI 功能描述:GREEN TEST DOTS |
| HM621100AJP-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x1 SRAM |
| HM621100AJP-25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x1 SRAM |
| HM621100AJP-35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x1 SRAM |
| HM621100ALJP-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x1 SRAM |
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