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參數(shù)資料
| 型號： | HM621664HB |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 1 M High Speed SRAM (64-kword ×16-bit)(1 M 高速 SRAM (64k字 ×16位)) |
| 中文描述： | 高1米高速SRAM（64 KWord的× 16位）（1米高速靜態(tài)存儲器（64K的字× 16位）） |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 116K |
| 代理商： | HM621664HB |
HM621664HB Series
7
Write Cycle
HM621664HB -15 HM621664HB -20
Parameter
Symbol
Min
Max
Min
Max
Unit
Notes
Write cycle time
t
WC
t
AW
t
CW
t
WP
t
LBW
, t
UBW
t
AS
t
WR
t
DW
t
DH
t
OW
t
OHZ
t
WHZ
15
—
20
—
ns
Address valid to end of write
12
—
15
—
ns
Chip select to end of write
10
—
12
—
ns
8
Write pulse width
10
—
12
—
ns
7
Byte select to end of write
10
—
12
—
ns
9, 10
Address setup time
0
—
0
—
ns
5
Write recovery time
0
—
0
—
ns
6
Data to write time overlap
8
—
10
—
ns
Data hold from write time
0
—
0
—
ns
Write disable to output in low-Z
3
—
3
—
ns
1
Output disable to output in high-Z
—
7
—
7
ns
1
Write enable to output in high-Z
Notes: 1. Transition is measured
±
200 mV from steady voltage with Load (B). This parameter is sampled
and not 100% tested.
2. If the
CS
or
LB
or
UB
low transition occurs simultaneously with the
WE
low transition or after the
WE
transition, output remains a high impedance state.
3.
WE
and/or
CS
must be high during address transition time.
4. If
CS
,
OE
,
LB
and
UB
are low during this period, I/O pins are in the output state. Then the data
input signals of opposite phase to the outputs must not be applied to them.
5. t
AS
is measured from the latest address transition to the latest of
CS
,
WE
,
LB
or
UB
going low.
6. t
WR
is measured from the earliest of
CS
,
WE
,
LB
or
UB
going high to the first address transition.
7. A write occurs during the overlap of low
CS
, low
WE
and low
LB
or low
UB
.
8. t
CW
is measured from the later of
CS
going low to the end of write.
9. t
LBW
is measured from the later of
LB
going low to the end of write.
10.t
UBW
is measured from the later of
UB
going low to the end of write.
—
7
—
7
ns
1
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PDF描述 |
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| HM62256ALFP-10T | Circular Connector; No. of Contacts:100; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:24-2 RoHS Compliant: No |
| HM62256ALFP-12SLT | Circular Connector; No. of Contacts:128; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:24-35 RoHS Compliant: No |
| HM62256ALFP-12T | Circular Connector; No. of Contacts:128; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:24-35 RoHS Compliant: No |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HM621664HBJP-15 | 制造商:HITACHI 功能描述: |
| HM621664HBJP-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM |
| HM621664HBLJP-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM |
| HM621664HBLJP20 | 制造商:HIT 功能描述:NEW |
| HM621664HBLJP-20 | 制造商:HITACHI 功能描述: 制造商:Hitachi 功能描述: |
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