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參數(shù)資料
| 型號： | IDT7MB4048S25P |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | DRAM |
| 英文描述： | 512K x 8 CMOS STATIC RAM MODULE |
| 中文描述： | 512K X 8 MULTI DEVICE SRAM MODULE, 25 ns, DMA32 |
| 封裝： | 0.600 INCH, FR-4, DIP-32 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 80K |
| 代理商： | IDT7MB4048S25P |
7.11
3
IDT7MB4048
512K x 8 CMOS STATIC RAM MODULE
COMMERCIAL TEMPERATURE RANGE
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 5V
±
10%, T
A
= 0
°
C to +70
°
C)
7MB4048
–30
Min. Max.
–25
–35
Symbol
Read Cycle
t
RC
t
AA
t
ACS
t
OE
t
OHZ(1)
t
OLZ(1)
t
CLZ(1)
t
CHZ(1)
t
OH
t
PU(1)
t
PD(1)
Write Cycle
t
WC
t
WP
t
AS(2)
t
AW
t
CW
t
DW
t
DH(2)
t
WR(2)
t
WHZ(1)
t
OW(1)
Parameter
Min. Max.
Min. Max. Unit
Read Cycle Time
Address Access Time
Chip Select Access Time
Output Enable to Output Valid
Output Disable to Output in High-Z
Output Enable to Output in Low-Z
Chip Select to Output in Low-Z
Chip Deselect to Output in High-Z
Output Hold from Address Change
Chip Select to Power-Up Time
Chip Deselect to Power-Down Time
25
—
—
—
—
0
5
—
3
0
—
—
25
25
12
12
—
—
14
—
—
25
30
—
—
—
—
0
5
—
3
0
—
—
30
30
15
12
—
—
16
—
—
30
35
—
—
—
—
0
5
—
3
0
—
—
35
35
15
15
—
—
20
—
—
35
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Write Cycle Time
Write Pulse Width
Address Set-up Time
Address Valid to End-of-Write
Chip Select to End-of-Write
Data to Write Time Overlap
Data Hold Time
Write Recovery Time
Write Enable to Output in High-Z
Output Active from End-of-Write
25
17
3
20
20
15
0
0
—
2
—
—
—
—
—
—
—
—
15
—
30
20
0
25
25
17
0
0
—
5
—
—
—
—
—
—
—
—
15
—
35
25
0
30
30
20
0
0
—
5
—
—
—
—
—
—
—
—
15
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
1. This parameter is guaranteed by design, but not tested.
2. t
AS
=0ns for
CS
controlled write cycles
.
t
DH
, t
WR
= 3ns for
CS
controlled write cycles.
2675 tbl 10
AC TEST CONDITIONS
Input Pulse Levels
Input Rise/Fall Times
Input Timing Reference Levels
Output Reference Levels
Output Load
GND to 3.0V
5ns
1.5V
1.5V
See Figures 1 & 2
2675 tbl 09
+5 V
30 pF*
DATA
OUT
480
255
2675 drw 04
Figure 1. Output Load
Figure 2. Output Load
(for t
OLZ
, t
CHZ
, t
OHZ
, t
WHZ
, t
OW
and
t
CLZ
)
+5 V
5 pF*
DATA
OUT
480
255
2675 drw 05
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