參數(shù)資料
型號: IDT7027L20GI
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: HIGH-SPEED 32K x 16 DUAL-PORT STATIC RAM
中文描述: 32K X 16 DUAL-PORT SRAM, 20 ns, CPGA108
封裝: CERAMIC, PGA-108
文件頁數(shù): 7/19頁
文件大?。?/td> 160K
代理商: IDT7027L20GI
6.42
IDT7027S/L
High-Speed 32K x 16 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
7
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6$,/9:+
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NOTES:
.
1. Transition is measured 0mV fromLow or High-impedance voltage with Output Test Load (Figure 2).
2. This parameter is guaranteed by device characterization, but is not production tested.
3. To access RAM
CE
= V
IL
and
SEM
= V
IH
. To access semaphore,
CE
= V
IH
and
SEM
= V
IL
.
4. 'X' in part numbers indicates power rating (S or L).
5. Refer to Chip Enable Truth Table.
6. Industrial temperature: for other speeds, packages and powers contact your sales office.
Figure 1. AC Output Test Load
Figure 2. Output Test Load
(for t
LZ
, t
HZ
, t
WZ
, t
OW
)
*Including scope and jig.
dInput Pulse Levels
Input Rise/Fall Times
Input Timng Reference Levels
Output Reference Levels
Output Load
GND to 3.0V
5ns Max.
1.5V
1.5V
Figures 1 and 2
3199 tbl 11
3199 drw 04
893
30pF
347
5V
DATA
OUT
BUSY
INT
893
5pF*
347
5V
DATA
OUT
7027X20
Com'l Only
7027X25
Com'l, Ind.
& Mlitary
7027X35
Com'l &
Mlitary
7027X55
Com'l &
Mlitary
Symbol
Parameter
Mn.
Max.
Mn.
Max.
Mn.
Max.
Mn.
Max.
Unit
READ CYCLE
t
RC
Read Cycle Time
20
____
25
____
35
____
55
____
ns
t
AA
Address Access Time
____
20
____
25
____
35
____
55
ns
t
ACE
Chip Enable Access Time
(3)
____
20
____
25
____
35
____
55
ns
t
ABE
Byte Enable Access Time
(3)
____
20
____
25
____
35
____
55
ns
t
AOE
Output Enable Access Time
____
12
____
13
____
20
____
30
ns
t
OH
Output Hold fromAddress Change
3
____
3
____
3
____
3
____
ns
t
LZ
Output Low-Z Time
(1,2)
3
____
3
____
3
____
3
____
ns
t
HZ
Output High-Z Time
(1,2)
____
12
____
15
____
15
____
25
ns
t
PU
Chip Enable to Power Up Time
(2,5)
0
____
0
____
0
____
0
____
ns
t
PD
Chip Disable to Power Down Time
(2,5)
____
20
____
25
____
35
____
50
ns
t
SOP
Semaphore Flag Update Pulse (
OE
or
SEM
)
10
____
12
____
15
____
15
____
ns
t
SAA
Semaphore Address Access Time
____
20
____
25
____
35
____
55
ns
3199 tbl 12
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IDT7027L20PF HIGH-SPEED 32K x 16 DUAL-PORT STATIC RAM
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