參數(shù)資料
型號(hào): IDT70T653MS15BCI
廠商: Integrated Device Technology, Inc.
英文描述: HIGH-SPEED 2.5V 512K x 36 ASYNCHRONOUS DUAL-PORT STATIC RAM WITH 3.3V 0R 2.5V INTERFACE
中文描述: 高速2.5V的為512k × 36 3.3 5011 2.5V的接口ASYNCHRONO美國(guó)雙端口靜態(tài)RAM
文件頁數(shù): 17/24頁
文件大?。?/td> 309K
代理商: IDT70T653MS15BCI
17
IDT70T653M Preliminary
High-Speed 2.5V 512K x 36 Asynchronous Dual-Port Static RAM Industrial and Commercial Temperature Ranges
Waveform of Interrupt Timing
(1)
t
WC
Truth Table III — Interrupt Flag
(1,4)
Left Port
NOTES:
1. All timing is the same for left and right ports. Port “A” may be either the left or right port. Port “B” is the port opposite from port “A”.
2. Refer to Interrupt Truth Table.
3.
CE
X
= V
IL
means
CE
0
X
= V
IL
and CE
1
X
= V
IH
.
CE
X
= V
IH
means
CE
0
X
= V
IH
and/or CE
1
X
= V
IL
.
4. Timing depends on which enable signal (
CE
or R/
W
) is asserted last.
5. Timing depends on which enable signal (
CE
or R/
W
) is de-asserted first.
NOTES:
1.
2.
3.
4.
Assumes
BUSY
L
=
BUSY
R
=V
IH
.
CE
0
X
= V
IL
and CE
1
X
= V
IH
.
If
BUSY
L
= V
IL
, then no change.
If
BUSY
R
= V
IL
, then no change.
INT
L
and
INT
R
must be initialized at power-up.
5679 drw 18
ADDR
"A"
INTERRUPT SET ADDRESS
CE
"A"(3)
R/
W
"A"
t
AS
t
WR
(4)
(5)
t
INS
(4)
INT
"B"
(2)
.
5679 drw 19
ADDR
"B"
INTERRUPT CLEAR ADDRESS
CE
"B"(3)
OE
"B"
t
AS
t
RC
(4)
t
INR
(4)
INT
"B"
(2)
.
Right Port
Function
R/
W
L
CE
L
OE
L
A
18L
-A
0L
INT
L
R/
W
R
CE
R
OE
R
A
18R
-A
0R
INT
R
L
L
X
7FFFF
X
X
X
X
X
L
(2)
Set Right
INT
R
Flag
X
X
X
X
X
X
L
L
7FFFF
H
(3)
Reset Right
INT
R
Flag
X
X
X
X
L
(3)
L
L
X
7FFFE
X
Set Left
INT
L
Flag
X
L
L
7FFFE
H
(2)
X
X
X
X
X
Reset Left
INT
L
Flag
5679 tbl 17
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