參數(shù)資料
型號: IDT7024L20F
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
中文描述: 4K X 16 DUAL-PORT SRAM, 20 ns, PQFP84
封裝: QFP-84
文件頁數(shù): 15/20頁
文件大小: 292K
代理商: IDT7024L20F
IDT7024S/L
HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.15
15
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 “A”.
2. See Interrupt truth table.
3. Timing depends on which enable signal (
CE
or R/
W
) is asserted last.
4. Timing depends on which enable signal (
CE
or R/
W
) is de-asserted first.
TRUTH TABLES
TRUTH TABLE III — INTERRUPT FLAG
(1,4)
Left Port
R/
W
L
CE
L
OE
L
A
11L
-A
0L
L
L
X
X
X
X
X
X
X
X
L
L
Right Port
OE
R
INT
L
R/
W
R
X
X
L
X
CE
R
A
11R
-A
0R
INT
X
FFF
FFE
X
R
L
(2)
H
(3)
X
X
Function
FFF
X
X
FFE
X
X
X
L
L
X
X
L
X
X
Set Right
INT
R
Flag
Reset Right
INT
R
Flag
Set Left
INT
L
Flag
Reset Left
INT
L
Flag
L
(3)
H
(2)
NOTES:
1. Assumes
BUSY
L
=
BUSY
R
= V
IH
.
2. If
BUSY
L
= V
IL
, then no change.
3. If
BUSY
R
= V
IL
, then no change.
4.
INT
R and
INT
L
must be initialized at power-up.
2740 tbl 17
WAVEFORM OF INTERRUPT TIMING
(1)
2740 drw 17
ADDR
"A"
INTERRUPT SET ADDRESS
CE
"A"
R/
W
"A"
t
AS
t
WC
t
WR
(3)
(4)
t
INS(3)
INT
"B"
(2)
2740 drw 18
ADDR
"B"
INTERRUPT CLEAR ADDRESS
CE
"B"
OE
"B"
t
AS
t
RC
(3)
t
INR(3)
INT
"B"
(2)
相關(guān)PDF資料
PDF描述
IDT7024L20FB HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
IDT7024L20G HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
IDT7024L20GB HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
IDT7024L20J HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
IDT7024L20JB HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
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