參數(shù)資料
型號: IDT7005L70FB
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM
中文描述: 8K X 8 DUAL-PORT SRAM, 70 ns, QFP68
封裝: 0.970 X 0.970 INCH, 0.080 INCH HEIGHT, QFP-68
文件頁數(shù): 7/20頁
文件大?。?/td> 265K
代理商: IDT7005L70FB
IDT7005S/L
HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.06
15
WAVEFORM OF INTERRUPT TIMING(1)
TRUTH TABLES
TRUTH TABLE I — INTERRUPT FLAG(1,4)
Left Port
Right Port
R/
W
WL
CE
CEL
OE
OEL A12L-A0L INT
INT
INTL
R/
W
WR
CE
CER
OE
OER A12R-A0R INT
INT
INTR
Function
L
X
1FFF
XXXXX
L
(2)
Set Right
INTR Flag
X
L
1FFF
H
(3)
Reset Right
INTR Flag
XX
X
L
(3)
L
X
1FFE
X
Set Left
INTL Flag
X
L
1FFE
H
(2)
XXXXX
Reset Left
INTL Flag
NOTES:
2738 tbl 17
1. Assumes
BUSYL = BUSYR = VIH.
2. If
BUSYL = VIL, then no change.
3. If
BUSYR = VIL, then no change.
4.
INTR and INTL must be initialized at power-up.
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. See Interrupt truth table.
3. Timing depends on which enable signal (
CE or R/W) asserted last.
4. Timing depends on which enable signal (
CE or R/W) is de-asserted first.
2738 drw 18
ADDR"B"
INTERRUPT CLEAR ADDRESS
CE"B"
OE"B"
tAS
tRC
(3)
tINR(3)
INT"B"
(2)
2738 drw 17
ADDR"A"
INTERRUPT SET ADDRESS
CE"A"
R/
W"A"
tAS
tWC
tWR
(3)
(4)
tINS (3)
INT"B"
(2)
相關PDF資料
PDF描述
IDT7005L70G HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM
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