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参数资料
| 型号： | 70V18L15PF8 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | SRAM |
| 英文描述： | 64K X 9 DUAL-PORT SRAM, 15 ns, PQFP100 |
| 封装： | TQFP-100 |
| 文件页数： | 5/17页 |
| 文件大小： | 157K |
| 代理商： | 70V18L15PF8 |
13
IDT70V18L
High-Speed 3.3V 64K x 9 Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Truth Table IV — Interrupt Flag(1,4,5)
Waveform of Interrupt Timing(1,5)
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. 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.
5. Refer to Truth Table I - Chip Enable.
NOTES:
1.
Assumes
BUSYL = BUSYR =VIH.
2.
If
BUSYL = VIL, then no change.
3.
If
BUSYR = VIL, then no change.
4.
INTL and INTR must be initialized at power-up.
5. Refer to Truth Table I - Chip Enable.
4854 drw 15
ADDR"A"
INTERRUPT SET ADDRESS
CE"A"
R/
W"A"
tAS
tWC
tWR
(3)
(4)
tINS
(3)
INT"B"
(2)
4854 drw 16
ADDR"B"
INTERRUPT CLEAR ADDRESS
CE"B"
OE"B"
tAS
tRC
(3)
tINR
(3)
INT"B"
(2)
Left Port
Right Port
Function
R/
WL
CEL
OEL
A15L-A0L
INTL
R/
WR
CER
OER
A15R-A0R
INTR
L
X
FFFF
X
L
(2)
Set Right
INTR Flag
X
L
FFFF
H
(3)
Reset Right
INTR Flag
XX
X
L(3)
L
X
FFFE
X
Set Left
INTL Flag
X
L
FFFE
H(2)
X
Reset Left
INTL Flag
4854 tbl 16
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