IDT70V08 Integrated Device Technology, IDT70V08 Datasheet - Page 16

• Manufacturer Part Number: IDT70V08
• Description: 64k X 8 3.3v Dual-port Ram
• Manufacturer: Integrated Device Technology

Waveform of Interrupt Timing
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 Chip Enable Truth Table.
Truth Tables
Truth Table IV — Interrupt Flag
NOTES:
1. Assumes BUSY
2. If BUSY
3. If BUSY
4. INT
5. Refer to Chip Enable Truth Table.
IDT70V08S/L
High-Speed 3.3.V 64K x 8 Dual-Port Static RAM
R/W
X
X
X
L
ADDR
ADDR
L
L
and INT
INT
R/W
CE
OE
L
R
INT
CE
= V
= V
"B"
"B"
"B"
"B"
"A"
"A"
CE
IL
R
IL
"A"
"B"
X
X
L
L
, then no change.
, then no change.
must be initialized at power-up.
L
L
= BUSY
Left Port
R
OE
X
X
X
L
=V
L
IH
.
A
15L
FFFE
FFFF
X
X
-A
0L
t
t
AS
AS
t
(3)
INTERRUPT CLEAR ADDRESS
t
INS
(3)
INR
INT
H
INTERRUPT SET ADDRESS
L
X
X
(3)
(3)
(2)
(3)
L
R/W
(1,5)
X
X
L
X
R
(1,4,5)
t
t
WC
RC
CE
16
X
X
L
L
R
Right Port
OE
X
X
X
L
R
(2)
(2)
t
WR
Industrial and Commercial Temperature Ranges
A
(4)
15R
FFFE
FFFF
X
X
-A
0R
INT
H
L
X
X
(2)
(3)
R
Set Right INT
Reset Right INT
Set Left INT
Reset Left INT
L
Function
R
Flag
3740 drw 16
L
3740 drw 15
Flag
R
Flag
Flag
3740 tbl 16