IDT70V28L Integrated Device Technology, IDT70V28L Datasheet - Page 13

• Manufacturer Part Number: IDT70V28L
• Description: High-speed 3.3v 64k X 16 Dual-port Static Ram
• Manufacturer: Integrated Device Technology

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 BUSY
2. If BUSY
3. If BUSY
4. INT
5. Refer to Truth Table I - Chip Enable.
IDT70V28L
High-Speed 3.3V 64K x 16 Dual-Port Static RAM
R/W
X
X
X
L
ADDR
ADDR
L
L
and INT
INT
R/ W
CE
OE
L
R
CE
INT
= V
= V
"B"
"B"
"B"
"B"
"A"
CE
"A"
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
OE
R
X
X
X
L
=V
L
IH
.
A
15L
FFFF
FFFE
X
X
-A
0L
t
t
AS
AS
(3)
t
INS
INTERRUPT CLEAR ADDRESS
(3)
t
INR
INT
H
L
X
X
INTERRUPT SET ADDRESS
(3)
(2)
(3)
(3)
L
R/W
X
X
X
L
R
t
t
WC
RC
CE
13
X
X
L
L
R
Right Port
OE
X
X
X
L
R
(2)
(2)
t
WR
Industrial and Commercial Temperature Ranges
A
15R
FFFF
FFFE
(4)
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
L
Flag
R
Flag
4849 drw 15
4849 drw 16
Flag
4849 tbl 16