IDT7005L Integrated Device Technology, Inc., IDT7005L Datasheet - Page 15

• Manufacturer Part Number: IDT7005L
• Description: High-speed 8k X 8 Dual-port Static RAM
• Manufacturer: Integrated Device Technology, Inc.

IDT7005S/L
HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM
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. See Interrupt truth table.
3. Timing depends on which enable signal (
4. Timing depends on which enable signal (
TRUTH TABLES
TRUTH TABLE I — INTERRUPT FLAG
NOTES:
1. Assumes
2. If
3. If
4.
INT
R/
ADDR
ADDR
BUSY
BUSY
X
X
X
L
W W W W W
R/
R and
INT
CE
INT
L
OE
CE
W
"A"
"A"
"A"
"B"
L
R
"B"
"B"
"B"
"B"
= V
= V
BUSY
INT
CE CE CE CE CE
X
X
L
L
IL
IL
L
L
, then no change.
, then no change.
must be initialized at power-up.
Left Port
L
=
BUSY
OE OE
OE OE
OE
X
X
X
L
R
L
= V
A
12L
IH
1FFF
1FFE
.
X
X
-A
0L
t
AS
t
AS
(3)
CE
t
(3)
CE
INT
INT
INT
INT
INT
H
INS (3)
t
L
INR (3)
X
X
(3)
(2)
or R/
or R/
L
INTERRUPT CLEAR ADDRESS
W
INTERRUPT SET ADDRESS
W
R/
) asserted last.
) is de-asserted first.
X
X
X
L
W W W W W
(1)
R
(1,4)
CE CE CE CE CE
X
L
L
X
R
t
WC
t
Right Port
RC
6.06
OE
OE OE
OE OE
X
X
X
L
R
A
12R
1FFF
1FFE
(2)
X
X
-A
(2)
0R
MILITARY AND COMMERCIAL TEMPERATURE RANGES
t
WR
INT
INT
INT
INT
INT
H
L
X
X
(2)
(3)
(4)
R
Set Right
Reset Right
Set Left
Reset Left
INT
INT
INT
L
INT
R
Flag
Function
L
Flag
R
Flag
Flag
2738 drw 17
2738 drw 18
2738 tbl 17
15