IDT7005S/L

HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM

MILITARY AND COMMERCIAL TEMPERATURE RANGES

6.06

15

TRUTH TABLES

Left Port

Right Port

R/

W

W

W

W

CE

CE

CE

CE

OE

OE

OE

OE

INT

INT

INT

R/

W

W

W

W

CE

CE

CE

CE

OE

OE

OE

OE

INT

INT

INT

Function

L

L

X

1FFF

XXXXX

L

(2)

Set Right

X

X

X

X

X

X

L

L

1FFF

H

(3)

Reset Right

XX

X

X

L

(3)

L

L

X

1FFE

X

Set Left

X

L

L

1FFE

H

(2)

XXXXX

Reset Left

NOTES:

2738 tbl 17

1. Assumes

2. If

3. If

4.

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

INTERRUPT CLEAR ADDRESS

(3)

(2)

2738 drw 17

INTERRUPT SET ADDRESS

R/

(3)

(4)

(2)