6.42

71321SA/LA and 71421SA/LA

High Speed 2K x 8 Dual-Port Static RAM with Interrupts

Industrial and Commercial Temperature Ranges

14

TimingWaveformof InterruptMode(1)

Set INT

Clear INT

NOTES:

1. All timing is the same for left and right ports. Port “A” may be either left or right port. Port “B” is the opposite from port “A”.

2. See 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.

AC Electrical Characteristics Over the

Operating Temperature Supply Voltage Range(1)

NOTE:

1. 'X' in part numbers indicates power rating (SA or LA).

tINS

ADDR"A"

INT"B"

INTERRUPT ADDRESS

tWC

tAS

R/

W"A"

tWR

2691 drw 14

(3)

(3)

(2)

(4)

tRC

INTERRUPT CLEAR ADDRESS

ADDR"B"

OE"B"

tINR

INT"B"

2691 drw 15

tAS(3)

(3)

(2)

,

71321X35

71421X35

Com'l Only

71321X55

71421X55

Com'l

& Ind

Symbol

Parameter

Min.Max.Min.Max.

Unit

INTERRUPT TIMING

tAS

Address Set-up Time

0

____

0

____

ns

tWR

Write Recovery Time

0

____

0

____

ns

tINS

Interrupt Set Time

____

25

____

45

ns

tINR

Interrupt Reset Time

____

25

____

45

ns

2691 tbl 11b