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Document Number: 70071

S-71241–Rev. H, 25-Jun-07

Vishay Siliconix

DG884

PIN CONFIGURATION AND ORDERING INFORMATION

All other states are not recommended.

DGND

GND

RS

GND

SALVO

WR

GND

GND

GND

CS

I/O

PLCC and CLCC

6543

2

1 44 43 42 41 40

7

8

9

10

11

12

13

14

15

16

17

18 19 20 21 22 23 24 25 26 27 28

39

38

37

36

35

34

33

32

31

30

29

Top View

ORDERING INFORMATION

Temp Range

Package

Part Number

- 40 to 85 °C

44-Pin PLCC

DG884DN

DG884DN-E3

TRUTH TABLE I

RS

I/O

CS

WR

SALVO

Actions

1

0

1

1

No change to Next Event latches

1

0

0

1

Next Event latches loaded as defined in table below

10001

Next Event latches are transparent

1

0

0

1

Next Event data latched-in

10

X

1

Data in all Next Event latches is simultaneously loaded into the Current Event latches,

i.e., all new crosspoint addresses change simultaneously when SALVO goes low

1

0

0

X

0

Current Event latches are transparent

1

0

X

1

Current Event data latched-in

10000

Both next and Current Event latches are transparent

11111

11011

0

X

X

1

1

All crosspoints opened (but data in Next Event latches is preserved)