2

FN6053.3

March 13, 2006

Pinouts

ISL43681 (QFN)

TOP VIEW

ISL43741 (QFN)

TOP VIEW

COM

NO7

NO5

EN

EN

NO4

NO0

NO6

ADDC

ADDB

1

2

3

4

5

78

9

10

6

20

19

18

17

16

13

14

15

12

11

LOGIC

EN

EN

ADDB

1

2

3

4

5

78

9

10

6

20

19

18

17

16

13

14

15

12

11

LOGIC

Truth Tables

ISL43681

LE

EN

EN

ADDC ADDB ADDA

SWITCH ON

010

X

X

X

Last Switch

Selected

X

0

XXXX

NONE

XX

1

XXX

NONE

110000

NO0

110001

NO1

110010

NO2

110011

NO3

110100

NO4

110101

NO5

110110

NO6

110111

NO7

NOTE: Logic “0”

≤0.8V. Logic “1” ≥2.4V, with V+ between 2.7V and

10V. X = Don’t Care.

ISL43741

LE

EN

EN

ADDB ADDA

SWITCH ON

0

1

0

X

X

Last Switch Selected

X

0

X

X

X

NONE

XX

1

X

X

NONE

11000

11001

11010

11011

NOTE: Logic “0”

≤0.8V. Logic “1” ≥2.4V, with V+ between 2.7V and

10V. X = Don’t Care.

Ordering Information

PART NO.

PART

MARKING

TEMP.

RANGE (°C) PACKAGE

PKG.

DWG. #

ISL43681IR

43681IR

-40 to 85

20 Ld QFN L20.4x4

ISL43681IRZ

(Note)

43681IRZ

-40 to 85

20 Ld QFN

(Pb-free)

L20.4x4

ISL43741IR

43741IR

-40 to 85

20 Ld QFN L20.4x4

ISL43741IRZ

(Note)

43741IRZ

-40 to 85

20 Ld QFN

(Pb-free)

L20.4x4

*Add “-T” suffix for tape and reel.

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020.

Pin Descriptions

PIN

FUNCTION

V+

Positive Power Supply Input

V-

Negative Power Supply Input. Connect to GND for

Single Supply Configurations.

GND

Ground Connection

EN

Digital Control Input. Connect to GND for Normal

Operation. Connect to V+ to turn all switches off.

EN

Digital Control Input. Connect to V+ for Normal

Operation. Connect to GND to turn all switches off.

LE

Digital Control Input. Connect to +V for Normal

Operation. Connect to GND to latch the last switch state.

COM

Analog Switch Common Pin

NO

Analog Switch Normally Open Pin

ADD

Address Input Pin

N.C.

No Internal Connection

ISL43681, ISL43741