2

FN6073.4

July 26, 2007

Pinouts

ISL8488E, ISL8490E

(8 LD SOIC)

TOP VIEW

ISL8489E, ISL8491E

(14 LD SOIC)

TOP VIEW

VCC

RO

DI

GND

1

2

3

4

8

7

6

5

A

B

Z

Y

D

R

NC

RO

RE

DE

DI

GND

GND

VCC

NC

A

B

Z

Y

NC

1

2

3

4

5

6

7

14

13

12

11

10

9

8

D

R

Ordering Information

PART

NUMBER

(Note 1)

PART

MARKING

TEMP.

RANGE (°C) PACKAGE

PKG.

DWG. #

ISL8488EIB

8488 EIB

-40 to +85

8 Ld SOIC

M8.15

ISL8488EIBZA

(Note 2)

8488 EIBZ

-40 to +85

8 Ld SOIC

(Pb-free)

M8.15

ISL8489EIB

ISL8489EIB

-40 to +85

14 Ld SOIC M14.15

ISL8489EIBZ

(Note 2)

8489EIBZ

-40 to +85

14 Ld SOIC

(Pb-free)

M14.15

ISL8490EIBZ

(Note 2)

8490E IBZ

-40 to +85

8 Ld SOIC

(Pb-free)

M8.15

ISL8491EIB

ISL8491EIB

-40 to +85

14 Ld SOIC M14.15

ISL8491EIBZ

(Note 2)

8491EIBZ

-40 to +85

14 Ld SOIC

(Pb-free)

M14.15

NOTES:

1. Add “-T” suffix for tape and reel. Please refer to TB347 for details

on reel specifications.

2. 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.

TRANSMITTING

INPUTS

OUTPUTS

RE

DE

DI

Z

Y

X

1101

X

1010

X

0

X

High-Z

High-Z

RECEIVING

INPUTS

OUTPUT

RE

DE

A-B

RO

0X

≥ +0.2V

1

0X

≤ -0.2V

0

0

X

Inputs Open

1

1

X

X

High-Z

Pin Descriptions

PIN

FUNCTION

RO

Receiver output: If A > B by at least 0.2V, RO is high; If A < B by 0.2V or more, RO is low; RO = High if A and B are unconnected (floating).

RE

Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.

DE

Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.

DI

Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low.

GND

Ground connection.

A

±15kV HBM ESD Protected, Non-inverting receiver input.

B

±15kV HBM ESD Protected, Inverting receiver input.

Y

±15kV HBM ESD Protected, Non-inverting driver output.

Z

±15kV HBM ESD Protected, Inverting driver output.

VCC

System power supply input (4.5V to 5.5V).

NC

No Connection.

ISL8488E, ISL8489E, ISL8490E, ISL8491E