ICL3237E

FN6014 Rev 2.00

Page 2 of 12

July 2004

Pinout

ICL3237E (SSOP)

TOP VIEW

C2+

GND

C2-

V-

EN

SHDN

C1+

C1-

MBAUD

V+

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG. DWG.

#

ICL3237ECA

0 to 70

28 Ld SSOP

M28.209

ICL3237ECAZ

(See Note)

0 to 70

28 Ld SSOP

(Pb-free)

M28.209

ICL3237EIA

-40 to 85

28 Ld SSOP

M28.209

ICL3237EIAZ

(See Note)

-40 to 85

28 Ld SSOP

(Pb-free)

M28.209

*Add “-T” suffix to part number for tape and reel packaging.

NOTE: Intersil Pb-free products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which is 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-020B.

Pin Descriptions

PIN

FUNCTION

System power supply input (3.0V to 5.5V).

V+

Internally generated positive transmitter supply (+5.5V).

V-

Internally generated negative transmitter supply (-5.5V).

GND

Ground connection.

C1+

External capacitor (voltage doubler) is connected to this lead.

C1-

External capacitor (voltage doubler) is connected to this lead.

C2+

External capacitor (voltage inverter) is connected to this lead.

C2-

External capacitor (voltage inverter) is connected to this lead.

TTL/CMOS compatible transmitter Inputs (Note 2).

15kV ESD Protected

15kV ESD Protected

TTL/CMOS level receiver outputs.

TTL/CMOS level, noninverting, always enabled receiver output.

EN

SHDN

Active low input to shut down transmitters and on-board power supply, to place device in low power mode (Note 2).

MBAUD

Input low selects 250kbps data rate, and input high selects 1Mbps data rate (Note 2).

NOTE:

2. These input pins incorporate positive feedback resistors. Once the input is driven to a valid logic level, the feedback resistor maintains that logic