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January 2003

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EDS PROTECTION FOR RS-232 I/O PINS:

±15KV HUMAN BODY MODEL

±8KV IEC 1000-4-2 CONTACT DISCHARGE

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1

µA LOW POWER SHUTDOWN WITH

RECEIVERS ACTIVE

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GUARENTEED DATA RATE

250Kbps (Normal Operation)

1Mbps (Very High Speed Operation)

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GUARANTEED SLEW RATE RANGE

6V/

µs (Normal Operation)

24V/

µs (Very High Speed Operation)

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0.1

µF EXTERNAL CAPACITORS

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FLOW-THROUGH PINOUT

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AVAILABLE IN SO-28, SSOP-28 AND

TSSOP28

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LOW SUPPLY CURRENT 300

µA

DESCRIPTION

The ST3237E is a 3V to 5.5V powered EIA/

TIA-232 and V.28/V.24 communication interfaces

high

data-rate

capability

and

enhanced

electrostatic discharge (ESD) protection at ±8KV

using IEC1000-4-2 contact discharge and ±15kV

using Human Body Model (HBM). The other pins

are protected with standard ESD protection at

±2kV using HBM method. The ST3237C is a

transceiver (5 drivers, 3 receivers) for fast modem

applications.

The

device

has

a

proprietary

low-dropout

transmitter output stage providing true RS-232

performance from a 3V to 5.5V supply using a

dual charge pump. The device is guaranteed to

run at data rates of 250Kbps in the normal

operation mode and 1Mbps in the very high speed

operation mode while maintaining RS-232 output

levels.

ORDERING CODES

Type

Temperature

Range

Package

Comments

ST3237ECD

0 to 70 °C

SO-28 (Tube)

27parts per tube / 12tube per box

ST3237EBD

-40 to 85 °C

SO-28 (Tube)

27parts per tube / 12tube per box

ST3237ECDR

0 to 70 °C

SO-28 (Tape & Reel)

1000 parts per reel

ST3237EBDR

-40 to 85 °C

SO-28 (Tape & Reel)

1000 parts per reel

ST3237ECPR

0 to 70 °C

SSOP-28 (Tape & Reel)

1350 parts per reel

ST3237EBPR

-40 to 85 °C

SSOP-28 (Tape & Reel)

1350 parts per reel

ST3237ECTR (*)

0 to 70 °C

TSSOP28 (Tape & Reel)

2500 parts per reel

ST3237EBTR

-40 to 85 °C

TSSOP28 (Tape & Reel)

2500 parts per reel

ST3237E

±15KV ESD-PROTECTED, 1

µA, 3 TO 5.5V, 250KBPS,

RS-232 TRANSCEIVER WITH STAND-BY

SSOP

SOP

TSSOP