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ST3237E

鹵 15KV ESD-protected, 1碌A, 3 to 5.5V, 250Kbps

RS-232 Transceiver with stand-by

Feature summary

s

ESD protection for RS-232 I/O pins

鈥?鹵15KV human body model

鈥?鹵8KV IEC 1000-4-2 contacts discharge

1碌A low power shutdown with receivers active

Guaranteed data rate

鈥?250Kbps (normal operation)

鈥?1Mbps (very high speed operation)

Guaranteed slew rate range

鈥?6V/碌s (normal operation)

鈥?24V/碌s (very high speed operation)

0.1碌F external capacitors

Flow-through pinout

Low supply current 300碌A

Available in SSOP-28 and SO-28

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..

s

s

SSOP

SOP

s

s

s

s

s

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 鹵8KV using

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

Human Body Model (HBM). The other pins are

protected with standard ESD protection at 鹵2kV

using HBM method. The ST3237C is a

Order codes

Part number

ST3237EBDR

ST3237ECPR

ST3237EBPR

Temperature

range

-40 to 85 擄C

0 to 70 擄C

-40 to 85擄C

Package

SO-28 (Tape & Reel)

SSOP-28 (Tape & Reel)

SSOP-28 (Tape & Reel)

Comments

1000 parts per reel

1350 parts per reel

1350 parts per reel

March 2006

Rev 6

1/17

www.st.com

17

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