ST3237EB View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST3237EB

± 15 kV ESD protected, 1 µA, 3 to 5.5 V, 250 kbps RS-232 transceiver with stand-by

STMicroelectronics 

ST3237EB

± 15 kV ESD protected, 1 µA, 3 to 5.5 V, 250 kbps

RS-232 transceiver with stand-by

Features

■ ESD protection for RS-232 I/O pins

– ±15 kV human body model

– ±8 kV IEC 1000-4-2 contacts discharge

■ 1 µA low power shutdown with receivers active

■ Guaranteed data rate

– 250 kbps (normal operation)

– 1 Mbps (very high speed operation)

■ Guaranteed slew rate range

– 6 V/µs (normal operation)

– 24 V/µs (very high speed operation)

■ 0.1 µF external capacitors

■ Flow-through pinout

■ Low supply current 300 µA

■ Available in SSOP28 and SO-28

Description

SSOP

SOP

operation mode and 1 Mbps in the very high

speed operation mode while maintaining RS-232

output levels.

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

232 and V.28/V.24 communication interfaces high

data-rate capability and enhanced electrostatic

discharge (ESD) protection at ±8 kV using

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

Human Body Model (HBM). The other pins are

protected with standard ESD protection at ±2 kV

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 3 V to 5.5 V supply using a

dual charge pump. The device is guaranteed to

run at data rates of 250 kbps in the normal

Table 1. Device summary

Order code

Temperature

range

Package

Packaging

ST3237EBDR

ST3237EBPR

-40 to 85 °C

-40 to 85°C

SO-28 (tape and reel)

SSOP28 (tape and reel)

1000 parts per reel

1350 parts per reel

November 2007

Rev 7

1/18

www.st.com

18

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