ST3237EB_07 Datasheet, PDF (1/18 Pages) STMicroelectronics – ± 15 kV ESD protected, 1 μA, 3 to 5.5 V, 250 kbps RS-232 transceiver with stand-by

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