ST3237E

Features:

EDS PROTECTION FOR RS-232 I/O PINS: ±15KV HUMAN BODY MODEL ±8KV IEC 1000-4-2 CONTACT DISCHARGE
1A LOW POWER SHUTDOWN WITH RECEIVERS ACTIVE
GUARENTEED DATA RATE 250Kbps (Normal Operation) 1Mbps (Very High Speed Operation)
GUARANTEED SLEW RATE RANGE 6V/s (Normal Operation) 24V/s (Very High Speed Operation)
0.1F EXTERNAL CAPACITORS
FLOW-THROUGH PINOUT
AVAILABLE IN SO-28, SSOP-28 AND TSSOP28
LOW SUPPLY CURRENT 300A


Pinout




Specifications

Symbol	Parameter	Value	Unit
VCC	Supply Voltage	-0.3 to 6	V
V+	Doubled Voltage Terminal	-0.3 to 7	V
V-	Inverted Voltage Terminal	0.3 to -7	V
V+ +|V-|		13	V
TIN	Transmitter Input Voltage Range	-0.3 to 6	V
SHDN,EN		-0.3 to 6	V
VHSCI	Very High Speed Control Input	-0.3 to (VCC +0.3)	V
RIN	Receiver Input Voltage Range	± 25	V
TOUT	Transmitter Output Voltage Range	± 13.2	V
ROUT,ROUTB	Receiver Output Voltage Range	-0.3 to (VCC +0.3)	V
tSHORT	Short Circuit Duration on TOUT (one at a time)	Continuous
Tstg	Storage Temperature Range	-65 to 150

AbsoluteMaximum Ratings are those values beyond which damage to the device may occur. Functional operation under thesecondition is not implied. V+ and V- can have a maximum magnitude of +7V, but their absolute addition can not exceed 13 V.


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 ST3237E 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 operationmode and1Mbps inthevery highspeed operation mode while maintaining RS-232 output levels.