1/13January 2003
a73 EDS PROTECTION FOR RS-232 I/O PINS:
±15KV HUMAN BODY MODEL
±8KV IEC 1000-4-2 CONTACT DISCHARGE
a73 1µA LOW POWER SHUTDOWN WITH
RECEIVERS ACTIVE
a73 GUARENTEED DATA RATE
250Kbps (Normal Operation)
1Mbps (Very High Speed Operation)
a73 GUARANTEED SLEW RATE RANGE
6V/µs (Normal Operation)
24V/µs (Very High Speed Operation)
a73 0.1µF EXTERNAL CAPACITORS
a73 FLOW-THROUGH PINOUT
a73 AVAILABLE IN SO-28, SSOP-28 AND
TSSOP28
a73 LOW SUPPLY CURRENT 300µA
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, 1µA, 3 TO 5.5V, 250KBPS,
RS-232 TRANSCEIVER WITH STAND-BY
SSOP
SOP
TSSOP