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SP3249

Sipex
Part Number SP3249
Manufacturer Sipex
Description Intelligent +3.0V to +5.5V RS-232 Transceivers
Published Jun 7, 2005
Detailed Description ® SP3249E Intelligent +3.0V to +5.5V RS-232 Transceivers s Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V po...
Datasheet PDF File SP3249 PDF File

SP3249
SP3249

Overview
® SP3249E Intelligent +3.
0V to +5.
5V RS-232 Transceivers s Meets true EIA/TIA-232-F Standards from a +3.
0V to +5.
5V power supply s Interoperable with EIA/TIA-232 and adheres to EIA/TIA-562 down to a +2.
7V power source s Minimum 250Kbps data rate under load s Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations s Enhanced ESD Specifications: +15KV Human Body Model +15KV IEC1000-4-2 Air Discharge +8KV IEC1000-4-2 Contact Discharge DESCRIPTION The SP3249E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers.
The SP3249E uses an internal high-efficiency, charge-pump power supply that requires only 0.
1µF capacitors in 3.
3V operation.
This charge pump and Sipex's driver architecture allow the SP3249E device to deliver compliant RS-232 performance from a single power supply ranging from +3.
0V to +5.
0V.
The SP3249E is a 5-driver/3-receiver device, ideal for laptop/notebook computer and PDA applications.
SELECTION TABLE Part Number Power Supplies RS-232 Drivers RS-232 Receivers External Components AUTO ON-LINE™ Circuitry TTL 3-State Number of Pins SP3223E SP3243E SP3238E SP3239E SP3249E +3.
0V to +5.
5V +3.
0V to +5.
5V +3.
0V to +5.
5V +3.
0V to +5.
5V +3.
0V to +5.
5V 2 3 5 5 5 2 5 3 3 3 4 capacitors 4 capacitors 4 capacitors 4 capacitors 4 capacitors YES YES YES NO NO YES YES YES YES NO 20 28 28 28 24 Applicable U.
S.
Patents - 5,306,954; and other patents pending.
Rev.
4/08/02 SP3249E Intelligent +3.
0V to +5.
5V RS-232 Transceivers © Copyright 2002 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied.
Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device.
VCC.
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