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SP3239E Datasheet

  • SP3239E

  • Intelligent +3.0V to +5.5V RS-232 Transceivers

  • 14頁

  • SIPEX

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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 V
CC
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 0.1碌F 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鈩?/div>
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
漏 Copyright 2002 Sipex Corporation
1

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