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SP3243CA Datasheet

  • SP3243CA

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

  • 23頁

  • SIPEX

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廬
SP3223/3243
Intelligent +3.0V to +5.5V RS-232 Transceivers
鈻?/div>
Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
鈻?/div>
Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a +2.7V
power source
鈻?/div>
AUTO ON-LINE
廬
circuitry automatically
wakes up from a 1碌A shutdown
鈻?/div>
Minimum 120Kbps data rate under load
鈻?/div>
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
鈻?/div>
ESD Specifications:
+2kV Human Body Model
DESCRIPTION
The
SP3223
and
SP3243
products are RS-232 transceiver solutions intended for portable or
hand-held applications such as notebook and palmtop computers. The
SP3223
and
SP3243
use 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
SP3223/
SP3243
series to deliver compliant RS-232 performance from a single power supply ranging
from +3.3V to +5.0V. The
SP3223
is a 2-driver/2-receiver device, and the
SP3243
is a
3-driver/5-receiver device ideal for laptop/notebook computer and PDA applications.
The
SP3243
includes one complementary receiver that remains alert to monitor an external
device's Ring Indicate signal while the device is shutdown.
The AUTO ON-LINE
廬
feature allows the device to automatically "wake-up" during a shutdown
state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise,
the device automatically shuts itself down drawing less than 1碌A.
SELECTION TABLE
Device
Power Supplies
RS-232
Drivers
2
3
RS-232
Receivers
2
5
External
Components
4 capacitors
4 capacitors
AUTO ON-LINE
廬
TTL 3-State
Circuitry
YES
YES
YES
YES
No. of
Pins
20
28
SP3223
SP3243
+3.0V to +5.5V
+3.0V to +5.5V
Applicable U.S. Patents - 5,306,954; and other patents pending.
Rev. 6/30/03
SP3223 +3.0V to +5.5V RS-232 Transceivers
漏 Copyright 2003 Sipex Corporation
1

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