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SP3243UEY/TR Datasheet

  • SP3243UEY/TR

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

  • 24頁

  • SIPEX

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廬
SP3223U/3243U
High Speed 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(chǔ) shutdown
鈻?/div>
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
鈻?/div>
ESD Specifications:
+2kV Human Body Model
鈻?/div>
1000 Kbps minimum transmission rate
鈻?/div>
Ideal for High Speed RS-232 Applications
EN
C1+
V+
C1-
C2+
C2-
V-
T
2
OUT
R
2
IN
1
2
3
4
5
6
7
8
9
SP3223U
20 SHUTDOWN
19
18
17
16
15
14
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
ONLINE
13 T
1
IN
12
11
T
2
IN
STATUS
R
2
OUT 10
Now Available in Lead Free Packaging
DESCRIPTION
The SP3223U and SP3243U products are RS-232 transceiver solutions intended for portable or hand-
held applications such as notebook and palmtop computers. The "U" series is based on Sipex's SP3223/
SP3243 series and has been enhanced for high speed. The data rate is improved to 1000kbps, easily
meeting the demands of high speed RS-232 applications. The SP3223U and SP3243U 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 SP3223U/SP3243U series to deliver compliant RS-
232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3223U is a 2-driver/
2-receiver device, and the SP3243U is a 3-driver/5-receiver device, ideal for laptop/notebook computer
and PDA applications. The SP3243U 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(chǔ).
SELECTION TABLE
Device
SP3223U
SP3243U
Power Supplies
+3.0V to +5.5V
+3.0V to +5.5V
RS-232
Drivers
2
3
RS-232
Receivers
2
5
External
Components
4 capacitors
4 capacitors
Auto-Online
Circuitry
YES
YES
TTL 3-State
YES
YES
No. of
Pins
20
28
Applicable U.S. Patents - 5,306,954; and other patents pending.
Date: 5/25/04
SP3223U/3243U +3.0V to +5.5V RS-232 Transceivers
漏 Copyright 2004 Sipex Corporation
1

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