SP3223EU Datasheet, PDF (1/25 Pages) Sipex Corporation – High Speed Intelligent +3.0V to +5.5V RS-232 Transceivers

®
SP3223EU/3243EU
High Speed Intelligent +3.0V to +5.5V
RS-232 Transceivers
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a +2.7V
power source
■ AUTO ON-LINE^® circuitry automatically
wakes up from a 1µA shutdown
■ Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
■ Enhanced ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
■ 1000 Kbps minimum transmission rate
■ Ideal for High Speed RS-232 Applications
EN 1
C1+ 2
20 _SHUTDOWN
19 VCC
V+ 3
C1- 4
C2+ 5
C2- 6
V- 7
18 GND
17 T₁OUT
SP3223EU 16 R₁IN
15 R₁OUT
14 ONLINE
T₂OUT 8
R₂IN 9
R₂OUT 10
13 _T1IN
12 T₂IN
11 STATUS
Now Available in Lead Free Packaging
DESCRIPTION
The SP3223EU and 3243EU 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
SP3223E/3243E 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 SP3223EU and 3243EU use 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 SP3223EU/3243EU series to
deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The
SP3223EU is a 2-driver/2-receiver device, and the SP3243EU is a 3-driver/5-receiver device, ideal for
laptop/notebook computer and PDA applications. The SP3243EU 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^® 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 1µA.
SELECTION TABLE
Device
Power Supplies RS-232 RS-232
External
Auto-Online TTL 3-State No. of
Drivers Receivers Components
Circuitry
Pins
SP3223EU +3.0V to +5.5V
2
2
4 capacitors
YES
YES
20
SP3243EU +3.0V to +5.5V
3
5
4 capacitors
YES
YES
28
Applicable U.S. Patents - 5,306,954; and other patents pending.
Date: 06/28/04
SP3223EU/3243EU +3.0V to +5.5V RS-232 Transceivers
1
© Copyright 2004 Sipex Corporation