®
SP3223EH/3243EH
High Speed 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
Auto-Online
™
circuitry automatically
wakes up from a 1µA shutdown
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
s
460 Kbps minimum transmission rate
s
Ideal for High Speed RS-232 Applications
DESCRIPTION
The
SP3223EH
and
3243EH
products are RS-232 transceiver solutions intended for portable
or hand-held applications such as notebook and palmtop computers. The "H" series is based
on
Sipex's SP3223E/3243E
series and has been enhanced for high speed. The data rate is
improved to 460Kbps, easily meeting the demands of high speed RS-232 applications. The
SP3223EH
and
3243EH
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
SP3223EH/3243EH
series to deliver compliant RS-232 performance from
a single power supply ranging from +3.3V to +5.0V. The
SP3223EH
is a 2-driver/2-receiver
device, and the
SP3243EH
is a 3-driver/5-receiver device, ideal for laptop/notebook computer
and PDA applications. The
SP3243EH
includes one complementary receiver that remains
alert to monitor an external device's Ring Indicate signal while the device is shutdown.
The
Auto-Online
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
SP3223EH
SP3243EH
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.
SP3223EHDS/11
SP3223EH +3.0V to +5.5V RS-232 Transceivers
© Copyright 2000 Sipex Corporation
1
SIPEX [ SIPEX CORPORATION ]
