SP3232EBEY-L-TR Datasheet, PDF (1/24 Pages) Exar Corporation – True +3.0V to +5.5V RS-232 Transceivers

SP3222EB/SP3232EB
True +3.0V to +5.5V RS-232 Transceivers
FEATURES
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ 250kbps Transmission Rate Under Load
■ 1µA Low Power Shutdown with
Receivers active (SP3222EB)
■ Interoperable with RS-232 down to a
+2.7V power source
■ Enhanced ESD Specifications:
+15kV Human Body Model
+15kV IEC61000-4-2 Air Discharge
+8kV IEC61000-4-2 Contact Discharge
DESCRIPTION
The SP3222EB/SP3232EB series is an RS-232 transceiver solution intended for portable or
hand-held applications such as notebook or laptop computers. The SP3222EB/SP3232EB
series has a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors
in 3.3V operation. This charge pump allows the SP3222EB/SP3232EB series to deliver true
RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3222EB/
SP3232EB are 2-driver/2-receiver devices. The ESD tolerance of the SP3222EB/SP3232EB
devices is over +/-15kV for both Human Body Model and IEC61000-4-2 Air discharge test
methods. The SP3222EB device has a low-power shutdown mode where the devices' driver
outputs and charge pumps are disabled. During shutdown, the supply current falls to less
than 1µA.
Device
SP3222EB
SP3232EB
Power
Supplies
+3.0V to
+5.5V
+3.0V to
+5.5V
RS-232 RS-232
External
Drivers Receivers Components
2
2
4 Capacitors
2
2
4 Capacitors
SELECTION TABLE
Shutdown TTL
# of
3-State Pins
Yes
Yes 18, 20
No
No
16
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7000• www.exar.com
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SP3222EB/SP3232EB_106_022316