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SP3222EBCY-LTR Datasheet(PDF) 1 Page - Exar Corporation

Part # SP3222EBCY-LTR
Description  True 3.0V to 5.5V RS-232 Transceivers
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP3222EBCY-LTR Datasheet(HTML) 1 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3222EB/SP3232EB_103_081414
1
SP3222EB/SP3232EB
True +3.0V to +5.5V RS-232 Transceivers
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.
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
SELECTION TABLE
Now Available in Lead Free Packaging
V-
1
2
3
4
13
14
15
16
5
6
7
12
11
10
C1+
V+
C1-
C2+
C2-
R1IN
R2IN
GND
VCC
T1OUT
T2IN
8
9
SP3232EB
T1IN
R1OUT
R2OUT
T2OUT
Device
Power
Supplies
RS-232
Drivers
RS-232
Receivers
External
Components
Shutdown
TTL
3-State
# of
Pins
SP3222EB
+3.0V to
+5.5V
2
2
4 Capacitors
Yes
Yes
18, 20
SP3232EB
+3.0V to
+5.5V
2
2
4 Capacitors
No
No
16


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