SP3232EEA-L Datasheet, PDF (1/23 Pages) Exar Corporation – True +3.0V to +5.5V RS-232 Transceivers

SP3222E/SP3232E
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
■ Minimum 120kbps Data Rate Under Full
Load
■ 1µA Low Power Shutdown with
Receivers active (SP3222E)
■ 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
EN 1
C1+ 2
V+ 3
C1- 4
C2+ 5
C2- 6
V- 7
T2OUT 8
R2IN 9
18 _SHDN
17 VCC
16 GND
15 T1OUT
SP3222E _{14 R1IN}
13 R1OUT
12 T1IN
11 _T2IN
10 R2OUT
nSOIC
Now Available in Lead Free Packaging
Note: See page 6 for other pinouts
DESCRIPTION
The SP3222E/SP3232E series is an RS-232 transceiver solution intended for portable or
hand-held applications such as notebook or palmtop computers. The SP3222E/SP3232E
series has a high-efficiency, charge-pump power supply that requires only 0.1µF capaci-
tors in 3.3V operation. This charge pump allows the SP3222E/SP3232E series to deliver
true RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The
SP3222E/SP3232E are 2-driver/2-receiver devices. This series is ideal for portable or
hand-held applications such as notebook or palmtop computers. The ESD tolerance of the
SP3222E/SP3232E devices are over +/-15kV for both Human Body Model and IEC61000-4-2
Air discharge test methods. The SP3222E 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.
MODEL
SP3222E
SP3232E
Power
Supplies
+3.0V to +5.5V
+3.0V to +5.5V
RS-232
Drivers
2
2
RS-232
Receivers
2
2
External
Components
4 Capacitors
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 • 510-668-7017 • www.exar.com

SP3222E/SP3232E_101_031413