SP3222EU Datasheet, PDF (1/20 Pages) Sipex Corporation – 3.3V, 1000 Kbps RS-232 Transceivers

SP3222EU/SP3232EU
3.3V, 1000 kbps RS-232 Transceivers
FEATURES
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ Minimum 1000kbps Data Rate
■ 1µA Low Power Shutdown with
Receivers active (SP3222EU)
■ 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
■ Ideal for Handheld, Battery Operated
Applications
EN 1
C1+ 2
18 _SHDN
17 VCC
V+ 3
16 GND
C1- 4
15 T1OUT
C2+ 5 ^SP3222EU 14 R1IN
C2- 6
13 R1OUT
V- 7
12 T1IN
T2OUT 8
R2IN 9
11 _T2IN
10 R2OUT
nSOIC
Now Available in Lead Free Packaging
DESCRIPTION
The SP3222EU and the SP3232EU are 2 driver, 2 receiver RS-232 transceiver solutions
intended for portable or hand-held applications such as notebook or palmtop computers.
Their data transmission rate of 1000 kbps meets the demands of high speed RS-232 ap-
plications. The SP3222EU/SP3232EU series has a high-efficiency, charge-pump power
supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump allows the
SP3222EU/SP3232EU series to deliver true RS-232 performance from a single power supply
ranging from +3.0V to +5.5V. The ESD tolerance of the SP3222EU/SP3232EU devices are
over +/-15kV for both Human Body Model and IEC61000-4-2 Air discharge test methods. The
SP3222EU 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.
SELECTION TABLE
MODEL
Power
Supplies
RS-232 RS-232
External Shutdown TTL
# of
Drivers Receivers Components
3-State Pins
SP3222EU +3.0V to +5.5V 2
2
4 Capacitors Yes
Yes 18, 20
SP3232EU +3.0V to +5.5V 2
2
4 Capacitors
No
No
16
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3222EU/SP3232EU_102_031413