RS-232 Transceivers - Maxlinear
Description
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
1
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied.
Exposure to absolute maximum rating cond...
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