®
SP3222EH/3232EH
3.3V, 460 Kbps RS-232 Transceivers
FEATURES
■Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■Interoperable with RS-232 down to +2.7V
power source
■1 µA Low-Power Shutdown with Receivers
Active (SP3222EH)
■Enhanced ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
■460Kbps Minimum Transmission Rate
■Ideal for Handheld, Battery Operated
Applications
16 VCC
C1+ 1
V+ 2
15 GND
C1-
3
C2+
4
C2-
5
12 R1OUT
V-
6
11 T1IN
T2OUT
7
10
R2IN
8
9
14 T1OUT
SP3232EH 13 R1IN
T2IN
R2OUT
Now Available in Lead Free Packaging
DESCRIPTION
The SP3222EH and the 3232EH 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 460Kbps meeting the demands of high speed RS-232
applications. Both ICS have a high-efficiency, charge-pump power supply that requires only
0.1µF capacitors for 3.3V operation. The charge pump allows the SP3222EH and the 3232EH
series to deliver true RS-232 performance from a single power supply ranging from +3.3V
to +5.0V. The ESD tolerance of the SP3222EH/3232EH devices exceeds +15kV for both
Human Body Model and IEC1000-4-2 Air discharge test methods.
The SP3222EH device has a low-power shutdown mode where the devices' driver outputs
and charge pumps are disabled. During shutdown, the supply current is less than 1µA.
SELECTION TABLE
MODEL
Power Supplies
RS-232
Drivers
RS-232
Receivers
External
Components
Shutdown
TTL
3-State
No. of
Pins
SP3222EH
+3.0V to +5.5V
2
2
4
Yes
Yes
18, 20
SP3232EH
+3.0V to +5.5V
2
2
4
No
No
16
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
1
© Copyright 2006 Sipex Corporation
