®
SP3220EB/EU
High Speed +3.0V to +5.5V RS-232 Driver/Receiver Pair
■
Meets True RS-232 Protocol Operation
From A +3.0V to +5.5V Power Supply
■
Minimum 250 Kbps Data Rate
(SP3220EB) or 1Mbps Data Rate
(SP3220EU) under Fully Load
■
1µA Low-Power Shutdown With
Receivers Active
■
Interoperable With EIA/TIA - 232 and
adheres to EIA/TIA - 562 Down to
+2.7V Power Source
■
Pin-Compatible With The
MAX3221E
Device Without
The
AUTO ON-LINE
®
Feature
■
ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
DESCRIPTION
The
SP3220EB/EU
device is an RS-232 driver/receiver solution intended for portable or hand-
held applications such as notebook or palmtop computers. The
SP3220EB/EU
device has a high-
efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This
charge pump allows the
SP3220EB/EU
device to deliver true RS-232 performance from a single
power supply ranging from +3.3V to +5.0V. The ESD tolerance of the SP3220EB/EUE device is
over ±15kV for both Human Model and IEC1000-4-2 Air discharge test methods.
The
SP3220EB/EU
device has a low-power shutdown mode where the driver outputs and charge
pumps are disabled. During shutdown, the supply current falls to less than 1µA.
V
CC
+
15
V
CC
2 C1+
0.1µF
4 C1-
5 C2+
C2
+
0.1µF
6 C2-
11 T1IN
9 R1OUT
5kΩ
1 EN
GND
14
*can be returned to
either V
CC
or GND
SHDN
16
T1OUT
R1IN
13
8
V+
3
*C3
+
0.1µF
C5
0.1µF
C1
+
SP3220EB/EU
V-
7
C4
+
0.1µF
LOGIC
INPUTS
LOGIC
OUTPUTS
RS-232
OUTPUTS
RS-232
INPUTS
Rev: A Date:12/11/03
SP3220EB/EU +3.0 to +5.0V RS-232 Transceivers
1
SP
32
20
EB
/EU
© Copyright 2002 Sipex Corporation
SIPEX [ SIPEX CORPORATION ]
