®
SP3203E
3V RS-232 Serial Transceiver with Logic
Selector and15kV ESD Protection
FEATURES
■
3 Driver/ 2 Receiver Architecture
■
Logic selector function (V
L
) sets TTL
input/output levels for mixed logic
systems
■
Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■
Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a
+2.7V power source
■
Minimum 250Kbps data rate under load
■
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
■
Enhanced ESD Specifications:
+15KV Human Body Model
+15KV
IEC1000-4-2 Air Discharge
+8KV
IEC1000-4-2 Contact Discharge
■
Applications
■
Palmtops
■
Cell phone Data Cables
■
PDA's
C1+ 1
V+ 2
C
1
- 3
+
C
2
4
C
2
- 5
V-
T
1
IN
T
2
IN
6
7
8
SP3203E
20
SHUTDOWN
19 V
CC
18 GND
17 T
1
OUT
16 T
2
OUT
15 T
3
OUT
14 R
1
IN
13 R
2
IN
12
11
V
L
R
1
OUT
T
3
IN 9
R
2
OUT 10
Now Available in Lead Free Packaging
DESCRIPTION
The SP3203E provides a RS-232 transceiver solution for portable and hand-held applica-
tions such as palmtops, PDA's and cell phones. The SP3203E uses an internal high-
efficiency, charge-pump that requires only 0.1µF capacitors during 3.3V operation. This
charge pump and Sipex's driver architecture allow the SP3203E to deliver compliant RS-232
performance from a single power supply ranging from +3.0V to +5.5V.
The SP3203E is a 3-driver/2-receiver device, with a unique V
L
pin to program the TTL input
and output logic levels to allow interoperation in mixed-logic voltage systems such as PDA's
and cell phones. Receiver outputs will not exceed V
L
for V
OH
and transmitter input logic levels
are scaled by the magnitude of the V
L
input.
Date: 03/01/05
SP3203E, 3V RS232 Serial Transceiver with Logic Selector and 15kV ESD
© Copyright 2005 Sipex Corporation
1
SIPEX [ SIPEX CORPORATION ]
