SP3203E_05 Datasheet, PDF (1/16 Pages) Sipex Corporation – 3V RS-232 Serial Transceiver with Logic Selector and15kV ESD Protection

®
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
C₁^- 3
C₂⁺ 4
C₂^- 5
V- 6
T₁IN 7
T₂IN 8
T₃IN ⁹
R₂OUT 10
20 SHUTDOWN
19 VCC
18 GND
SP3203E
17 T₁OUT
16 T₂OUT
15 T₃OUT
14 R₁IN
13 R₂IN
12 V_L
11 R₁OUT
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
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© Copyright 2005 Sipex Corporation