SP3203E Datasheet, PDF (1/16 Pages) Sipex Corporation – 3V RS-232 Serial Transceiver with Logic Selector and15kV ESD Protection

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SP3203E
3V RS-232 Serial Transceiver with Logic
Selector and15kV ESD Protection
s 3 Driver/ 2 Receiver Architecture
s Logic selector function (V ) sets TTL
L
input/output levels for mixed logic
systems
s Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
s Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a
+2.7V power source
s Minimum 250Kbps data rate under load
s Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V_CC
Variations
s Enhanced ESD Specifications:
+15KV Human Body Model
+15KV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
s Applications
s Palmtops
s Cell phone Data Cables
s PDA's
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.
Rev. 2/7/01
SP3203E
1
© Copyright 2001 Sipex Corporation