SP3238EE

Features:

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
AUTO ON-LINE® circuitry automatically wakes up from a 1µA shutdown
Minimum 250Kbps data rate under load
Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations
Enhanced ESD Specifications for all TTL and RS-232 I/O lines:
   +15KV Human Body Model
   +15KV IEC1000-4-2 Air Discharge
   +8KV IEC1000-4-2 Contact Discharge


Pinout




Specifications

These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability and cause permanent damage to the
device.
VCC.......................................................-0.3V to +6.0V
V+ (NOTE 1).......................................-0.3V to +7.0V
V- (NOTE 1)........................................+0.3V to -7.0V
V+ + |V-| (NOTE 1)...........................................+13V
ICC (DC VCC or GND current).........................+100mA
Input Voltages
TxIN, ONLINE,
SHUTDOWN, .....................................-0.3V to +6.0V
RxIN...................................................................+25V
Output Voltages
TxOUT.............................................................+13.2V
RxOUT, STATUS.......................-0.3V to (VCC + 0.3V)
Short-Circuit Duration
TxOUT.....................................................Continuous
Storage Temperature......................-65°C to +150°C
Power Dissipation per package
28-pin SSOP
(derate 11.2mW/oC above +70oC).................900mW
28-pin TSSOP
(derate 13.2mW/oC above +70oC)...............1100mW


Description

The SP3238EE device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers. The SP3238EE uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump and Sipex's driver architecture allow the SP3238EE device to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.0V. The SP3238E is a 5-driver/3-receiver device, ideal for laptop/notebook computer and PDA applications. The SP3238EE includes one complementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device is shutdown.

The AUTO ON-LINE® feature allows SP3238EE to automatically "wake-up" during a shutdown state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise, the device automatically shuts itself down drawing less than 1µA.