SP3282EB

Features:

Operates over entire Li+ Battery range
Interoperable with EIA/TIA-232-F and adheres to EIA/TIA-562 down to a +2.35V power supply
AUTO ON-LINE® circuitry automatically wakes up from a 1µA shutdown
Minimum 250Kbps data rate
Regulated charge pump yields stable RS-232 outputs regardless of V_CC variations
Unique V_L for low logic compatibility regardless of V_CC
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
Enhanced battery life as the V_CC drops below 3.1V


Application

  Cell phone data cables
  PDAs, PDA cradles
  Hand held equipment
  Peripherals


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.
V_CC......................................................-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
I_CC (DC VCC or GND current).........................+100mA
Input Voltages
V_L........................................................-0.3V to +6.0V
TxIN, ONLINE, SHUTDOWN, .............0.3V to +6.0V
RxIN..................................................................+25V
Output Voltages
TxOUT............................................................+13.2V
RxOUT, STATUS.......................-0.3V to (V_L  + 0.3V)
Short-Circuit Duration
TxOUT.....................................................Continuous
Storage Temperature......................-65°C to +150°C
Power Dissipation per package
28-pin SSOP
   (derate 11.2mW/^o C above +70^o C)............900mW
28-pin TSSOP
    (derate 13.2mW/ ^o C above +70^o C).........1100mW


Description

The SP3282EB device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers, PDAs, cell phones and their data cables and cradles.
The SP3282EB is compatible with low voltage logic down to 1.8V using a logic select pin (VL) which conditions the logic inputs and outputs to be compatible with system logic.
The SP3282EB 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 SP3282EB device to deliver compliant RS-232 performance from a single +3.3V to +5.5Vpower supply and additionally adhere to EIA/TIA-562 driver outputs levels  down to a power supply voltage of 2.35V.
The AUTO ON-LINE® feature allows the device SP3282EB 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.