3243B

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, EN (SP3223BE)................................... -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 to +150
Power Dissipation per package
28-pin PDIP
(derate 16.0mW/above+70) ......................................1300mW
20-pin SSOP
(derate 9.25mW/above +70) ...................................... 750mW
20-pin TSSOP
(derate 11.1mW/above +70) .......................................900mW
28-pin SOIC
(derate 12.7mW/above +70) .................................... 1000mW
28-pin SSOP
(derate 11.2mW/above +70) ...................................... 900mW
28-pin TSSOP
(derate 11.1mW/above +70) .......................................900mW
32-pin MLPQ

The SP3223B and SP3243B products are RS-232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop computers. The SP3223B and SP3243B  use an internal high-efficiency, charge-pump power supply that requires only 0.1F capacitors in 3.3V operation. This charge pump and Sipex's driver architecture allow the SP3223B/3243B series to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3223B is a 2-driver/2-receiver device, and the SP3243B is a 3-driver/5-receiver device ideal for laptop/notebook computer and PDA applications. The SP3243B 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(R) feature allows the device 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 1A.