SP3221E Intelligent +3.0V to +5.5V RS-232 Transceiver FEATURES Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply EN 1 16 SHDN Interoperable with EIA/TIA-232 and adheres C1+ 2 15 VCC to EIA/TIA-562 down to a +2.7V power 3 V+ 14 GND source AUTO ON-LINE circuitry automatically C1- 4 SP3221E 13 T1OUT wakes up from a 1A typical shutdown C2+ 5 12 ONLINE Minimum 250kbps data rate under load 6 11 Regulated charge pump yields stable C2- T1IN RS-232 outputs regardless of V variations CC V- 7 10 STATUS ESD specifications: R1IN 8 9 R1OUT +15KV Human Body Model +15KV IEC61000-4-2 Air Discharge +8KV IEC61000-4-2 Contact Discharge DESCRIPTION The SP3221E is an RS-232 transceiver solution intended for portable applications such as notebook and hand held computers. This device uses an internal high-efficiency, charge-pump power supply that requires only 0.1F capacitors in 3.3V operation. This charge pump and Exar s driver architecture allow the SP3221E to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3221E is a 1-driver/1-receiver device ideal for laptop/notebook computer and PDA applications. The SP3221E is offered in 16 pin TSSOP and SSOP packages. The AUTO ON-LINE feature allows the device to automaticallywake-u during a shut- down 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. SELECTION TABLE Device Power RS- 232 RS-232 AUTO ON-LINE TTL Data Rate Supplies Drivers Receivers 3-state (kbps) SP3221E +3.0V to +5.5V 1 1 YES YES 250 SP3221E 201 031920 1ABSOLUTE MAXIMUM RATINGS Output Voltages These are stress ratings only and functional operation TxOUT.............................................................+13.2V of the device at these ratings or any other above those RxOUT, STATUS.......................-0.3V to (V + 0.3V) CC indicated in the operation sections of the specifications Short-Circuit Duration below is not implied. Exposure to absolute maximum TxOUT.....................................................Continuous rating conditions for extended periods of time may Storage Temperature......................-65C to +150C affect reliability and cause permanent damage to the device. Power Dissipation per package V .......................................................-0.3V to +6.0V CC 16-pin TSSOP V+ (NOTE 1).......................................-0.3V to +7.0V Theta-JA.................................................100.4C/W V- (NOTE 1)........................................+0.3V to -7.0V Theta-JC.................................................19C/W V+ + V- (NOTE 1)...........................................+13V I (DC V or GND current).........................+100mA CC CC 16-pin SSOP Input Voltages Theta-JA.................................................87C/W TxIN, ONLINE, Theta-JC.................................................26C/W SHUTDOWN, EN......................-0.3V to VCC + 0.3V RxIN...................................................................+15V NOTE 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V. ELECTRICAL CHARACTERISTICS Unless otherwise noted, the following specifications apply for V = +3.0V to +5.5V with T = T to T . CC AMB MIN MAX Typical values apply at V = +3.3V or +5.0V and T = 25C (Note 2). CC AMB PARAMETER MIN. TYP. MAX. UNITS CONDITIONS DC CHARACTERISTICS Supply Current, 1.0 10 A RxIN open, ONLINE = GND, AUTO ON-LINE SHUTDOWN = Vcc, TxIN = Vcc or GND, Vcc = +3.3V, T = +25C AMB Supply Current, Shutdown 1.0 10 A SHUTDOWN = GND, TxIN = Vcc or GND, Vcc = +3.3V, T = +25C AMB Supply Current, 0.3 1.0 mA ONLINE = SHUTDOWN = Vcc, No AUTO ON-LINE Disabled Load, Vcc = +3.3V, T = +25C AMB LOGIC INPUTS AND RECEIVER OUTPUT Input Logic Threshold Vcc = 3.3V or 5.0V, LOW 0.8 V TxIN, EN, SHUTDOWN, ONLINE HIGH 2.0 Input Leakage Current +/-0.01 +/-1.0 A TxIN, EN, ONLINE, SHUTDOWN, T = +25C, Vin = 0V to Vcc AMB Output Leakage Current +/-0.05 +/-10 A Receiver disabled, Vout = 0V to Vcc Output Voltage LOW 0.4 V I = 1.6mA OUT Output Voltage HIGH Vcc - 0.6 Vcc - 0.1 V I = -1.0mA OUT NOTE 2: C1 - C4 = 0.1F, tested at 3.3V 10%. C1 = 0.047F, C2-C4 = 0.33F, tested at 5V10%. SP3221E 201 031920 2