SP3232EEN Integrated Circuit Chip True +3.0V to +5.5V RS-232 Transceivers

Product Specification

SP3222E/3232E

True +3.0V to +5.5V RS-232 Transceivers

■ Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply

■ Minimum 120Kbps Data Rate Under Full Load

■ 1µA Low-Power Shutdown with Receivers Active (SP3222E)

■ Interoperable with RS-232 down to +2.7V power source

■ Enhanced ESD Specifications:

  ±15kV Human Body Model

  ±15kV IEC1000-4-2 Air Discharge

  ±8kV IEC1000-4-2 Contact Discharge

DESCRIPTION

The SP3222E/3232E series is an RS-232 transceiver solution intended for portable or handheld applications such as notebook or palmtop computers. The SP3222E/3232E series has a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump allows the SP3222E/3232E series to deliver true RS-232 performance from a single power supply ranging from +3.3V to +5.0V. The SP3222E/3232E are 2-driver/2-receiver devices. This series is ideal for portable or hand-held applications such as notebook or palmtop computers. The ESD tolerance of the SP3222E/3232E devices are over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The SP3222E device has a low-power shutdown mode where the devices' driver outputs and charge pumps are disabled. During shutdown, the supply current falls to less than 1µA.

ABSOLUTE MAXIMUM RATINGS

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 V_CC or GND current).................................±100mA

Input Voltages

TxIN, EN ................................................... -0.3V to +6.0V

RxIN ..........................................................................±15V

Output Voltages

TxOUT ......................................................................±15V

RxOUT ........................................... -0.3V to (V_CC + 0.3V)

Short-Circuit Duration

TxOUT ............................................................ Continuous

Storage Temperature .............................. -65°C to +150°C

Power Dissipation Per Package

20-pin SSOP (derate 9.25mW/°C above +70°C) ..... 750mW

18-pin PDIP (derate 15.2mW/°C above +70°C).... 1220mW

18-pin SOIC (derate 15.7mW/°C above +70°C) ... 1260mW

20-pin TSSOP (derate 11.1mW/°C above +70°C) .. 890mW

16-pin SSOP (derate 9.69mW/°C above +70°C) ..... 775mW

16-pin PDIP (derate 14.3mW/°C above +70°C).... 1150mW

16-pin Wide SOIC (derate 11.2mW/°C above +70°C) 900mW

16-pin TSSOP (derate 10.5mW/°C above +70°C) .. 850mW

16-pin nSOIC (derate 13.57mW/°C above +70°C) .. 1086mW

NOTE 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise noted, the following performance characteristics apply for VCC = +3.3V, 120kbps data rates, all drivers loaded with 3kΩ, 0.1µF charge pump capacitors, and TAMB = +25°C.

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