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 to 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.

+6.0V

-16V to +16V

Input Voltage at TTL input Pins

-0.3V to Vcc + 0.5V

Driver Output Voltage (from Ground)

-7.5V to +12.5V

Short Circuit Duration, TXout to GND

Continuous

Storage Temperature Range

-65°C to + 150°C

Lead Temperature (soldering, 10s)

+300°C

Power Dissipation 28-pin SOIC-W

(derate 17mW/°C above +70°C)

938mW

Power Dissipation 28-pin TSSOP

(derate 12mW/°C above +70°C)

657mW

SP337E

5

REV. 1.0.2

3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER

CAUTION:

ESD (Electrostatic Discharge) sensitive device. Permanent damage may occur on unconnected devices subject to high energy electrostatic fields. Unused

devices must be stored in conductive foam or shunts. Personnel should be properly grounded prior to handling this device. The protective foam should be

discharged to the destination socket before devices are removed.

ELECTRICAL CHARACTERISTICS

TYP.

DC CHARACTERISTICS

Supply Current (RS-232)

1.5

6.0

mA

No Load, RS232/RS485 = 0V

Supply Current (RS-485)

7.0

15

mA

No Load, RS232/RS485 = Vcc

Vcc Shutdown Current

(SP337EU only)

1.0

10.0

TXEN = 0V, RXEN = Vcc

(SP337EU only)

TRANSMITTER and LOGIC INPUT PINS: Pins 1, 2, 25, 26, 27, 28

Logic Input Voltage HIGH

2.0

V

Vcc = 3.3V

Logic Input Voltage HIGH

2.4

V

Vcc = 5.0V

Logic Input Voltage LOW

0.8

V

Logic Input Leakage Current

1.0

Input High (Vin = Vcc)

Logic Input Pull-up Current

15.0

Input Low (Vin = 0V)

Logic Input Hysteresis

0.5

V

RS-232 and RS-485/422 RECEIVER OUTPUTS: Pins 19, 20, 21, 22, 23

Receiver Output Voltage HIGH

Vcc-0.6

V

Receiver Output Voltage LOW

0.4

V