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SP3483

+3.3V Low Power Slew Rate Limited Half-Duplex RS-485 Transceiver

Signal Processing Technologies 

TMIN to TMAX and VCC = +3.3V ± 5% unless otherwise noted.

PARAMETERS

MIN. TYP.

RECEIVER

AC Characteristics

Maximum Data Rate

250

Receiver Input to Output, tPLH 35

70

Receiver Input to Output, tPHL 35

70

Differential Receiver Skew

50

Receiver Enable to

Output Low

45

Receiver Enable to

Output High

45

Receiver Disable from Low

45

Receiver Disable from High

45

ELECTRICAL CHARACTERISTICS

MAX. UNITS CONDITIONS

kbps RE = 0V, DE = 0V

120

ns Figures 6 and 11

120

ns Figures 6 and 11

ns

tRSKEW = tRPHL - tRPLH

Figures 6 and 11

70

ns Figures 7 and 12; S1 closed, S2 open

70

ns Figures 7 and 12; S2 closed, S1 open

70

ns Figures 7 and 12; S1 closed, S2 open

70

ns Figures 7 and 12; S2 closed, S1 open

Shutdown Timing

Time to Shutdown

50

Driver Enable from Shutdown

to Output High

Driver Enable from Shutdown

to Output Low

Receiver Enable from

Shutdown to Output High

Receiver Enable from

Shutdown to Output Low

POWER REQUIREMENTS

Supply Current

No Load

Shutdown Mode

200

600

ns RE = 5V, DE = 0V

2000 ns Figures 4 and 10

2000 ns Figures 5 and 10

2500 ns Figures 7 and 12; S2 closed, S1 open

2500 ns Figures 7 and 12; S1 closed, S2 open

350

650

µA RE, DI = 0V or VCC; DE = VCC

250

µA RE = 0V, DI = 0V or VCC; DE = 0V

10

µA DE = 0V, RE=VCC

Date: 6/23/04

SP3483 Low Power Slew Rate Limited Half-Duplex RS485 Transceivers

3

© Copyright 2004 Sipex Corporation

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