4

10/16/02

SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers

© Copyright 2002 Sipex Corporation

SPECIFICATIONS (continued)

T

PARAMETERS

MIN.

TYP.

MAX.

UNITS

CONDITIONS

SP3494 RECEIVER

AC Characteristics

Maximum Data Rate

2.5

Mbps

RE = 0V, DE = 0V

Receiver Input to Output, t

PLH

40

70

100

ns

Figures 6 and 11

Receiver Input to Output, t

PHL

40

70

100

ns

Figures 6 and 11

Differential Receiver Skew

10

ns

t

Receiver Enable to

Output Low

35

60

ns

Figures 7 and 12; S

Receiver Enable to

Output High

35

60

ns

Figures 7 and 12; S

Receiver Disable from Low

35

60

ns

Figures 7 and 12; S

Receiver Disable from High

35

60

ns

Figures 7 and 12; S

SP3494 SHUTDOWN TIMING

Time to Shutdown

50

75

200

ns

RE = 3.3V, DE = 0V

Driver Enable from Shutdown

to Output High

65

150

ns

Figures 4 and 10

Driver Enable from Shutdown

to Output Low

65

150

ns

Figures 5 and 10

Receiver Enable from

Shutdown to Output High

50

200

ns

Figures 7 and 12; S

Receiver Enable from

Shutdown to Output Low

50

200

ns

Figures 7 and 12; S

SP3494 POWER REQUIREMENTS

Supply Current

No Load

1000

2000

µA

RE, DI = 0V or V

800

1500

µA

RE = 0V, DI = 0V or V

Shutdown Mode

10

µA

DE = 0V, RE=V

CC