1.6µA, RS-485/RS-422, Half-Duplex,

Differential Transceiver for Battery-Powered Systems

_______________________________________________________________________________________

3

DC ELECTRICAL CHARACTERISTICS (continued)

SWITCHING CHARACTERISTICS

Note 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to device

ground unless otherwise noted.

Note 2:

Note 3: Maximum and minimum current levels apply to peak current just prior to foldback-current limiting.

0

CONDITIONS

-20

50

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

mA

Receiver Output Short-Circuit

Current

CONDITIONS

µs

0.025

Driver Output Skew

µs

Driver Input to Output

Propagation Delay

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

1.40

2.00

µs

0.75

1.34

1.75

Driver Rise or Fall Time

µs

1.5

6.00

Driver Enable Time to Output

High

µs

0.86

4.00

Driver Enable Time to Output

Low

µs

0.4

1.5

Driver Disable Time from Low

µs

0.6

1.5

Driver Disable Time from High

µs

6.4

12

Receiver Input to Output

Propagation Delay

Figures 7 and 9,

µs

1.2

Differential Receiver Skew

kbps

64

Data Rate

ns

85

500

Receiver Enable Time to

Output High

ns

50

200

Receiver Disable Time from Low

ns

35

200

Receiver DisableTime from High

-40

110

µA

Supply Current

50

60

DE = GND

1.6

2

83

100

DE = GND

2.8

4

ns

70

500

Receiver Enable Time to

Output Low

5.2

12