SN75ALS085

LAN ACCESS UNIT INTERFACE DUAL DRIVER/RECEIVER

SLLS054D – APRIL 1989 – REVISED OCTOBER 2001

8

POST OFFICE BOX 655303

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (continued)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

‡

TXO shorted to TXO,

Current measured in short

150

‡

TXO at 0 V,

TXO is open,

Current measured at TXO

150

‡

TXO is open,

TXO at 0,

Current measured at TXO

150

Driver fault condition current‡

TXO at 0 V,

TXO at 0 V,

Current measured at TXO and TXO

150

mA

TXO at 16 V,

TXO is open,

Current measured at TXO

150

TXO is open,

TXO at 16 V,

Current measured at TXO

150

TXO at 16 V,

TXO at 16 V,

Current measured at TXO and TXO

150

‡

RXI shorted to RXI,

Current measured in short

10

‡

RXI at 0 V,

RXI is open,

Current measured at RXI

3

‡

RXI is open,

RXI at 0 V,

Current measured at RXI

3

Receiver fault condition current‡

RXI at 0 V,

RXI at 0 V,

Current measured at RXI and RXI

3

mA

RXI at 16 V,

RXI at open,

Current measured at RXI

10

RXI at open,

RXI at 16 V,

Current measured at RXI

10

RXI at 16 V,

RXI at 16 V,

Current measured at RXI and RXI

10

‡ Fault conditions should be measured on only one channel at a time.

switching characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

driver

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

TEST CONDITIONS

MIN

MAX

UNIT

tPLH

Propagation delay time,

low-to-high level output

TXI

TXO, TXO

TXEN at 2 V,

See Figure 3

15

ns

tPHL

Propagation delay time,

high-to-low level output

TXI

TXO, TXO

TXEN at 2 V,

See Figure 3

15

ns

tPIL

Propagation delay time,

idle-to-low level output

TXI

TXO, TXO

TXEN at 2 V,

See Figure 4

25

ns

tPIL

Propagation delay time,

idle-to-low level output

TXEN

TXO, TXO

TXI at 3.2 V,

See Figure 5

25

ns

tw

Output pulse duration, from

low-to-high level to 70% output level

TXO, TXO

TXEN at 2 V,

See Figure 6

260

8000

ns

VOD(U)

Driver output differential

undershoot voltage

TXI

TXO, TXO

TXEN at 2 V,

See Figure 6

– 100

mV

tsk

Driver caused signal skew

tPLH – tPHL

TXI

TXO, TXO

TXEN at 2 V,

See Figure 3

±3

ns

tr

Rise time, TXO, TXO

TXEN at 2 V,

See Figure 3

1

5

ns

tf

Fall time, TXO, TXO

TXEN at 2 V,

See Figure 3

1

5

ns