SN75ALS056, SN75ALS057

TRAPEZOIDAL-WAVEFORM INTERFACE BUS TRANSCEIVERS

SLLS028G – AUGUST 1987 – REVISED JUNE 1998

10

POST OFFICE BOX 655303

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

temperature (unless otherwise noted) (continued)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

TEST CONDITIONS

SN75ALS057

DRIVER PLUS

RECEIVER

UNIT

()

()

MIN

MAX

tPLH6

Propagation delay time,

low-to-high-level output

Dn

Rn

RE at 0.8 V, TE at 0.8 V, RL1 = 390 Ω,

40

ns

tPHL6

Propagation delay time,

high-to-low-level output

Dn

Rn

L

RL2 = 1.6 kΩ,, CL = 30 pF, See Figure 7

40

ns

PARAMETER MEASUREMENT INFORMATION

VL

VO

(Bn)

SN75ALS056

or

SN75ALS057

RL1

Figure 1. Driver Low-Level-Output-Voltage Test Circuit