SN75ALS057DWR Datasheet, PDF (12/22 Pages) Texas Instruments – TRAPEZOIDAL-WAVEFORM INTERFACE BUS TRANSCEIVERS

SN75ALS056, SN75ALS057
TRAPEZOIDAL-WAVEFORM INTERFACE BUS TRANSCEIVERS
SLLS028G – AUGUST 1987 – REVISED JUNE 1998
PARAMETER MEASUREMENT INFORMATION
VI(T/R)
VI(An, _Bn)
15 pF
5V
390 Ω
S1
SN75ALS056
S2
(Bn,An)
VL
RL1
RL2
VO
CL (includes jig capacitance)
1.6 kΩ
VI(T/R) _{3 V}
0
VO(Bn)
VO(An)
VO(An)
TEST CIRCUIT
1.5 V
tPHL3
tPLZ1
tPHZ1
tPLH3
1.55 V
tPZL1
0.5 V
tPZH1
0.5 V
1.5 V
1.55 V
1.5 V
1.5 V
S1 Closed
S2 Open
S1 Open
S2 Closed
VOLTAGE WAVEFORMS
NOTE A: tr = tf ≤ 5 ns from 10% to 90%
Figure 3. Propagation Delay From T/R to An or Bn Test Circuit and Voltage Waveforms
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