AM26LS31
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS114G – JANUARY 1979 – REVISED FEBRUARY 2002
switching characteristics, V
CC
= 5 V, T
A
= 25°C (see Figure 1)
PARAMETER
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation delay time, low-to-high-level output
Propagation delay time, high-to-low-level output
Output enable time to high level
Output enable time to low level
Output disable time from high level
Output disable time from low level
Output-to-output skew
TEST CONDITIONS
CL = 30 pF
pF,
CL = 30 pF
CL = 10 pF
pF,
CL = 30 pF,
S1 and S2 open
RL = 75
Ω
RL = 180
Ω
S1 and S2 closed
S1 and S2 open
MIN
TYP
14
14
25
37
21
23
1
MAX
20
20
40
45
30
35
6
UNIT
ns
ns
ns
ns
PARAMETER MEASUREMENT INFORMATION
Input A
(see Notes B
and C)
Test Point
VCC
180
Ω
S1
From Output
Under Test
CL
(see Note A)
75
Ω
S2
tPHL
Output Z
PROPAGATION DELAY TIMES AND SKEW
1.5 V
VOL
TEST CIRCUIT
Output Y
Skew
Skew
tPLH
VOH
1.5 V
VOL
3V
1.3 V
tPLH
1.3 V
0V
tPHL
VOH
Enable G
(see Note D)
Enable G
3V
1.5 V
tPZL
See Note D
tPLZ
≈4.5
V
1.5 V
0.5 V
tPZH
tPHZ
0.5 V
VOH
≈1.5
V
≈0
V
S1 Closed
S2 Closed
1.5 V
0V
S1 Closed
S2 Closed
≈1.5
V
VOL
Waveform 1
(see Note E)
S1 Closed
S2 Open
Waveform 2
(see Note E)
S1 Open
S2 Closed
1.5 V
ENABLE AND DISABLE TIME WAVEFORMS
NOTES: A.
B.
C.
D.
E.
CL includes probe and jig capacitance.
All input pulses are supplied by generators having the following characteristics: PRR
≤
1 MHz, ZO
≈
50
Ω,
tr
≤
15 ns, tf
≤
6 ns.
When measuring propagation delay times and skew, switches S1 and S2 are open.
Each enable is tested separately.
Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
Figure 1. Test Circuit and Voltage Waveforms
4
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
ETC [ ETC ]
