Electrical Characteristics (Notes 2, 4) (Continued)
Over recommended Supply Voltage and Operating Temperature ranges, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
DEVICE CHARACTERISTICS
VIH
VIL
High Level Input Voltage
DE ,
RE ,
or
2.0
VCC
0.8
20
V
Low Level Input Voltage
High Level Input Current
Low Level Input Current
Input Clamp Voltage
Output Low Voltage
Supply Current
GND
V
IIH
VIH = 2.4V
VIL = 0.4V
µA
µA
V
DI
IIL
−100
−1.5
60
VCL
ICC
ICCR
ICCD
ICCX
ICL = −18 mA
−0.7
39
DE = 0V, RE = 0V, DI = 0V
DE = 3V, RE = 0V, DI = 0V
DE = 0V, RE = 3V, DI = 0V
DE = 3V, RE = 3V, DI = 0V
mA
mA
mA
mA
24
50
(No Load)
40
75
27
45
Switching Characteristics (Note 4)
Over recommended Supply Voltage and Operating Temperature ranges, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
DRIVER CHARACTERISTICS
tPLHD
tPHLD
tSKD
tr
Diff. Prop. Delay Low to High
RL = 54Ω
8
8
17
19
2
60
60
10
60
60
85
85
60
60
60
60
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Diff. Prop. Delay High to Low
Diff. Skew (|tPLHD–tPHLD|)
Diff. Rise Time
CL = 50 pF
CD = 50 pF
(Figures 4, 5 )
11
11
22
25
25
30
16
11
tf
Diff. Fall Time
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Prop. Delay Low to High
Prop. Delay High to Low
Enable Time Z to High
Enable Time Z to Low
Disable Time High to Z
Disable Time Low to Z
RL = 27Ω, CL = 15 pF
(Figures 6, 7 )
RL = 110Ω
CL = 50 pF
(Figure 8 – Figure 11 )
RECEIVER CHARACTERISTICS
tPLH
tPHL
tSK
Prop. Delay Low to High
Prop. Delay High to Low
Skew (|tPLH–tPHL|)
VID = −1.5V to +1.5V
CL = 15 pF
15
15
37
43
6
90
90
15
60
60
60
60
ns
ns
ns
ns
ns
ns
ns
(Figures 13, 14 )
CL = 15 pF
tPZH
tPZL
tPHZ
tPLZ
Enable Time Z to High
Enable Time Z to Low
Disable Time High to Z
Disable Time Low to Z
12
28
20
10
(Figures 15, 16 )
Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of “Electrical Characteristics” specify conditions for device operation.
Note 2: Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground unless otherwise speci-
fied.
Note 3: ∆ |V | and ∆ |V | are changes in magnitude of V and V , respectively, that occur when the input changes state.
T1 OS T1 OS
Note 4: All typicals are given for V
= 5.0V and T = +25˚C.
A
CC
Note 5: Threshold parameter limits specified as an algebraic value rather than by magnitude.
Note 6: Hysteresis defined as V = V − V
.
HST TH TL
Note 7:
I
includes the receiver input current and driver TRI-STATE leakage current.
IN
3
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