DS75176 National Semiconductor, DS75176 Datasheet - Page 3

• Manufacturer Part Number: DS75176
• Description: Multipoint RS-485/RS-422 Transceivers
• Manufacturer: National Semiconductor

I
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
OSR
Symbol
0˚C
PLH
PHL
r
f
ZH
ZL
LZ
HZ
PLH
PHL
ZL
ZH
LZ
HZ
Electrical Characteristics
Note 1: “Absolute Maximum Ratings” are those beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the device should
be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation.
Note 2: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified.
Note 3: All typicals are given for V
Note 4: Derate linearly at 5.56 mW/˚C to 650 mW at 70˚C.
Note 5: Derate linearly 6.11 mW/˚C to 400 mW at 70˚C.
Note 6: Differential - Input/Output bus voltage is measured at the noninverting terminal A with respect to the inverting terminal B.
Note 7: All worst case parameters for which note 7 is applied, must be increased by 10% for DS75176BT. The other parameters remain valid for −40˚C
Switching Characteristics
<
V
CC
+85˚C.
= 5.0V, T
T
A
Receiver Short-Circuit
Output Current
70˚C, 4.75V
Driver Input to Output
Driver Input to Output
Driver Rise Time
Driver Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
Receiver Input to Output
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
A
= 25˚C
Parameter
<
Parameter
V
CC
CC
<
= 5V and T
5.25V unless otherwise specified
A
= 25˚C.
(Notes 2, 3) (Continued)
R
C
R
C
( Figure 3 and Figure 5 )
C
Open
C
Open
C
Open
C
Open
C
S1 and S2 Closed
C
Open
C
Open
C
Open
C
Open
LDIFF
L1
LDIFF
L1
L
L
L
L
L
L
L
L
L
V
O
= 100 pF ( Figure 4 and Figure 6 ) S1
= 100 pF ( Figure 4 and Figure 6 ) S2
= 15 pF ( Figure 4 and Figure 6 ) S2
= 15 pF ( Figure 4 and Figure 6 ) S1
= 15 pF ( Figure 2 and Figure 7 )
= 15 pF ( Figure 2 and Figure 8 ) S2
= 15 pF ( Figure 2 and Figure 8 ) S1
= 15 pF ( Figure 2 and Figure 8 ) S2
= 15 pF ( Figure 2 and Figure 8 ) S1
= C
=C
= 0V
= 60
= 60
L2
L2
= 100 pF
= 100 pF
3
Conditions
Conditions
Min
Typ
Min Typ Max Units
−15
13
19
30
15
11
28
13
12
17
29
31
32
Max
100
200
22
22
18
18
60
30
37
37
20
20
32
35
www.national.com
−85
Units
<
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
mA
T
A