Datasheet
SN75176A
DIFFERENTIAL BUS TRANSCEIVER
SLLS100A – JUNE 1984 – REVISED MAY 1995
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
DRIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
IK
Input clamp voltage I
I
= –18 mA –1.5 V
V
OH
High level out
p
ut voltage
V
IH
= 2 V, V
IL
= 0.8 V,
37
V
V
OH
High
-
le
v
el
o
u
tp
u
t
v
oltage
IH
,
I
OH
= –33 mA
IL
,
3
.
7
V
V
OL
Low level out
p
ut voltage
V
IH
= 2 V, V
IL
= 0.8 V,
11
V
V
OL
Lo
w-
le
v
el
o
u
tp
u
t
v
oltage
IH
,
I
OH
= 33 mA
IL
,
1
.
1
V
|V
OD1
| Differential output voltage I
O
= 0 2V
OD2
V
|V
OD2
|
Differential out
p
ut voltage
R
L
= 100 Ω, See Figure 1 2 2.7
V
|V
OD2
|
Differential
o
u
tp
u
t
v
oltage
R
L
= 54 Ω, See Figure 1 1.5 2.4
V
∆|V
OD|
Change in magnitude of differential output voltage
‡
±0.2 V
V
OC
Common-mode output voltage
§
R
L
= 54 Ω or 100 Ω,
See Figure 1
3 V
∆|V
OC
|
Chan
g
e in ma
g
nitude of common-mode output
±02
V
∆|V
OC
|
gg
voltage
‡
±0
.
2
V
I
O
Out
p
ut current
Output disabled,
V
O
= 12 V 1
mA
I
O
O
u
tp
u
t
c
u
rrent
,
See Note 3
V
O
= – 7 V –0.8
mA
I
IH
High-level input current V
I
= 2.4 V 20 µA
I
IL
Low-level input current V
I
= 0.4 V –400 µA
V
O
= –7 V –250
I
OS
Short-circuit output current
V
O
= V
CC
250
mA
V
O
= 12 V 500
I
CC
Su
pp
ly current (total
p
ackage)
No load
Outputs enabled 35 50
mA
I
CC
S
u
ppl
y
c
u
rrent
(total
package)
No
load
Outputs disabled 26 40
mA
†
All typical values are at V
CC
= 5 V and T
A
= 25°C.
‡
∆|V
OD
| and ∆|V
OC
| are the changes in magnitude of V
OD
and V
OC
respectively, that occur when the input is changed from a high level to a low
level.
§
In ANSI Standard EIA/TIA-422-B, V
OC
, which is the average of the two output voltages with respect to GND, is called output offset voltage, V
OS
.
NOTE 3: This applies for both power on and off; refer to ANSI Standard EIA/TIA-422-B for exact conditions.
switching characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
d(OD)
Differential-output delay time
R
L
=60Ω
See Figure 3
40 60 ns
t
t(OD)
Differential-output transition time
R
L
=
60
Ω
,
See
Fig
u
re
3
65 95 ns
t
PZH
Output enable time to high level R
L
= 110 Ω, See Figure 4 55 90 ns
t
PZL
Output enable time to low level R
L
= 110 Ω, See Figure 5 30 50 ns
t
PHZ
Output disable time from high level R
L
= 110 Ω, See Figure 4 85 130 ns
t
PLZ
Output disable time from low level R
L
= 110 Ω, See Figure 5 20 40 ns