Datasheet
SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over operating free-air temperature range, V
CC+
= 12 V, V
CC–
= –12 V
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
CC+
= 5 V,
4
V
OH
High level out
p
ut voltage
V
IL
=08V
R
L
=3kΩ
CC+
,
V
CC–
= –5 V
4
V
V
OH
High
-
le
v
el
o
u
tp
u
t
v
oltage
V
IL
=
0
.
8
V
,
R
L
=
3
kΩ
V
CC+
= 12 V,
10
V
CC+
,
V
CC–
= –12 V
10
V
CC+
= 5 V,
4
V
OL
Low-level output voltage
V
IH
=2V
R
L
=3kΩ
CC+
,
V
CC–
= –5 V
–
4
V
V
OL
g
(see Note 2)
V
IH
=
2
V
,
R
L
=
3
kΩ
V
CC+
= 12 V,
10
V
CC+
,
V
CC–
= –12 V
–
10
I
IH
High-level input current V
I
= 5 V 10 µA
I
IL
Low-level input current V
I
= 0 –10 µA
I
OS(H)
High-level short-circuit
V
I
=08V
V
O
=0or V
CC
55
10
19 5
mA
I
OS(H)
g
output current
‡
V
I
=
0
.
8
V
,
V
O
=
0
or
V
CC–
–
5
.
5
–
10
–
19
.
5
mA
I
OS(L)
Low-level short-circuit
V
I
=2V
V
O
=0or V
CC
55
10
19 5
mA
I
OS(L)
output current
‡
V
I
=
2
V
,
V
O
=
0
or
V
CC+
5
.
5
10
19
.
5
mA
r
O
Output resistance, power off V
CC+
= 0, V
CC–
= 0, V
I
= –2 V to 2 V 300 Ω
V
CC+
= 5 V,
V
CC
–
= – 5 V
,
All in
p
utsat2Vor08V
90
160
I
CC
Su
pp
ly current from V
CC
CC+
,
No load
V
CC–
5
V,
All
inp
u
ts
at
2
V
or
0
.
8
V
90
160
µA
I
CC+
S
u
ppl
y
c
u
rrent
from
V
CC+
V
CC+
= 12 V,
V
CC
–
= –12 V
,
All in
p
utsat2Vor08V
95
160
µ
A
CC+
,
No load
V
CC–
12
V,
All
inp
u
ts
at
2
V
or
0
.
8
V
95
160
V
CC+
= 5 V,
V
CC
–
= – 5 V
,
All in
p
utsat2Vor08V
90
160
I
CC
Su
pp
ly current from V
CC
CC+
,
No load
V
CC–
5
V,
All
inp
u
ts
at
2
V
or
0
.
8
V
–
90
–
160
µA
I
CC–
S
u
ppl
y
c
u
rrent
from
V
CC–
V
CC+
= 12 V,
V
CC–
= –12
All in
p
utsat2Vor08V
95
160
µ
A
CC+
No load
CC
All
inp
u
ts
at
2
V
or
0
.
8
V
–
95
–
160
†
All typical values are at T
A
= 25°C.
‡
Not more than one output should be shorted at a time.
NOTE 2: The algebraic convention, in which the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic
levels only; e.g., if –4 V is a maximum, the typical value is a more negative voltage.
switching characteristics, V
CC+
= 12 V, V
CC–
= –12 V, T
A
= 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
Propagation delay time, low- to high-level output
§
R
L
= 3 kΩ, C
L
= 15 pF,
3 µs
t
PHL
Propagation delay time, high- to low-level output
§
L
,
See Figure 1
L
,
3.5 µs
t
TLH
Transition time, low- to high-level output
¶
0.53 3.2 µs
t
THL
Transition time, high- to low-level output
¶
0.53 3.2 µs
t
TLH
Transition time, low- to high-level output
#
R
L
= 3 kΩ to 7 kΩ, C
L
= 2500 pF,
1.5 µs
t
THL
Transition time, high- to low-level output
#
L
,
See Figure 1
L
,
1.5 µs
SR Output slew rate
§
R
L
= 3 kΩ to 7 kΩ, C
L
= 15 pF 6 15 30 V/µs
§
Measured at the 50% level
¶
Measured between the 10% and 90% points on the output waveform
#
Measured between the 3-V and –3-V points on the output waveform (EIA/TIA-232-E conditions), all unused inputs tied either high or low