Datasheet

SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic symbol
†
4Y
3Y
2Y
1Y
13
12
10
9
5
4
2
4B
4A
3B
3A
2B
2A
1A
11
8
6
3
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
&
logic diagram (positive logic)
4Y
3Y
2Y
1Y
13
12
10
9
5
4
2
4B
4A
3B
3A
2B
2A
1A
11
8
6
3
positive logic
Y = A
(driver 1)
Y = AB
or A + B (drivers 2 through 4)
schematics of inputs and outputs
EACH OUTPUT
‡
GND
V
CC–
74 Ω
160 Ω
72 Ω
Output
V
CC+
(driver 1 only)
Internal
1.4-V Ref
to GND
V
CC+
Input A
Input B
(drivers 2, 3
and 4 only)
GND
V
CC–
EACH INPUT
‡
All resistor values shown are nominal.