IL34C87
CMOS Quad TRISTATE Differential Line Driver.
General Description
The IL34C87T is a quad differential line driver
designed for digital data transmission over balanced
lines. The IL34C87T meets all the requirements of
EIA standard RS-422 while retaining the low power
characteristics of CMOS. This enables the
construction of serial and terminal interfaces while
maintaining minimal power consumption. The
IL34C87T accepts TTL or CMOS input levels and
translates these to RS-422 output levels. This part
uses special output circuitry that enables the
individual drivers to power down without loading
down the bus. This device has separate enable
circuitry for each pair of the four drivers. All inputs
are protected against damage due to electrostatic
discharge by diodes to V
CC
and ground.
Pinning
Pin
01
02
03
04
Designation
Of microcircuit in package
IL34C86N Plastic DIP
IL34C86D SOIC
T
A
from minus 40 to plus 85
°C
Symbol
A
A1
A2
En A/B
05
06
07
08
09
10
11
12
B2
B1
B
GND
C
C1
C2
En C/D
13
14
15
16
D2
D1
D
V
CC
Description
Input of driver A
Output
А
Inverted output
А
input of switching outputs
of A and B receivers into
the third state
Inverted output B
Output B
Input of driver B
General pin
Input of driver C
Output C
Inverted output C
input of switching outputs
of C and D receivers into
the third state
Inverted output B
Output B
Input of driver B
Pin of power supply
Pin configuration.
A
01
16
15
V
CC
D
A1 02
A2 03
En A/B 04
B2
05
14 D1
13
D2
12 En C/D
11 C2
10 C1
09
C
B1 06
B
07
GND 08
Features
•
TTL input compatible
•
Typical propagation delays: 6 ns
•
Typical output skew: 0.5 ns
•
Outputs won’t load line when V
CC
= 0V
•
Meets the requirements of EIA standard
RS-422
•
Operation from single 5V supply
•
TRI-STATE outputs for connection to
system buses
•
Low quiescent current
•
Available in surface mount
1
INTEGRAL [ INTEGRAL CORP. ]
