Order this document by MC3487/D
Quad Line Driver with
Three-State Outputs
Motorola
i
s Quad EIA–422 Driver features four independent driver chains
which comply with EIA Standards for the Electrical Characteristics of
Balanced Voltage Digital Interface Circuits. The outputs are three–state
structures which are forced to a high impedance state when the appropriate
output control pin reaches a logic zero condition. All input pins are PNP
buffered to minimize input loading for either logic one or logic zero inputs. In
addition, internal circuitry assures a high impedance output state during the
transition between power up and power down. A summary of MC3487
features include:
•
Four Independent Driver Chains
MC3487
QUAD EIA–422 LINE DRIVER
WITH THREE–STATE
OUTPUTS
SEMICONDUCTOR
TECHNICAL DATA
•
•
•
•
•
•
•
Three–State Outputs
PNP High Impedance Inputs (PIA Compatible)
Fast Propagation Times (Typical 15 ns)
TTL Compatible
Single 5.0 V Supply Voltage
Output Rise and Fall Times Less Than 20 ns
DS 3487 Provides Second Source
P SUFFIX
PLASTIC PACKAGE
CASE 648
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
Driver Block Diagram
PIN CONNECTIONS
Non–Inverting
Input A 1
2
Outputs A
3
A/B Control 4
5
Outputs B
6
Input B 7
Gnd 8
16
15
14
13
12
11
10
9
VCC
Input D
Outputs D
C/D Control
Outputs C
Input C
Input
Outputs
Inverting
Output
Control
TRUTH TABLE
Input
H
L
X
L
H
X
Z
=
=
=
=
Control Input
H
H
L
Non–Inverting Output
H
L
Z
Inverting Output
L
H
Z
Device
ORDERING INFORMATION
Operating
Temperature Range
TA = 0 to +70°C
Package
Plastic DIP
SO–16
Low Logic State
High Logic State
Irrelevant
Third–State (High Impedance)
MC3487P
MC3487D
©
Motorola, Inc. 1995
MOTOROLA ANALOG IC DEVICE DATA
1
MOTOROLA [ MOTOROLA, INC ]
