February 1996
DS7831/DS8831/DS7832/DS8832
Dual TRI-STATE Line Driver
É
General Description
Features
Y
Y
Y
Y
Y
Series 54/74 compatible
Through simple logic control, the DS7831/DS8831,
DS7832/DS8832 can be used as either a quad single-end-
ed line driver or a dual differential line driver. They are spe-
cifically designed for party line (bus-organized) systems.
17 ns propagation delay
Very low output impedanceÐhigh drive capability
40 mA sink and source currents
The DS7832/DS8832 does not have the V clamp diodes
CC
found on the DS7831/DS8831.
Gating control to allow either single-ended or differen-
tial operation
The DS7831 and DS7832 are specified for operation over
a
125 C military temperature range. The
Y
High impedance output state which allows many out-
puts to be connected to a common bus line
b
DS8831 and DS8832 are specified for operation over the
the
55 C to
§
§
a
0 C to 70 C temperature range.
§
§
Connection and Logic Diagram
Dual-In-Line Package
Order Number DS8831N, DS8832J or DS8832N
See NS Package Number J16A or N16A
For Complete Military 883 Specificatons,
See RETS Data Sheet.
Order Number DS7831J/883, DS7831W/883,
DS7832J/883 or DS7832W/883
See NS Package Number J16A or W16A
TL/F/5800–1
Top View
Truth Table (Shown for A Channels Only)
Differential/
‘‘A’’ Output Disable
Single-Ended
Mode Control
Input A1
Output A1
Input A2
Output A2
Logical ‘‘1’’ or Same as Logical ‘‘1’’ or Same as
Logical ‘‘0’’ Input A1 Logical ‘‘0’’ Input A2
Logical ‘‘1’’ or Opposite of Logical ‘‘1’’ or Same as
0
0
0
0
0
0
X
1
1
X
Logical ‘‘0’’
Input A1
Logical ‘‘0’’
Input A2
High
Impedance
State
High
Impedance
State
1
X
1
X
X
X
X
X
e
X
Don’t Care
TRI-STATEÉ is a registered trademark of National Semiconductor Corp.
C
1996 National Semiconductor Corporation
TL/F/5800
RRD-B30M36/Printed in U. S. A.
http://www.national.com