TL/F/5816
DS1631/DS3631/DS1632/DS3632/DS1633/DS3633/DS1634/DS3634
CMOS Dual Peripheral Drivers
July 1992
DS1631/DS3631/DS1632/DS3632/DS1633/DS3633/
DS1634/DS3634 CMOS Dual Peripheral Drivers
General Description
The DS1631 series of dual peripheral drivers was designed
to be a universal set of interface components for CMOS
circuits.
Each circuit has CMOS compatible inputs with thresholds
that track as a function of V
CC
(approximately (/2 VCC). The
inputs are PNPs providing the high impedance necessary
for interfacing with CMOS.
Outputs have high voltage capability, minimum breakdown
voltage is 56V at 250 mA.
The outputs are Darlington connected transistors. This allows high current operation (300 mA max) at low internal
V
CC
current levels since base drive for the output transistor
is obtained from the load in proportion to the required loading conditions. This is essential in order to minimize loading
on the CMOS logic supply.
Typical V
CC
e
5V power is 28 mW with both outputs ON.
V
CC
operating range is 4.5V to 15V.
The circuit also features output transistor protection if the
V
CC
supply is lost by forcing the output into the high impe-
dance OFF state with the same breakdown levels as when
V
CC
was applied.
Pin-outs are the same as the respective logic functions
found in the following popular series of circuits: DS75451,
DS75461. This feature allows direct conversion of present
systems to the MM74C CMOS family and DS1631 series
circuits with great power savings.
The DS1631 series is also TTL compatible at V
CC
e
5V.
Features
Y
CMOS compatible inputs
Y
High impedance inputs PNP’s
Y
High output voltage breakdown 56V min
Y
High output current capability 300 mA max
Y
Same pin-outs and logic functions as DS75451 and
DS75461 series circuits
Y
Low VCCpower dissipation (28 mW both outputs ‘‘ON’’
at 5V)
Connection Diagrams (Dual-In-Line and Metal Can Packages)
TL/F/5816– 1
Top View
Order Number DS1631J-8
or DS3631N
TL/F/5816– 2
Top View
Order Number DS1632J-8
or DS3632N
TL/F/5816– 3
Top View
Order Number DS1633J-8
or DS3633N
TL/F/5816– 4
Top View
Order Number DS1634J-8
or DS3634N
See NS Package Number J08A or N08E
TL/F/5816– 5
Top View
(Pin 4 is electrically connected to the
case.)
Order Number DS1631H
TL/F/5816– 6
Top View
(Pin 4 is electrically connected to the
case.)
Order Number DS1632H
TL/F/5816– 7
Top View
(Pin 4 is electrically connected to the
case.)
Order Number DS1633H
TL/F/5816– 8
Top View
(Pin 4 is electrically connected to the
case.)
Order Number DS1634H
See NS Package Number H08C
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.