DM74LS85N Fairchild Semiconductor, DM74LS85N Datasheet

IC COMPARATOR MAGNITUDE 4B 16DIP

DM74LS85N

Manufacturer Part Number
DM74LS85N
Description
IC COMPARATOR MAGNITUDE 4B 16DIP
Manufacturer
Fairchild Semiconductor
Series
74LSr
Type
Magnitude Comparatorr
Datasheet

Specifications of DM74LS85N

Number Of Bits
4
Delay Time - Propagation
17ns
Current - Supply
10mA
Voltage - Supply
4.5 V ~ 5.25 V
Operating Temperature
0°C ~ 70°C
Package / Case
16-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
74LS85
74LS85N
© 2000 Fairchild Semiconductor Corporation
DM74LS85M
DM74LS85N
DM74LS85
4-Bit Magnitude Comparator
General Description
These 4-bit magnitude comparators perform comparison of
straight binary or BCD codes. Three fully-decoded deci-
sions about two, 4-bit words (A, B) are made and are exter-
nally available at three outputs. These devices are fully
expandable to any number of bits without external gates.
Words of greater length may be compared by connecting
comparators in cascade. The A
puts of a stage handling less-significant bits are connected
to the corresponding inputs of the next stage handling
more-significant bits. The stage handling the least-
significant bits must have a high-level voltage applied to
the A
only a two-gate-level delay to reduce overall comparison
times for long words.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Order Number
B input. The cascading path is implemented with
Package Number
M16A
N16E
B, A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
B, and A
DS006379
B out-
Features
Typical power dissipation 52 mW
Typical delay (4-bit words) 24 ns
Package Description
August 1986
Revised March 2000
www.fairchildsemi.com

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DM74LS85N Summary of contents

Page 1

... Package Number DM74LS85M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74LS85N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. ...

Page 2

Function Table Comparing Inputs A3, B3 A2 ...

Page 3

Absolute Maximum Ratings Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V HIGH Level Input Voltage IH V LOW Level Input Voltage IL I HIGH Level Output ...

Page 4

Switching Characteristics and Symbol Parameter t Propagation Delay Time PLH LOW-to-HIGH Level Output t Propagation Delay Time PHL HIGH-to-LOW Level Output t Propagation Delay Time PLH A LOW-to-HIGH Level Output t Propagation ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A 5 www.fairchildsemi.com ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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