January 1992 DM93S41 4-Bit Arithmetic Logic Unit DM93S41 4-b

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

January 1992 DM93S41 4-Bit Arithmetic Logic Unit DM93S41 4-b

Datasheet Thumbnail

Top Searches for this datasheet

DM93S41 4-Bit Arithmetic Logic Unit
January 1992
DM93S41 4-Bit Arithmetic Logic Unit
DM93S41 4-bit arithmetic logic units perform possible logic operations variables variety arithmetic operations Subtract modes most important DM93S41 replacement 74181
Connection Diagram
Dual-In-Line Package Name Description Operand Inputs (Active LOW) Function Select Inputs Mode Control Input Carry Input Function Outputs (Active LOW) Comparator Output Carry Generate Output (Active LOW) Carry Propagate Output (Active LOW) Carry Output
9805
Order Number DM93S41N Package Number N24A
Logic Symbols
Active Operands Active High Operands
9805
9805
C1995 National Semiconductor Corporation
9805
RRD-B30M115 Printed
Absolute Maximum Ratings (Note)
Military Aerospace specified devices required please contact National Semiconductor Sales Office Distributors availability specifications Supply Voltage Input Voltage Operating Free Temperature Range DM93S Storage Temperature Range
Note ``Absolute Maximum Ratings'' those values beyond which safety device cannot guaranteed device should operated these limits parametric values defined ``Electrical Characteristics'' table guaranteed absolute maximum ratings ``Recommended Operating Conditions'' table will define conditions actual device operation
Recommended Operating Conditions
Symbol Parameter Supply Voltage High Level Input Voltage Level Input Voltage High Level Output Current Level Output Current Free Operating Temperature
DM93S41
Units
Electrical Characteristics over recommended operating free temperature range (unless otherwise noted)
Symbol ICCL Parameter Input Clamp Voltage High Level Output Voltage Level Output Voltage Input Current Input Voltage Conditions (Note S0-S3 Other Inputs Other Inputs
(Note
Units
High Level Input Current Level Input Current Short Circuit Output Current Supply Current
ICCH
Supply Current
Note typicals Note more than output should shorted time duration should exceed second
Switching Characteristics
(See Section waveforms load configurations) Symbol Parameter Conditions tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay 400X 280X Units
Functional Description
DM93S41 4-bit high speed parallel arithmetic logic unit (ALU) Controlled four Function Select inputs Mode Control input perform possible operations different arithmetic operations active HIGH active operands Function Table below lists these operations When Mode Control input HIGH internal carries inhibited device performs logic operations individual bits listed When Mode Control input carries enabled device performs arithmetic operations 4-bit words device incorporates full internal carry lookahead provides either ripple carry between devices using output carry lookahead between packages using signals (Carry Propagate) (Carry Generate) affected carry When speed requirements stringent DM93S41 used simple ripple carry mode connecting Carry output signal Carry input (Cn) next unit super high speed operation Schottky DM93S41 should used conjunction with carry lookahead circuit output from DM93S41 goes HIGH when four outputs HIGH used indicate logic equivalence over four bits when unit subtract mode output open-collector wired-AND with other outputs give comparison more than four bits signal also used with signal indicate Function Table lists arithmetic operations that performed without carry incoming carry adds each operation Thus select code LHHL generates minus minus complement notation) without carry generates minus when carry applied Because subtraction actually performed complementary addition complement) carry means borrow thus carry generated when there underflow carry generated when there underflow indicated used with either active inputs producing active outputs with active HIGH inputs producing active HIGH outputs either case table lists operations that performed operands labeled inside logic symbol
Function Table Mode Select Inputs Active Inputs Outputs Logic Arithmetic Logic Logic minus minus minus minus plus plus minus minus plus plus plus plus plus minus Active High Inputs Outputs Logic Arithmetic Logic Logic minus plus plus minus minus minus plus plus plus minus plus plus plus minus
Each shifted next more significant position Arithmetic operations expressed complement notation HIGH Voltage Level Voltage Level
9805
Logic Diagram
MODE TEST TABLE Function Inputs Input Under Test Other Input Same Apply None None None None None Apply None None None None None None None Other Data Input Apply Remaining Remaining None None Remaining Remaining Remaining Remaining Apply Remaining Remaining Remaining Remaining Remaining Remaining Remaining Remaining Output Under Test
Symbol
tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL
DIFF MODE TEST TABLE Function Inputs Input Under Test Other Input Same Apply None None None Apply None None None None Other Data Inputs Apply Remaining Remaining Remaining Remaining None None None Apply Remaining Remaining Remaining Remaining Remaining Remaining Remaining Output Under Test
Symbol
tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL
DIFF MODE TEST TABLE Function Inputs (Continued) Input Under Test Other Input Same Apply None None None None Apply None None None Other Data Inputs Apply None Remaining Remaining None None Apply Remaining Remaining Remaining Remaining Remaining None Output Under Test
Symbol
tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL
LOGIC MODE TEST TABLE Function Inputs Input Under Test Other Input Same Apply Apply None None Other Data Inputs Apply None None Apply Remaining Remaining Output Under Test
Symbol
tPLH tPHL tPLH tPHL
DM93S41 4-Bit Arithmetic Logic Unit
Physical Dimensions inches (millimeters)
24-Lead Molded Dual-In-Line Package Order Number DM93S41N Package Number N24A
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT NATIONAL SEMICONDUCTOR CORPORATION used herein Life support devices systems devices systems which intended surgical implant into body support sustain life whose failure perform when properly used accordance with instructions provided labeling reasonably expected result significant injury user
National Semiconductor Corporation 1111 West Bardin Road Arlington 76017 1(800) 272-9959 1(800) 737-7018
critical component component life support device system whose failure perform reasonably expected cause failure life support device system affect safety effectiveness
National Semiconductor Europe (a49) 0-180-530 Email cnjwge tevm2 Deutsch (a49) 0-180-530 English (a49) 0-180-532 Fran (a49) 0-180-532 Italiano (a49) 0-180-534
National Semiconductor Hong Kong 13th Floor Straight Block Ocean Centre Canton Tsimshatsui Kowloon Hong Kong (852) 2737-1600 (852) 2736-9960
National Semiconductor Japan 81-043-299-2309 81-043-299-2408
National does assume responsibility circuitry described circuit patent licenses implied National reserves right time without notice change said circuitry specifications

January 1992 DM93S41 4-Bit Arithmetic Logic Unit DM93S41 4-b

Top Searches for this datasheet

Other recent searches