DM93S41 4-Bit Arithmetic Logic Unit DM93S41 4-bit arithmetic logi

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DM93S41 4-Bit Arithmetic Logic Unit DM93S41 4-bit arithmetic logi

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DM93S41 4-Bit Arithmetic Logic Unit
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 54/74181.
Connection Diagram
Dual-In-Line Package
DS009805-1
Order Number DM93S41N Package Number N24A Name A0-A3, B0-B3 S0-S3 F0-F3 Cn+4 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
1998 Fairchild Semiconductor Corporation
DS009805
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Logic Symbols
Active Operands Active High Operands
DS009805-2
DS009805-3
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Absolute Maximum Ratings (Note
Supply Voltage Input Voltage: 5.5V
Operating Free Temperature Range DM93S Storage Temperature Range
+70°C -65°C +150°C
Recommended Operating Conditions
Symbol Supply Voltage High Level Input Voltage Level Input Voltage High Level Output Current Level Output Current Free Operating Temperature Parameter 4.75 DM93S41 5.25 Units
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.
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 High Level Input Current Level Input Current Short Circuit Output Current Supply Current Max, 2.7V Max, 0.5V (Note S0-S3 4.5V Other Inputs B0-B3 Other Inputs 4.5V
Note typicals 25°C. Note more than output should shorted time, duration should exceed second.
Conditions Min, Min, Min, Max, 5.5V
(Note
-1.2
Units
0.35 -1.6
-100
ICCH
Supply Current
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Switching Characteristics
+5.0V, +25°C (See Section waveforms load configurations) Symbol 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 Parameter Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay Propagation Delay
Conditions 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 5.0V
18.5 18.5
Units
Propagation Delay
Propagation Delay Propagation Delay
Propagation Delay
Propagation Delay
Functional Description
DM93S41 4-bit high speed parallel arithmetic logic unit (ALU). Controlled four Function Select inputs (S0-S3) Mode Control input (M), 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 LOW, carries enabled device performs arithmetic operations 4-bit words. device incorporates full internal carry lookahead provides either ripple carry between devices using Cn+4 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 (Cn+4) 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 Cn+4 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.
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Functional Description
(Continued)
indicated used with either active inputs producing active outputs with active HIGH inFunction Table Mode Select Inputs Logic Logic
puts producing active HIGH outputs. either case table lists operations that performed operands labeled inside logic symbol.
Active Inputs Outputs Logic Arithmetic (Note minus minus minus minus plus plus minus minus plus plus plus plus (Note plus minus Logic Logic
Active High Inputs Outputs Logic Arithmetic (Note minus plus plus minus minus minus plus plus plus minus plus (Note plus plus minus
HIGH Voltage Level Voltage Level Note Each shifted next more significant position Note Arithmetic operations expressed complement notation
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Logic Diagram
DS009805-4
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Logic Diagram
Input Symbol
(Continued)
TABLE MODE TEST Function Inputs: 4.5V, Other Input Same Apply 4.5V tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL None None None None None None Remaining Remaining Remaining Remaining None None None None None None None Apply None Apply 4.5V Remaining Remaining Remaining Remaining Remaining Remaining Remaining Remaining Remaining Remaining Apply Other Data Input Output Under Test
Under Test
TABLE DIFF MODE TEST Function Inputs: 4.5V,S0 Input Symbol Under Test tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL None None None None None None None None Apply 4.5V None Other Input Same Apply Apply 4.5V Remaining Remaining Remaining Remaining None Apply Remaining Remaining Remaining Remaining Remaining Remaining Remaining Other Data Inputs Output Under Test
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Logic Diagram
Input Symbol Under Test tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL
(Continued)
TABLE DIFF MODE TEST Function Inputs: 4.5V,S0 (Continued) Other Input Same Apply 4.5V None None None None Apply None None None Apply 4.5V None Remaining Remaining None None TABLE LOGIC MODE TEST Function Inputs: 4.5V, Input Symbol Under Test tPLH tPHL tPLH tPHL None None Apply 4.5V Other Input Same Apply None Apply 4.5V None Apply Remaining Remaining Other Data Inputs Output Under Test Apply Remaining Remaining Remaining Remaining Remaining None Other Data Inputs Output Under Test
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DM93S41 4-Bit Arithmetic Logic Unit
Physical Dimensions
inches (millimeters) unless otherwise noted
24-Lead Molded Dual-In-Line Package Order Number DM93S41N Package Number N24A
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT FAIRCHILD SEMICONDUCTOR CORPORATION. used herein: critical component component life support Life support devices systems devices sysdevice system whose failure perform reatems which, intended surgical implant into sonably expected cause failure life support body, support sustain life, whose device system, affect safety effectiveness. failure perform when properly used accordance with instructions provided labeling, reasonably expected result significant injury user.
Fairchild Semiconductor Corporation Americas Customer Response Center Tel: 1-888-522-5372 Fairchild Semiconductor Europe Fax: 80-530 Email: europe.support@nsc.com Deutsch Tel: 141-35-0 English Tel: 793-85-68-56 Italy Tel: 5631 Fairchild Semiconductor Hong Kong Ltd. 13th Floor, Straight Block, Ocean Centre, Canton Tsimshatsui, Kowloon Hong Kong Tel: +852 2737-7200 Fax: +852 2314-0061 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179
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Fairchild does assume responsibility circuitry described, circuit patent licenses implied Fairchild reserves right time without notice change said circuitry specifications.

DM93S41 4-Bit Arithmetic Logic Unit DM93S41 4-bit arithmetic logi

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