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PDF MC54F181 Data sheet ( Hoja de datos )
| Número de pieza | MC54F181 | |
| Descripción | 4-BIT ARITHMETIC LOGIC UNIT | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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4-BIT ARITHMETIC LOGIC UNIT
The MC54/74F181 is a 4-bit Arithmetic Logic Unit (ALU) which can perform
all the possible 16 logic operations on two variables and a variety of arithmetic
operations. It is 40% faster than the Schottky ALU and only consumes 30%
as much power.
• Provides 16 Arithmetic Operations, ie, Add, Subtract, Compare,
Double, Plus Twelve Other Arithmetic Operations
• Provides all 16 Logic Operations of Two Variables, ie, Exclusive-OR,
Compare, AND, NAND, OR, NOR, Plus Ten Other Logic Operations
• Full Lookahead for High-Speed Arithmetic Operation on Long Words
MC54/74F181
4-BIT ARITHMETIC LOGIC UNIT
FAST™ SCHOTTKY TTL
CONNECTION DIAGRAM
VCC A1 B1 A2 B2 A3 B3 G Cn+4 P A = B F3
24 23 22 21 20 19 18 17 16 15 14 13
1 2 3 4 5 6 7 8 9 10 11 12
B0 A0 S3 S2 S1 S0 Cn M F0 F1 F2 GND
24
1
N SUFFIX
PLASTIC
CASE 724-03
ORDERING INFORMATION
MC54/74FXXXN Plastic
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA Operating Ambient Temperature Range
IOH
VOH
IOL
Output Current — High
Output Voltage — High
A = B output
Output Current — Low
54, 74
54
74
54, 74
54, 74
54, 74
Min
4.5
– 55
0
Typ Max
5.0 5.5
25 125
25 70
–1.0
5.5
20
Unit
V
°C
mA
V
mA
FAST AND LS TTL DATA
4-92
1 page  
MC54/74F181
FUNCTION TABLE
Mode Select
Inputs
Active-LOW Operands
& Fn Outputs
Active-HIGH Operands
& Fn Outputs
Logic Arithmetic**
S3 S2 S1 S0 (M = H) (M = L) (Cn = L)
Logic Arithmetic**
(M = H) (M = L) (Cn = H)
L L L LA
A minus 1
L L L H AB
AB minus 1
L L H L A + B AB minus 1
L L H H Logic 1 minus 1
A
A+B
AB
Logic 0
A
A+B
A+B
minus 1
L H L L A + B A plus (A + B)
L H L HB
AB plus (A + B)
L H H L A ⊕ B A minus B minus 1
L H H H A+B A+B
AB
B
A⊕B
AB
A plus AB
(A + B) plus AB
A minus B minus 1
AB minus 1
H L L L AB
A plus (A + B)
H L L H A ⊕ B A plus B
H L H LB
AB plus (A + B)
H L H H A+B A+B
A+B
A⊕B
B
AB
A plus AB
A plus B
(A + B) plus AB
AB minus 1
H H L L Logic 0 A plus A*
H H L H AB
AB plus A
H H H L AB
AB minus A
H H H HA
A
*Each bit is shifted to the next more significant position.
**Arithmetic operations expressed in 2s complement notation.
Logic 1
A+B
A+B
A
A plus A*
(A + B) plus A
(A + B) plus A
A minus 1
H = HIGH Voltage Level
L = LOW Voltage Level
FAST AND LS TTL DATA
4-96
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet MC54F181.PDF ] | |
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