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Número de pieza | 74HCT181N | |
Descripción | 4-bit arithmetic logic unit | |
Fabricantes | Philips | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de 74HCT181N (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
No Preview Available ! INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
• The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
• The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT181
4-bit arithmetic logic unit
Product specification
Supersedes data of September 1993
File under Integrated Circuits, IC06
1998 Jun 10
1 page Philips Semiconductors
4-bit arithmetic logic unit
Product specification
74HC/HCT181
FUNCTION TABLES
MODE SELECT
INPUTS
ACTIVE HIGH INPUTS AND
OUTPUTS
S3 S2 S1 S0
LOGIC
(M=H)
ARITHMETIC(2)
(M=L; Cn=H)
L L L LA
A
L L L H A+B
A+B
L L H L AB
A+B
L L H H logical 0 minus 1
L H L L AB
L H L HB
L H H L A⊕B
L H H H AB
A plus AB
(A + B) plus AB
A minus B minus 1
AB minus 1
H L L L A+B
H L L H A⊕B
H L H LB
H L H H AB
A plus AB
A plus B
(A + B) plus AB
AB minus 1
H H L L logical 1 A plus A(1)
H H L H A+B
(A + B) plus A
H H H L A+B
(A + B) plus A
H H H HA
A minus 1
Notes to the function tables
1. Each bit is shifted to the next more significant position.
2. Arithmetic operations expressed in 2s complement
notation.
MODE SELECT
INPUTS
ACTIVE LOW INPUTS AND
OUTPUTS
S3 S2 S1 S0
LOGIC
(M=H)
ARITHMETIC(2)
(M=L; Cn=L)
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 logical 1 minus 1
L H L L A+B
L H L HB
L H H L A⊕B
L H H H A+B
A plus (A + B)
AB plus (A + B)
A minus B minus 1
A+B
H L L L AB
H L L H A⊕B
A plus (A + B)
A plus B
H L H LB
AB plus (A + B)
H L H H A+B
A+B
H H L L logical 0 A plus A(1)
H H L H AB
AB plus A
H H H L AB
AB plus A
H H H HA
A
Notes to the function tables
1. Each bit is shifted to the next more significant position.
2. Arithmetic operations expressed in 2s complement
notation.
H = HIGH voltage level
L = LOW voltage level
H = HIGH voltage level
L = LOW voltage level
1998 Jun 10
5
5 Page Philips Semiconductors
4-bit arithmetic logic unit
Product specification
74HC/HCT181
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
Voltages are referenced to GND (ground = 0 V)
Tamb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HCT
+25
UNIT
−40 to +85 −40 to +125
VCC
(V)
VIL OTHER
min. typ. max. min. max. min. max.
IOZ HIGH level output
leakage current
0.5
5.0
10.0 µA
2.0 VIL note 1
to VO = 0 or 6 V
6.0
Note to the DC characteristics
1. The maximum operating output voltage (VO(max)) is 6.0 V.
Note to HCT types
The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications.
To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
Cn, M
An, Bn
Sn
UNIT LOAD COEFFICIENT
0.50
0.75
1.00
1998 Jun 10
11
11 Page |
Páginas | Total 20 Páginas | |
PDF Descargar | [ Datasheet 74HCT181N.PDF ] |
Número de pieza | Descripción | Fabricantes |
74HCT181 | 4-bit arithmetic logic unit | Philips |
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