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74HC283N Datasheet(Fiches technique) 5 Page - NXP Semiconductors

Numéro de pièce 74HC283N
Description  4-bit binary full adder with fast carry
Télécharger  20 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
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9397 750 13811
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 — 11 November 2004
5 of 20
Philips Semiconductors
74HC283
4-bit binary full adder with fast carry
6.2 Pin description
7.
Functional description
7.1 Function table
[1]
H = HIGH voltage level;
L = LOW voltage level.
[2]
Example for active HIGH: 10 + 9 (0 + 1010 + 1001) = 19 (10011).
[3]
Example for active LOW: 5 + 6 (1 + 0101 + 0110) = 12 (01100).
Table 3:
Pin description
Symbol
Pin
Description
S2
1
sum output 2
B2
2
B operand input 2
A2
3
A operand input 2
S1
4
sum output 1
A1
5
A operand input 1
B1
6
B operand input 1
CIN
7
carry input
GND
8
ground (0 V)
COUT
9
carry output
S4
10
sum output 4
B4
11
B operand input 4
A4
12
A operand input 4
S3
13
sum output 3
B3
14
A operand input 3
A3
15
B operand input 3
VCC
16
positive supply voltage
Table 4:
Function table [1]
Pins
Input
Output
CIN
A4
A3
A2
A1
B4
B3
B2
B1
COUT
S4
S3
S2
S1
Logic levels
L
H
L
H
L
H
L
L
H
H
L
L
H
H
Active HIGH [2]
0101010011
0
011
Active LOW [3]
1010101100
1
100




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