74HC283N Datasheet, PDF (5/20 Pages) NXP Semiconductors – 4-bit binary full adder with fast carry

Philips Semiconductors
74HC283
4-bit binary full adder with fast carry
6.2 Pin description
Table 3:
Symbol
S2
B2
A2
S1
A1
B1
CIN
GND
COUT
S4
B4
A4
S3
B3
A3
V_CC
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
sum output 2
B operand input 2
A operand input 2
sum output 1
A operand input 1
B operand input 1
carry input
ground (0 V)
carry output
sum output 4
B operand input 4
A operand input 4
sum output 3
A operand input 3
B operand input 3
positive supply voltage
7. Functional description
7.1 Function table
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
HL
HL
H
L
L
H
H
L
L
HH
Active HIGH ^[2] 0
1
0
1
0
1
0
0
1
1
0
0
1
1
Active LOW ^[3] 1
0
1
0
1
0
1
1
0
0
1
1
0
0
[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).
9397 750 13811
Product data sheet
Rev. 03 — 11 November 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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