ITT - Index of

ITT
ITT5483, ITT7483
4-BIT BINARY FULL ADDERS
- -----
SEMICONDUCTORS
MSI 4-BIT BINARY FULL ADDERS
HIGH-SPEED TTL 4-BIT FULL ADDERS
FOR APPLICATION IN
• Digital Computer Systems
• Data-Handling Systems
• Control Systems
This full adder performs the addition of two 4-bit
binary numbers. The sum (~\ outputs are provided
for each bit and the resultant carry (C4 ) is obtained
from the fourth bit. Designed for mediumto-high-speed.
mUltiple-bit, parallel-add/serial-carry
applications, the circuit utilizes high-speed, highfan-out
transistor-transistor logic (TTL) but is compatible
with both DTL and TTL families. The implementation
of a single-inversion, high-speed,
Darlington-connected serial-carry circuit within
each bit minimizes the necessity for extensive
"look-ahead" and carry-cascading circuits. The
power dissipation level has been maintained considerably
below that attainable with equivalent
standard integrated circuits connected to perform
four-bit full-adder functions.
DUAL-IN-LiNE PACKAGE
AND FLAT PACKAGE
PIN CONFIGURATION
(TOP VIEW>t
, Pin assignments for these circuits are the same
for all packages.'
absolute maximum ratings over operating
temperature range (unless otherwise noted)
Supply Voltage V CC (See Note 1) ........................... 7V
Input Voltage, Vin (See Notes 1 and 2) .............. 5.5V
Operating Free-Air Temperature Range:
ITT5483 Circuits .......................... -55°C to 125°C
ITT7483 Circuits ................................... 0° C to 70° C
Storage Temperature Range ......... -65°C to 150°C
Notes:
1. These voltage values are with respect to
network ground terminal.
2. Input signals must be zero or positive with
respect to network ground terminal.
logic
Note: 3. Input conditions at A l' A 2. B l' B2, and Co
are used to determine outputs ~1 and I:2'
and the value of the internal carry C2. The
values at C2. A3, B3. A4, and B4. are then
used to determine outputs I:3. I:4. and C4 .
A3
I
INPUT
A
"3
IX
A_
o 0 0
,
0 0
0
, ,
0
0
0 0 , 0 0
, , ,
0 0 0
,
0 0
0
, ,
0
0
0 0 , 0 0
, . , ,
TRUTH TABLE
OUTPUT
% %
co=o Co =1
WHEN
WHEN
. Cz=O C2 =1
-2 -2
IX %
c_
f-IX IX IX ~-X
::3 !:4 c_
"-
0 0 0 0 , 0 0
0 , 0 0 0 , 0
0
, 0 0 0 , 0
0 0 0 0
0 0 0 , , 0
0 0 0 0 0 , , 0 0 0 0 0 0 , 0 ,
0 0 , , 0
0 0 0 , ,. 0 0 0 0 0 0 0 0 , 0 0 0 , 0 0 , 0 , , , , ,
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