CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright
©
Harris Corporation 1994
1
S E M I C O N D U C T O R
CD54AC283/3A
CD54ACT283/3A
4-Bit Binary Full Adder with Fast Carry
Functional Diagram
5
6
3
2
15
11
12
14
4
9
S2
S1
A0
B0
A1
B1
B2
A3
B3
A2
7
C
IN
GND = 8
V
CC
= 16
10
13
1
S0
S3
C
OUT
Description
The CD54AC283/3A and CD54ACT283/3A are 4-bit binary
adders with fast carry that utilize the Harris Advanced CMOS
Logic technology. These devices add two 4-bit binary num-
bers and generate a carry-out bit if the sum exceeds 15.
Because of the symmetry of the add function, this device
can be used with either all active-HIGH operands (positive
logic) or with all active-LOW operands (negative logic).
When using positive logic, the carry-in input must be tied
LOW if there is no carry-in.
The CD54AC283/3A and CD54ACT283/3A are supplied in
16 lead dual-in-line ceramic packages (F suffix).
ACT INPUT LOAD TABLE
INPUT
UNIT LOAD (NOTE 1)
A1, B1, A3, B3
1.33
A2, B2
1.5
A4, B4
1
C
IN
0.83
NOTE:
1. Unit load is
I
CC
limit specified in DC Electrical Specifications
Table, e.g., 2.4mA Max at +25
o
C.
June 1997
File Number
3906
Absolute Maximum Ratings
DC Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6V
DC Input Diode Current, I
IK
For V
I
< -0.5V or V
I
> V
CC
+ 0.5V
. . . . . . . . . . . . . . . . . . . . . .±
20mA
DC Output Diode Current, I
OK
For V
O
< -0.5V or V
O
> V
CC
+ 0.5V
. . . . . . . . . . . . . . . . . . . . .±
50mA
DC Output Source or Sink Current, Per Output Pin, I
O
For V
O
> -0.5V or V
O
< V
CC
+ 0.5V
. . . . . . . . . . . . . . . . . . . . .±
50mA
DC V
CC
or GND Current, I
CC
or I
GND
For Up to 4 Outputs Per Device, Add
±
25mA For Each
Additional Output
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±
100mA
Power Dissipation Per Package, P
D
T
A
= -55
o
C to +100
o
C (Package F) . . . . . . . . . . . . . . . . . . 500mW
T
A
= +100
o
C to +125
o
C (Package F) . . . . . . . . Derate Linearly at
8mW/
o
C to 300mW
Operating Temperature Range, T
A
Package Type F . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
Storage Temperature, T
STG
. . . . . . . . . . . . . . . . . . -65
o
C to +150
o
C
Lead Temperature (During Soldering)
At Distance 1/16in.
±
1/32in. (1.59mm
±
0.79mm)
From Case For 10s Max . . . . . . . . . . . . . . . . . . . . . . . . . . +265
o
C
Unit Inserted Into a PC Board (Min Thickness 1/16in., 1.59mm)
With Solder Contacting Lead Tips Only. . . . . . . . . . . . . . . +300
o
C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Recommended Operating Conditions
Supply Voltage Range, V
CC
Unless Otherwise Specified, All Voltages Referenced to GND
T
A
= Full Package Temperature Range
CD54AC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5V to 5.5V
CD54ACT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, V
I
, V
O
. . . . . . . . . . . . . . . . . . 0V to V
CC
Operating Temperature, T
A
. . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
Input Rise and Fall Slew Rate, dt/dv
at 1.5V to 3V (AC Types) . . . . . . . . . . . . . . . . . . . 0ns/V to 50ns/V
at 3.6V to 5.5V (AC Types) . . . . . . . . . . . . . . . . . 0ns/V to 20ns/V
at 4.5V to 5.5V (AC Types) . . . . . . . . . . . . . . . . . 0ns/V to 10ns/V
COMING SOON!
COMPLETE DATA SHEET
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