CD54HC283, CD74HC283,
CD54HCT283, CD74HCT283
Data sheet acquired from Harris Semiconductor
SCHS176D
High-Speed CMOS Logic
4-Bit Binary Full Adder with Fast Carry
November 1997 - Revised October 2003
Features
Description
• Adds Two Binary Numbers
The ’HC283 and ’HCT283 binary full adders add two 4-bit
binary numbers and generate a carry-out bit if the sum
exceeds 15.
• Full Internal Lookahead
[ /Title
(CD74
HC283
,
CD74
HCT28
3)
• Fast Ripple Carry for Economical Expansion
• Operates with Both Positive and Negative Logic
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.
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Ordering Information
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
/Sub-
ject
o
PART NUMBER
CD54HC283F3A
CD54HCT283F3A
CD74HC283E
TEMP. RANGE ( C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
PACKAGE
16 Ld CERDIP
16 Ld CERDIP
16 Ld PDIP
16 Ld SOIC
16 Ld SOIC
16 Ld SOIC
16 Ld PDIP
16 Ld SOIC
16 Ld SOIC
16 Ld SOIC
• Significant Power Reduction Compared to LSTTL
Logic ICs
(High
Speed
CMOS
Logic
4-Bit
Binary
Full
• HC Types
- 2V to 6V Operation
CD74HC283M
- High Noise Immunity: N = 30%, N = 30% of V
IL IH CC
at V
= 5V
CC
CD74HC283MT
CD74HC283M96
CD74HCT283E
CD74HCT283M
CD74HCT283MT
CD74HCT283M96
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
Adder
V = 0.8V (Max), V = 2V (Min)
IL IH
- CMOS Input Compatibility, I ≤ 1µA at V , V
l
OL OH
NOTE: When ordering, use the entire part number. The suffix 96
denotes tape and reel. The suffix T denotes a small-quantity reel of
250.
Pinout
Functional Diagram
5
4
CD54HC283, CD54HCT283
(CERDIP)
CD74HC283, CD74HCT283
(PDIP, SOIC)
A0
B0
A1
B1
A2
B2
A3
B3
S0
S1
S2
S3
C
6
3
1
TOP VIEW
2
S1
B1
A1
S0
A0
B0
1
2
3
4
5
6
7
8
16 V
CC
15 B2
14 A2
13 S2
12 A3
11 B3
10 S3
14
15
12
13
10
9
11
7
C
IN
C
9
C
OUT
GND
IN
OUT
GND = 8
= 16
V
CC
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2003, Texas Instruments Incorporated
1